asia communications and photonics conference (acp) 2021

ACP 2021 • 24 October 2021–27 October 2021 •

Asia Communications and Photonics Conference (ACP) 2021 24-27 October 2021

Pudong Shangri-La Hotel, Shanghai, China

Table of Contents

Welcome Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

Committees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

Conference Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

Workshops and Forums . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00

Agenda of Sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00

ACP Technical Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00

Key to Authors and Presiders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00


Welcome to Shanghai and to the Asia Communications

and Photonics Conference

It is a great pleasure to invite you to participate in the Asia Communications and Photonics Conference (ACP) 2021 and share the latest news in communications and photonics science, technology and innovations from leading companies, universities and research laboratories throughout the world . ACP is now the largest conference in the Asia- Pacific region on optical communication, photonics and relevant technologies . ACP has been held annually tracing back to 2001 and jointly sponsored by Optica, SPIE, IEEE Photonics Society, COS and CIC .

The conference format of ACP 2021 will be on site for attendees residing within mainland China and online for attendees residing outside of mainland China because of the global impact of COVID-19 . The organizing committee hopes that ACP 2021 will give participants from all over the world a good opportunity to communicate with each other in this difficult situation .

The ACP technical conference features a full suite of plenary, tutorial, invited, and contributed talks given by international academic and industrial researchers who are leaders in their respective fields . This year’s conference will feature the following topics: Optical Fibers, Fiber-based Devices; Optical Transmission Sub-systems, Systems and Technologies; Network Architectures, Management and Applications; Optoelectronic Devices and Integration; Microwave Photonics and Optical Signal Processing; Photonics for Energy; Photonics for Biology and Medicine . The conference will also include a wide spectrum of workshops and industrial forums taking place on October 24th . With a conference program of broad scope and of the highest technical quality, ACP provides an ideal venue to keep up with new research directions and an opportunity to meet and interact with the researchers who are leading these advances . We have over 600 papers scheduled, including

over 100 invited and 7 tutorial presentations made by many of the world’s most prominent researchers from academia and industry . We thank all the contributors and authors for making ACP a truly unique, outstanding global event .

Our conference highlight is the Plenary Session scheduled in the morning of Monday (October 25th) . Four outstanding, distinguished speakers will give presentations: Ruxin Li from ShanghaiTech Univ . will discuss the free-electron laser based on a laser accelarator . Xiang Liu from Futurewei Technologies will give a talk on Emerging Optical and Photonic Technologies for Communications and Beyond . Shanhui Fan from Stanford Univ . will discuss Explorations of topological photonics in synthetic dimensions . Tobias J . Kippenberg from EPFL will talk about Photonic Chip based Frequency Combs .

In addition to the regular technical sessions, 9 workshops and 4 Industry Forums will feature additional 120 speakers . The pre-conference workshops will be held on Sunday, October 24th starting at 08:00 AM . These workshops will be held free of charge to conference registrants . We would like to thank the workshop organizers and speakers for the excellent program .

This year, Huawei, will sponsor the Best Paper Award in Industry Innovation, Optica will sponsor the Best Student Paper Award . Fiberhome will sponsor the Best Poster Award . The awards will be presented during the Banquet on Tuesday, October 26th . The poster-only session will be held on Tuesday, October 26th . from 15:30–18:00 . This is a good chance for you to meet with the authors and discuss technical issues in-depth .

In addition to the technical program, we have also an impressive range of exhibitions from the relevant industries, publishers, and professional organizations .

We have also prepared a rich social program to facilitate meeting and networking with colleagues from all over the world . A conference welcome reception will be held in the evening on Monday October 25th . On the evening of Tuesday, October 26th, we will hold a Banquet and Awards Ceremony for conference registrants .

It is an enormous task to organize a conference and it is impossible to succeed without the dedicated efforts of many supporters and volunteers . We are indebted to the entire Technical Program Committee and the Subcommittee Chairs who have worked persistently throughout the whole year to invite speakers, solicit and review papers, organize the technical sessions which results in the excellent technical program . We also thank the staff and volunteers of Shanghai Jiao Tong University . We also thank the professional societies such as Optica, IEEE Photonics Society, SPIE, COS and CIC for organizing and sponsoring this great event .

Sincerely,

Connie Chang-Hasnain Univ. of California, Berkeley, USA

ACP2021 General Chair


Committees Advisory Chairs Xiaomin Ren, Beijing Univ. of Posts and Telecommunications,

China Peter J . Winzer, Nubis Communications, USA

General Chair Connie Chang-Hasnain, Univ. of California, Berkeley, USA

General Co-Chairs Alan Willner, Univ. of Southern California, USA William Shieh, Univ. of Melbourne, Australia Perry Shum, Southern Univ. of Science and Technology, China Yikai Su, Shanghai Jiao Tong Univ., China

Technical Program Committee Chair Guifang Li, Univ. of Central Florida, USA

Technical Program Committee Co-Chairs Ben Eggleton, Univ. of Sydney, Australia Rene Essiambre, Nokia Bell Labs, USA Daoxin Dai, Zhejiang Univ., China

Workshop Technical Program Committee Chairs Xuhan Guo, Shanghai Jiao Tong Univ., China Liangming Xiong, State Key Laboratory of Optical Fiber and Cable

Manufacture Technology, China

Industry Forum Chairs Xiang Liu, Huawei Hong Kong Research Center, China Chongjin Xie, Alibaba Group, USA

Industry Forum Technical Program Committee Chair Jie Luo, YOFC, China

Local Organizers Xuhan Guo, Shanghai Jiao Tong Univ., China Yong Zhang, Shanghai Jiao Tong Univ., China Ciyuan Qiu, Shanghai Jiao Tong Univ., China Lu Sun, Shanghai Jiao Tong Univ., China Yuye Ling, Shanghai Jiao Tong Univ., China Yan Li, Shanghai Jiao Tong Univ., China

Yuzhu Wang, Shanghai Jiao Tong Univ., China Jing Zhong, Shanghai Jiao Tong Univ., China

Steering Committee

Chair: Xiaomin Ren, Beijing Univ. of Posts and Telecommunications,

China

Vice Chair: Ping Perry Shum, Southern Univ. of Science and Technology, China

Members: Yasuhiko Arakawa, Univ. of Tokyo, Japan Andrew Brown, SPIE, USA Connie J . Chang-Hasnain, Univ. of California, Berkeley, USA

[Optica] Naomi Chavez, Optica, USA Arthur Chiou, Yang-Ming Univ., Taiwan, China Yun C . Chung, Korea Advanced Inst. of Science and Technology,

South Korea Sailing He, Zhejiang Univ., China & KTH, Sweden Chennupati Jagadish, Australian National Univ., Australia Thomas L . Koch, Univ. of Arizona, USA Ming-Jun Li, Corning Inc., USA Xingde Li, Johns Hopkins Univ., USA Xiang Liu, Huawei Hong Kong Research Center, China Chao Lu, The Hong Kong Polytechnic Univ., Hong Kong, China Doug Razzano, IEEE Photonics Society, USA Xiaomin Ren, Beijing Univ. of Posts and Telecommunications,

China [COS] Ping Perry Shum, Southern Univ. of Science and Technology, China

[IEEE PS] Yikai Su, Shanghai Jiao Tong Univ., China Xunbing Wei, Peking Univ., China [SPIE] Shaohua Yu, Wuhan Inst. of Posts and Telecommunications, China

[CIC] Xinliang Zhang, Huazhong Univ. of Science and Technology, China

[COS]

Track Committees

Track 1: Optical Fibers, Fiber-based Devices

Leading Chair Siddharth Ramachandran, Boston Univ., USA

Co-chairs Yongmin Jung, Univ. of Southampton, UK Limin Xiao, Fudan Univ., China

TPC Members Tuan Guo, Jinan Univ., China Jonathan Hu, Baylor Univ., USA Yvonne Kang, Huawei, China Byeong Ha Lee, Gwangju Inst. of Science & Tech., South Korea Yunqi Liu, Shanghai Univ., China Shuqin Lou, Beijing JiaoTong Univ., China Georg Rademacher, NICT, Japan Lars Rishoj, DTU, Denmark Jian Wang, Huazhong Univ. of Science and Technology, China Kenneth, K .Y . Wong, Univ. of Hong Kong, Hong Kong, China Seongwoo Yoo, Nanyang Technology Univ., Singapore Xuping Zhang, Nanjing Univ., China

Track 2: Optical Transmission Sub-systems, Systems and Technologies

Leading Chair Haoshuo Chen, Nokia Bell Labs, USA

Co-chairs Benjamin J . Puttnam, NICT, Japan Chigo Okonkwo, Eindhoven Univ. of Technology, Holland Ezra Ip, NEC Laboratories, USA

TPC Members Mingming Tan, Aston Univ., UK Songnian Fu, Guangdong Univ. of Technology, China Fatima Gunning, Tyndall Inst, Ireland Itsuro Morita, KDDI Research, Japan Sun Hyok Chang, ETRI, Soutch Korea Fan Zhang, Peking Univ., China Jochen Schröder, Chalmers Univ. of Technology, Sweden


Maxim Kuschnerov, Huawei, Germany Yi Cai, Soochow Univ., China Mohamed Osman, Infinera, Canada Seongwoo Yoo, Nanyang Technology Univ., Singapore Qunbi Zhuge, Shanghai Jiao Tong Univ., China Danshi Wang, Beijing Univ. of Post and Telecommunications,

China

Track 3: Network Architectures, Management and Applications

Leading Chair Gangxiang Shen, Soochow Univ., China

Co-chairs Elaine Wong, Melbourne Univ., Australia Massimo Tornatore, Politecnico di Milano, Italy Yongli Zhao, Beijing Univ. of Posts and Telecommunications, China

TPC Members Avishek Nag, Univ. College Dublin, Ireland Francesco Musumeci, Politecnico di Milano, Italy Alessio Giorgetti, CNR, Italy Shuangyi Yan, Bristol, UK Miquel Garrich, Vodafone Spain, Spain Lei Guo, Chongqing Univ. of Posts and Telecommunications,

China Shanguo Huang, Beijing Univ. of Posts and Telecommunications,

China Ning Liu, Soochow Univ., China Zeshan Chang, Huawei Technology, China Chathurika Ranaweera, Deakin Univ., Australia Pubuduni Maluge Imali Dias, Deakin Univ., Australia Ke Wang, RMIT, Australia Lihua Ruan, Chinese Univ. of Hong Kong, Hong Kong, China Christina Lim, Univ. of Melbourne, Australia Nan Hua, Tsinghua Univ., China Lei Wang, Alibaba, China Yunbo Li, China Mobile, China Huaxi Gu, Xidian Univ., China

Track 4: Optoelectronic Devices and Integration

Leading Chair Di Liang, Hewlett Packard Enterprise, USA

Co-chairs Yaoshen Shi, Zhejiang Univ., China Xinlun Cai, Sun Yat-Sen Univ., China Nobuhiko Nishiyama, Tokyo Inst. of Technology, Japan

TPC Members Kyoungsik Yu, Korea Advanced Inst. of Science and Technology

(KAIST), South Korea Zejie Yu, Zhejiang Univ., China Qiancheng Zhao, Univ. of California, Santa Barbara, USA Minhao Pu, Technical Univ. of Denmark, Denmark Wei Shi, Université Laval, Canada Siming Chen, Univ. College London, UK Binhao Wang, Chinese Academy of Sciences, China Yuqing Jiao, Eindhoven Univ. of Technology, Holland Junichi Fujikata, Photonics Electronics Technology Research

Association, Japan Chung-en Zah, Focuslight, China Yong Zhang, Shanghai Jiaotong Univ., China Lei Bi, Univ. of Science and Technology of China, China

Track 5: Microwave Photonics and Optical Signal Processing

Leading Chair Shilong Pan, Nanjing Univ. of Aeronautics and Astronautics, China

Co-chairs Lawrence R Chen, McGill Univ., Canada Xihua Zou, Southwest Jiaotong Univ., China David Marpaung, Univ. of Twente, Holland

TPC Members Yang Liu, École polytechnique fédérale de Lausanne, Switzerland Daniel Pérez López, Universitat Politècnica de València, Spain Zhixin Liu, Univ. College London, UK Andreas Stohr, Univ. of Duisberg-Essen, Germany Tetsuya Kawanishi, Waseda Univ., Japan Mable Fok, Univ. of Georgia, USA José Azaña, INRS-EMT, Canada Jianji Dong, Huazhong Univ. of Science and Technology, China Lai Wang, Tsinghua Univ., China

Yitang Dai, Beijing Univ. of Posts and Telecommunications, China Zhenzhou Tang, Nanjing Univ. of Aeronautics and Astronautics,

China

Track 6: Photonics for Energy

Leading Chair Jiang Tang, Huazhong Univ. of Science and Technology, China

Co-chairs Jingbi You, Inst. of Semiconductors, CAS, China Haizheng Zhong, Beijing Inst. of Technology, China

TPC Members Zhijun Ning, ShanghaiTech Univ., China Zewen Xiao, Huazhong Univ. of Science and Technology, China Liang Li, Shanghai Jiao Tong Univ., China Chaodan Pu, ShanghaiTech Univ., China Xudong Yang, Shanghai Jiao Tong Univ., China Yiqiang Zhan, Fudan Univerisity, China Feng Gao, Linköping Univ., Sweden Hairen Tan, Najing Univ., China Xihua Wang, Univ. of Alberta, Canada

Track 7: Photonics for Biology and Medicine

Leading Chair Peng Xi, Peking Univ., China

Co-chairs Valery V . Tuchin, Saratov National Research State Univ., Russia Junle Qu, Shenzhen Univ., China Xunbin Wei, Peking Univ., China

TPC Members Sihua Yang, South China Normal Univ., China Chao Tian, Univ. of Science and Technology of China, China Leiting Pan, Nankai Univ., China Liwei Liu, Shenzhen Univ., China Ming Lei, Xi’an Jiaotong Univ., China Guohua Shi, Suzhou Inst. of Biomedical Engineering and

Technology, CAS, China Ke Si, Zhejiang Univ., China Changfeng Wu, Southern Univ. of Science and Technology, China


General Information Conference Venue: Pudong Shangri-La, Shanghai

Address: 33 Fu Cheng Road, Pudong, Shanghai, China

Accessibility

Pudong Shangri-La, Shanghai is located on the famous Huangpu River, in Shanghai’s vibrant Lujiazui financial district, directly opposite the historical Bund . It is about 35-minute drive from Shanghai Hongqiao Airport and about 45-minute drive from Pudong International Airport .

Transportation

From Shanghai Pudong International Airport（上海浦东国际机场）

By Metro: 1 hour 14 min, 6 RMB

By Maglev Train & Metro: 39 min, 54 RMB

By Taxi: 45 min, 42 km, 160 RMB

From Shanghai Hongqiao International Airport（上海虹桥国际机场）

By Metro: 2 hour, 41 RMB

By Taxi: 31 min, 18 .4 km, 60 RMB

From Shanghai Hongqiao Railway Station（上海虹桥火车站）

By Metro: 46 min, 3 RMB


From Shanghai Railway Station（上海站）

By Metro: 29 min, 6RMB


From Shanghainan Railway Station（上海南站）

By Metro: 45 min, 4 RMB


Registration Location: Lobby of Pudong Shangri-La, Shanghai

Hours

07: 30–19:00 Sunday, 24 October

07: 30–18:00 Monday, 25 October

08: 00–18:00 Tuesday, 26 October

08: 00–16:00 Wednesday, 27 October

Onsite Speaker Preparation

All presenters should check in at the corresponding session room at least 30 minutes prior to their scheduled talk to upload and check their presentation . No shows of the oral presentation will be reported to conference management and these papers will not be published.

Onsite Poster Preparation

Authors should prepare their poster before the poster session starts . The poster must not exceed the boundaries of the display board . Authors are required to be standing by their poster for the duration of their allocated session to answer questions and further discuss their work with attendees . No shows posters will be reported to conference management and these papers will not be published.


Poster Session: 15:30-18:00, Tuesday, 26 October

Poster Board Size: 1m (Length) * 2 .235m (Height)

Recommended Poster Size: 0 .8m (Length) * 1 .2m (Height)

Set-up Time: 10:00–14:00, Tuesday, 26 October

Tear-down Time: 18:30–20:00, Tuesday, 26 October

Location: Beijing Room, 2F, Pudong Shangri-La, Shanghai

Exhibition

The ACP 2021 Exhibition is open to all attendees .

Location: Grand Ballroom Foyer, 3F, Pudong Shangri-La, Shanghai

Hours

09: 00–18: 00 Monday, 25 October

09: 00–18: 00 Tuesday, 26 October

09: 00–16: 00 Wednesday, 27 October

Coffee Breaks

Lunches

Four-day buffet lunches (Oct . 24-27) in Pudong Shangri-La, Shanghai are included in the registration fee for all registered delegates . And lunch tickets are provided within the badge .

Location: Yi Café, 2F, Grand Tower

Hours

12: 00–13: 00 Sunday, 24 October




Conference Materials

ACP2021 Technical Digest will be provided in a USB drive and not available in print form . The ACP2021 Technical Di- gest material is composed of the 3-page summaries of invited and accepted contributed papers . The Technical Digest material is included with a technical conference registration and can be found in your registration bag . The Digest will be available on Optica Publishing Group platform (https://www . osapublishing .org/) and IEEE Xplore Digital Library (http:// www .ieee .org/web/publications/xplore/) after the conference . IEEE Xplore Digital Library and Optica Publishing Group platform are archived and indexed by INSPEC R and EI Compendex, where it will be available to the international technical community .

Social Activities

Welcome Reception

The ACP2021 Welcome Reception is free to all the registered attendees . A ticket is provided within the badge . And extra ticket could be purchased at the Registration Desk for 300RMB per person .

Location: Yi Café, 2F, Grand Tower Time:

Monday, 25 October 17:30–20:00

Conference Banquet and Awards Ceremony

Best Paper Award in Industry Innovation, Best Student Paper Award, and Best Poster Award will be presented at the banquet . The Banquet is NOT INCLUDED in the registration fee for students, but is included for all other regular registration types . The ticket is provided within the badge . And extra banquet ticket could be purchased at the Registration Desk for 500RMB per person .

Location: Grand Ballroom, 3F, River Wing, Pudong Shangri- La, Shanghai

Time: 18:30–21:30








Conference Highlights Plenary Presentations

Time: 08:30–11:55, Monday, 25 October

Venue: Grand Ballroom, 3F, River Wing, Pudong Shangri-La, Shanghai

ACP2021 will feature 4 plenary presentations . The presentations will be preceded by an Opening Ceremony from 08:30 – 08:45 . For more information about the individual presenters, talk titles and biographies appear below .

The free-electron laser based on a laser accelarator

8:45–9:25, Monday, 25 October

Ruxin Li ShanghaiTech Univ ., China

Biography: TBA

Emerging Optical and Photonic Technologies for Communications and Beyond


Xiang Liu Huawei Hong Kong Research Center, China

Biography: Xiang Liu is Vice President for Optical Transport and Access at Fu- turewei Technologies, focusing on optical technologies, standards, and industry development for optical transport and access networks . Xiang has more than 20 years of working experience in the

optical communication industry . Before joining Futurewei, he had been with Bell Labs working on high-speed optical transmission technologies for 14 years . He has authored over 350 publications and holds over 100 US patents .

Xiang received the Ph .D . degree in applied physics from Cornell Univ . in 2000 . He is a Fellow of the IEEE, a Fellow of the OSA, a Deputy Editor of Optics Express, a Co-Editor of the IEEE Communications Magazine’s Optical Communica- tions Series, an Advisory Board member of NGOF, and a steering committee member of ACP . Xiang has served as a Technical Program Co-Chair of OFC 2016, and a General Co-Chair of OFC 2018 .

Explorations of topological photonics in synthetic dimensions


Shanhui Fan Stanford Univ ., USA

Biography: Shanhui Fan is a Professor of Electrical Engineering, a Professor of Applied Physics (by courtesy), a Senior Fellow of the Precourt Inst . for Energy, and the Director of the Edward L . Ginz- ton Laboratory, at the Stanford Univ . . He received his Ph . D in 1997 in theoretical

condensed matter physics from the Massachusetts Inst . of Technology (MIT) . His research interests are in fundamental studies of solid state and photonic structures and devices, especially photonic crystals, plasmonics, and meta-materials, and applications of these structures in energy and information technology applications . He has published approximately 600 refereed journal articles, has given over 380 plenary/ keynote/invited talks, and was granted 69 US patents . His publications have been cited over 90,000 times according to Google Scholar . He has cofounded two companies aiming to commercialize high-speed engineering computations as well as radiative cooling technology respectively .

Prof . Fan received a National Science Foundation Career Award (2002), a David and Lucile Packard Fellowship in Science and Engineering (2003), the National Academy of Sciences W . O . Baker Award for Initiative in Research (2007), the Adolph Lomb Medal from Optica (2007), a Vannevar Bush Faculty Fellowship from the U . S . Department of Defense (2017), and a Simons Investigator in Physics (2021) .

He is a Thomson Reuters Highly Cited Researcher in Physics since 2015, and a Fellow of the IEEE, the American Physical Society, Optica, and the SPIE .

Photonic Chip based Frequency Combs


Tobias J. Kippenberg EPFL, Switzerland

Biography: Tobias J . Kippenberg is Full Professor in the Institute of Physics and Electrical Engineering at EPFL in Switzer- land since 2013 and joined EPFL in 2008 as Tenure Track Assistant Professor . Prior to EPFL, he was Independent Max Planck Junior Research group leader at the Max

Planck Institute of Quantum Optics in Garching, Germany . While at the MPQ he demonstrated radiation pressure cooling of optical micro-resonators, and developed techniques with which mechanical oscillators can be cooled, measured and manipulated in the quantum regime that are now part of the research field of Cavity Quantum Optomechanics . Moreover, his group discovered the generation of optical frequency combs using high Q micro-resonators, a principle known now as micro-combs or Kerr combs .

For his early contributions in these two research fields, he has been recipient of the EFTF Award for Young Scientists (2011), The Helmholtz Prize in Metrology (2009), the EPS Fresnel Prize (2009), ICO Award (2014), Swiss Latsis Prize (2015), as well as the Wilhelmy Klung Research Prize in Phys- ics (2015) and the 2018 ZEISS Research Award . Moreover, he is 1st prize recipient of the “8th European Union Contest for Young Scientists” in 1996 and is listed in the Highly Cited Researchers List of 1% most cited Physicists in 2014-2019 . He is founder of the startup LIGENTEC SA, an integrated photonics foundry .


Best Paper Award in Industry Innovation

ACP2021 is pleased to announce that this year’s Best Paper Award in Industry Innovation will be sponsored by Huawei

5 recipients, Huawei Pad for each

Any non-invited speaker, who is the first author as well as the presenting author of a paper submitted will be eligible for this award . Five papers focusing on industry and technology will be selected by the ACP2021 Committee . Certificates and Awards will be presented to the winners at the conference banquet and award ceremony .

Best Student Paper Award

ACP2021 is pleased to announce that this year’s Best Stu- dent Paper Award will be sponsored by Optica

8 recipients, $250 USD for each

Any full-time Univ . student, who is the first author as well as presenter of a paper submitted with choosing presentation type of “Best Student Paper Award” will be eligible for this award . Eight winners will be selected by the ACP2021 Committee . Certificates and Awards will be presented to the winners at the conference banquet and award ceremony .

Best Poster Award

ACP2021 is pleased to announce that this year’s Best Poster Award on ACP will be sponsored by Fiberhome .

15 recipients, XX for each

Any poster paper that is registered by at least one of the authors, presented during the assigned time slot will be eligible for this award . Certificates and Awards will be presented to the winners at the conference banquet and award ceremony .

Poster Session

Time: 15:30–18:00, Tuesday, 26 October

Location: Beijing Room, 2F, Pudong Shangri-La, Shanghai

Almost 370 posters will be displayed during ACP2021 . The poster session is designed to provide an opportunity for selected papers to be presented in greater visual detail and facilitate vivid discussions with attendees . Authors will remain in the vicinity of the bulletin board for the duration of the session to answer questions .

Student Events

Organizer

Haoshuo Chen, Nokia Bell Labs, USA

Wechat Study Group

This event is designed to help students expand their professional networks while at the conference . Attendees are encouraged to join the study group by technical interests before the conference .

Research topics include ：

1) Digital signal processing,

2) Software-defined network and network monitoring,

3) Space division multiplexing,

4) Microwave photonics,

5) Photonic integration .

2D barcodes for the wechat study groups can be found at ACP website .

(Link: http://www .acpconf .com/art .html?id=34)

During ACP2021, seminars will be arranged by each study group .

The study group will be maintained by the student volunteers after ACP2021 as a long-term study and information exchange platform .

Talking with industry leaders and distinguished researchers

This event is designed to help students gain personalized career insights and receive guidance from senior profession- als in photonics and optical communications . Students will get the opportunities to directly interact with the leaders and researchers . Please bring all your questions .

Speakers Student event 2: Talking with industry leaders and distinguished researchers Session 1: Monday (Oct. 25), 10:00-11:30 Presider:Prof. Nan Ye, Shanghai University Yunbo Li, Senior Engineer, Research Institution of China Mobile Sai Chen, Senior Network Engineer, Alibaba Group Jianqiang Li, Principal Network Engineer, Kuaishou Technology Cang Jin, Development Engineer, OFS Laboratories Binbin Guan, Senior Service Engineer, Microsoft Changyu Lin, Senior software developer, Bytedance Session 2: Monday (Oct. 25), 19:30-21:00 Presider:Prof. Bing Chen, Shanghai University Xiang Liu, Huawei Hong Kong Research Center, Xi Chen, Senior Technical staff, Nokia Bell Labs Shihuan Zou, Senior Global Business Development Manager, ADVA Optical Networking SE Guangwei Cong, Senior Researcher, National Institute of Advanced Industrial Science and Technology (AIST), Japan Paikun Zhu, Researcher, National Institute of Information and Communications Technology (NICT), Japan Leimeng Zhuang, R&D Team Leader, IMEC USA Qixiang Cheng, Asssitant Professor, University of Cambridge

http://www/


Workshop and Forums Workshops

Workshop 1: Microcavity Frequency Combs: from Physics to Applications

Workshop Time: 13:00–17:45, Sunday, 24 October

Venue: Qingdao Room, 2F

Organizers

Yunfeng Xiao, Peking Univ., China Baicheng Yao, Univ. of Electronic Science and Technology of China, China Heng Zhou, Univ. of Electronic Science and Technology of China, China

Description: Microcavity frequency combs is a hot frontier of photonic physics and a significant direction of optical technology in recent years. Its R&D will lead the future developments of wide applications ranging from integrated optics, precision measurements, astronomical observation, ultrafast communication, to smart sensing. In this workshop, we share the cutting-edge advances, enhance and broaden the combination of science and techniques of microcombs.

Speakers:

Presider: Baicheng Yao, Univ. of Electronic Science and Technology of China, China

13:00–13:25 Chee Wei Wong, Univ. of California at Los Angeles, USA Topic: Microcavity frequency combs: precision ultrafast measurements and stabilization

13:25–13:50 Xu Yi, Univ. of Virginia, USA Topic: Microcavity frequency combs in deterministic quantum regime

13:50–14:15 Shu-Wei Huang, Univ. of Colorado at Boulder, USA Topic: Photonic frequency comb based on dissipative qua- dratic soliton

14:15–14:40 Qi-Fan Yang, Peking Univ., China Topic: Fundamental coherence of optical microcombs

14:40–15:05 Wei-Qiang Xie, Shanghai Jiao Tong Univ., China

Topic: Ultralow-loss AlGaAs nanophotonics for low-power and scalable nonlinear photonics integrated circuits 15:05–15:20 Coffee Break

Presider: Heng Zhou, Univ. of Electronic Science and Tech- nology of China, China

15:20–15:45 Lin Chang, Peking Univ., China Topic: Ultra-narrow linewidth lasers and microcombs based on self-injection locking in integrated photonics

15:45–16:10 Benbo Xu, Huawei Ltd. Co, China. Topic: Recent progress in multi-wavelength laser source solutions

16:10–16:35 Pacal Del’Haye, Max Plank Inst., Germany Topic: TBD

16:35–17:00 Victor Torres Company, Univ. of Chalmers, Sweden

Topic: Microresonators frequency combs in optical communications: challenges and opportunities

Presider: Yunfeng Xiao, Peking Univ., China

17:00–17:45 Plenary discussion

Workshop 2: Space-division Multiplexing (SDM)


Venue: Shenyang Room, 2F

Organizers Georg Rademacher, National Inst . of Information and Com- munications Technology, Japan Rui Zhou, Huawei, China Juan Carlos Alvarado-Zacarias, Univ . of Central Florida, USA

Description: Space division multiplexing (SDM) in multimode and multi-core fibers has been a major topic in optical fiber communications research since the beginning of the last decade . SDM research aims at exploiting spatial diversity in optical transceivers, fibers, amplifiers, routers etc . to in-

crease the per-link transmission capacity while reducing cost, complexity, and eventually energy consumption .

This workshop intends to gather experts in the field to establish an overview of the current state of SDM research with a focus on:

• Integrated transceivers and components for SDM

• Advances in SDM fiber design, modeling and analysis of novel propagation effects

• An industry perspective on SDM

The workshop further aims at stipulating an open discussion between panelists and attendees on the challenges and opportunities envisaged in the deployment of massive parallel transmission systems .

Speakers:

Presider: Rui Zhou, Huawei, China

14:00–14:15 Shikui Shen, China Unicom, China Topic: China Unicom’s view on SDM technology

14:15–14:30 Tobias Fehenberger, ADVA Optical Network- ing, Germany Topic: Integration in Space Division Multiplexed Systems: A Key Element to Commercial Success

14:30–14:45 Lin Zhang, Tianjin Univ ., China Topic: SDM transmission systems and key devices

14:45–15:00 Juhao Li, Peking Univ ., China Topic: Weak coupling FMF transmission systems

15:00–15:15 Lei Shen, YOFC, China Topic: Challenges and solutions of SDM fiber in practical application

15:15–15:30 Pierre Sillard, Prysmian, France Topic: Advances in few-mode fiber design for SDM

15:30–15:45 Pandelis Diamantopulus, NTT, Japan Topic: Integrated Directly-Modulated Membrane Laser Transmitters for Short-Reach SDM Links

15:45–16:00 Coffee Break

ACP 2021 • 24 October 2021–27 October 2021 • Page

Presider: Georg Rademacher, National Inst . of Informa- Speakers: Workshop 4: AI Meets Photonics

tion and Communications Technology, Japan & Juan Carlos Alvarado-Zacarias, Univ . of Central Florida, USA

16:00–16:15 Guilhem de Valicourt, Nubis Communications, USA Topic: Highly parallel integrated transceivers

16:15–16:30 Nick Fontaine, Nokia Bell Labs, USA Topic: Multi-mode EDFAs

16:30–16:45 Rio Nagase, Chiba Inst . of Technology, Japan Topic: Connector technologies for MCF

16:45–17:00 Cristian Antonelli, Univeristy de l’Aquilla, Italy Topic: Modelling of crosstalk in MCF

17:00–17:15 Peter Krummrich, TU Dortmund, Germany Topic: Mode coupling in high mode count MMF

17:15–17:30 Ruby SB Ospina, Univ . of Campinas, Brazil Topic: MDL estimation in SDM transmission experiments

17:30–17:45 Kazunori Mukasa, Furukawa Electric, Japan Topic: Ultra-high core count MCF

Workshop 3: Novel Routines from Fibres to Transceivers


Venue: Wuxi/Guilin Room, 3F

Organizers Liangming(Ansion) Xiong, State Key Laboratory of Optical Fiber and Cable Manufacture Technology, China Weisheng Hu, Shanghai Jiao Tong Univ., China

Junjie Li, China Telecom Research Inst., Beijing, China

Description: Telecom operators and Internet companies are particularly sensitive to the price and ease of use of high- speed connection solutions or routines of optical transmission. To design and develop novel routines or solutions for access or datacenter optical networks at a low cost is very important and necessary in industry. This workshop will give some representative routines, involving in optical fiber, interconnects, IC and optical chips or components, tunable DBR lasers, transcerivers, and DCI or access network solutions.

Presider: Weisheng Hu, Shanghai Jiao Tong Univ., China

13:45–14:08 Junjie Li, China Telecom Research Inst., Bei- jing, China

Topic: Chance and Challenge of 400Gb/s WDM in Backbone and Metro Networks

14:08-14:31 Yi Yu, Huawei Technologies Co., LTD. Topic: Capacity and Flexibility Improvement for Next Gen- eration Fixed Optical Networks

14:31-14:54 Sai Chen, Alibaba Group Topic: High-speed Datacenter Optical Networks

14:54-15:17 Lei Zhang, State Key Laboratory of Optical Fiber and Cable Manufacture Technology, YOFC, China Topic: New Optical Fiber Connection Solutions for Datacen- ter

15:17-15:40 Qunbi Zhuge, Shanghai Jiao Tong Univ., China Topic: Capacity-approaching Design of Coherent Optical transceiver

15:40-15:50 Coffee Break

Presider: Junjie Li, China Telecom Research Inst., Beijing, China

15:50-16:13 Honglin Ji, The Univ. of Melbourne, Australia Topic: Advanced Optical Receivers for High-capacity Optical Interconnects

16:13-16:36 Ivan Zheng, Innolight Technology (Suzhou) LTD.

Topic: TBD

16:36-16:59 Song Liang, Inst. of Semiconductors, Chinese Academy of Sciences

Topic: High-speed Widely Tunable InP Based DBR Lasers

16:59-17:22 Hui Wang, Sitrus Technology, Shanghai, China Topic: IC Design Challenges for PAM4 Optical Interconnects

17:22-17:45 Liangbo Wang, Yuanjie Semiconductor Technology, Co., Ltd, China

Topic: InP Laser Status and Challenge for High Speed Optical Communication

Presider: Liangming(Ansion) Xiong, State Key Laboratory of Optical Fiber and Cable Manufacture Technology, China

Workshop Time: 08:00–12:25, Sunday, 24 October Venue: Dalian Room, 2F Organizers Weiwen Zou, Shanghai Jiao Tong Univ ., China Shuiying Xiang, Xidian Univ ., China Jianji Dong, Huazhong Univ . of Science and Technology, China Hongwei Chen, Tsinghua Univ ., China

Description: The emerging brain-inspired AI technologies may outperform the traditional von Neumann computing scheme for some certain tasks, especially with the computation-burden tasks, e .g ., image recognition, audio processing, deep learning, and much more .

The intersection of AI and photonics is now burgeoning for a new computing paradigm . It can combine both neurosci- ence information-processing capacity and unique properties of photonics, may offer a promising candidate to address the ever-growing computing-consuming scenarios with much lower power consumption .

This workshop shall shed light on how such merits can be combined, when such solutions may be affordable, and what advantages could be offered . Furthermore, current bottle- necks and technological limits shall be discussed . Especially, the workshop shall address such topics:

1 . photonic feedforward neural network;

2 . photonic convolutional neural network;

3 . photonic neuromorphic computing;

4 . photonic spiking neural network;

5 . photonic reservoir computing;

6 . Photonic ising machine;

7 . Diffractive optical neural network .

Speakers:

Presider: Shuiying Xiang, Xidian Univ ., China

08:00–08:25 Shaofu Xu, Shanghai Jiao Tong Univ ., China Topic: Architecture design and chip fabrication of optical convolutional neural networks


08:25-08:50 Ye Tian, Chongqing United Microelectronics Workshop 5: Nonlinearity Compensation or 15:00–15:20 Zhipei Li, Beijing Inst . of Technology, China

Center (CUMEC),China Topic: Artificial Intelligence empowered by Silicon photonic: engineering opportunities and challenges

08:50-09:15 Chaoran Huang, The Chinese Univ . of Hong Kong, China Topic: Silicon photonic neural networks for high-speed signal processing

09:15–09:40 Zengguang Cheng, Fudan Univ ., China Topic: Photonic memory and computing based on phase- change materails

09:40-10:05 Yahui Zhang, Xidian Univ ., China Topic: Photonic spiking neuron based on VCSELs: theory and experiment


Presider: Jianji Dong, Huazhong Univ . of Science and Tech- nology, China

10:20-10:45 Chao Qian, Zhejiang Univ ., China Topic: Deep learning for dynamic perception and self-adpa- tive invisibility cloak

10:45–11:10 Xingyuan Xu, Monash Univ ., Australia Topic: 11TOPS photonic convolution accelerator based on microcombs

11:10-11:35 Bing Bai, Photoncounts co .ltd/Beijing Jiaotong Univ ., China Topic: Photonic computing chip for nonlinear distortion compensation in optical communication system

11:35-12:00 Jiamin Wu, Tsinghua Univ ., China Topic: Opportunities and challenges for practical applications of optical neural network

Presider: Weiwen Zou, Shanghai Jiao Tong Univ ., China & Hongwei Chen, Tsinghua Univ ., China


Advanced Coded Modulation Schemes to Achieve Fibre’s Ultimate Transmission Limit?


Venue: Shanghai Room, 2F

Organizers

Bin Chen, Hefei Univ . of Technology, China Gabriele Liga, Eindhoven Univ . of Technology, Netherlands Lin Sun, The Hong Kong Polytechnic Univ ., China

Description: Optical fibre transmission capacity is still un- known . However, what we know for sure is that fibre capacity is theoretically achievable using forward error correction in combination with one of these two alternative approaches: i) nonlinearity compensation (NLC); ii) coded modulation . Digital nonlinearity compensation schemes have proven to be extremely effective when it comes of suppressing nonlinear distortions on the received signal, but is limited by high computational complexity . On the other hand, nonlinearity- tailored coded modulation schemes can be in general implemented with a lower complexity than NLC but they have not so far yielded dramatic information rates improvements . The question is then which of these two approaches is more effective in terms of performance-complexity tradeoff?

In this workshop, speakers will share their views on the future of approaching capacity and the prospects of performance- complexity tradeoff for optical fibre communication system .

Speakers:

Presider: Bin Chen, Hefei Univ . of Technology, China

14:00–14:20 Christian Häger, Chalmers Univ . of Technol- ogy, Sweden Topic: Reducing the complexity of digital backpropagation with machine learning

14:20-14:40 Stella Civelli, Scuola Superiore Sant’Anna, Italy Topic: Tailored Shaping, Improved Detection, Simpler Back- propagation: the Road to Nonlinearity Mitigation

14:40-15:00 Yukui Yu, HiSilicon, China Topic: Implementation aspects of nonlinear equalizer for IM/ DD systems

Topic: Machine learning based DSP techniques for probabilistically shaped signals maximizing GMI

Presider: Lin Sun, The Hong Kong Polytechnic Univ ., China

15:20-15:30 Plenary discussion


Presider: Gabriele Liga, Eindhoven Univ . of Technology, Netherlands

15:45–16:05 Kaiquan Wu, Eindhoven Univ . of Technology, Netherlands Topic: Temporal shaping and high-dimensional modulation for fiber nonlinear mitigation

16:05-16:25 Mengfan Fu, Shanghai Jiao Tong Univ ., China Topic: Nonlinearity-tolerant probabilistic shaping in optical coherent transmissions

16:25-16:45 Metodi Yankov, Technical Univ . of Denmark, Denmark Topic: Block error detection driven nonlinearity compensation for optical fiber communications

16:45–17:05 Yi Lei, Hefei Univ . of Technology, China Topic: Hybrid hard/soft decision staircase decoding for low- cost high-speed optical transmission

Presider: Lin Sun, The Hong Kong Polytechnic Univ ., China

17:05-17:20 Plenary discussion

Workshop 6-7: Biophotonic Imaging Roadmap 2021


Venue: Changchun Room, 2F

Organizers Peng Xi, Peking Univ., China Xunbin Wei, Peking Univ., China Junle Qu, Shenzhen Univ., China

Description: In the 21st century, biomedical imaging presents a series of new development trends: breaking the diffraction limit, high-speed, deep three-dimensional, label- free imaging. In association with other novel technologies such as multi-modality probes, new light sources, detectors, lightfield manipulation, computational imaging, and other


Speakers:

related technologies, biophotonic imaging provides new solutions and insights for many applications.

Arising from asking questions to analyzing questions, this workshop will give examples of the cutting-edge biological imaging technologies and their applications, and discuss how we can expand the application of biological photonics imaging in interdisciplinary fields with these new tools. In the meantime, we will address how biophotonics field can better respond to our national calls, to solve the challenging international or regional life science and medicine problems.

Speakers:

Presider: Xunbin Wei, Peking Univ., China

09:00–09:30 Peng Xi, Peking Univ., China Topic: Super-resolution: an adventure on a new dimension

09:30–10:00 Ming Lei, Xi’an Jiaotong Univ., China Topic: Multi-color structured illumination microscopy for live cell imaging based on the enhanced image recombination transform algorithm 10:00–10:15 Coffee Break

10:15–10:45 Liwei Liu, Shenzhen Univ., China Topic: Multimodal optical microscopic imaging technology and its biomedical applications

10:45–11:15 Guohua Shi, Suzhou Inst. of Biomedical Engi- neering and Technology Chinese Academy of Science, China Topic: TBD

11:15–14:00 Lunch Break

Presider: Junle Qu, Shenzhen Univ., China

14:00–14:30 Xunbin Wei, Peking Univ., China Topic: TBD

14:30–15:00 Sihua Yang, South China Normal Univ., China Topic: Photoacoustic imaging: medical transformation from small animals to humans


15:15–15:45 Chao Tian, Univ. of Science and Technology of China, China

Topic: Biomedical photoacoustic computed tomography

15:45–16:15 Ke Si, Zhejiang Univ., China Topic: Deep tissue optics imaging and its applications

Presider: Peng Xi, Peking Univ., China

16:15–16:45 Plenary discussion Workshop 8-9: Heterogeneous Photonic Integration on Silicon


Venue: Beijing Room, 2F

Organizers Liu Liu, Zhejiang Univ ., China Xinlun Cai, Sun Yat-sen Univ ., China Hon-Ki Tsang, The Chinese Univ . of Hong Kong, China

Description: Silicon has become the platform of choice for large-scale photonic integration . Its compatibility with the mature CMOS processing technology offers the well-known advantages of scalability, low-cost at high-volume, and high yield . Despite its success during the last 20 years in both academia and industry, further improvement on functionalities and performances of silicon photonic circuits beyond the limitations posed by the intrinsic material capabilities of silicon is needed for photonics . Improvements in silicon photonics for efficient light generation, optical amplification, high-speed and efficient optical modulation, low-noise high quantum-efficiency high-speed photodetectors, nonlinear photonic devices and integrated quantum photonic applications may be brought about with the use of different materials integrated on silicon . Heterogeneous integration technology can bring together silicon and other materials with better optical properties . Combining the best of different material systems, it holds the potential to realize full functioning photonic circuits . This workshop will focus on recent advances and future developments of heterogeneous photonic integration on silicon in all related aspects including fabrication processes, discrete devices, integration technologies, novel two-dimensional materials on silicon etc .

Presider: Xinlun Cai, Sun Yat-sen Univ ., China

9:00–9:20 Bowen Song, UC Santa Barbara, USA Topic: Heterogeneous Integration by Direct Epitaxy on Sili- con: Lasers and Photodetectors

9:20-9:40 Yuan Yuan, Hewlett Packard Labs, USA Topic: Energy-Efficient Silicon Photonics with Heterogeneous Integration

9:40-10:00 Siming Chen, University College London, UK Topic: Roadmap of Monolithic III-V Quantum Dot Laser in Silicon Photonics


10:15–10:35 Kei-May Lau, Hong Kong Univ . of Science and Technology, China Topic: Heterogenous epitaxy on silicon for lasers and photodetectors

10:35-10:55 Weihua Guo, Huazhong Univ . of Science and Technology, China Topic: A potential new way for the hybrid integration of the laser and silicon waveguide

10:55-11:15 Gunther Roelkens, Ghent Univ ., Belgium Topic: micro-transfer printing for heterogeneous silicon photonic integrated circuits


Presider: Liu Liu, Zhejiang Univ ., China

13:50-14:10 Huan Li, Zhejiang Univ., China Topic: Integrated Acousto-Optics on Thin-Film Lithium Niobate

14:10-14:30 Xinjun Wang, Peking Univ ., China Topic: Si-III-V comb and system application

14:30 14:50 Xiaoxiao Xue, Tsinghua Univ ., China Topic: High-efficiency microcomb generation and applications

14:50-15:10 Linjie Zhou, Shanghai Jiao Tong Univ ., China Topic: Nonvolatile optical control using phase change material on silicon



15:25-15:45 Yi Wang, The Chinese Univ . of Hong Kong, 14:25-14:50 Ke Li, Univ . of Southampton, UK key is negotiated through quantum channel, continues its

China Topic: Hybrid 2D materials for photonic integration

15:45–16:05 Zhichao Ye, Chalmers Univ . of Technology, Sweden Topic: Ultralow-loss Si3N4 waveguides for nonlinear optics

16:05-16:25 Buwen Cheng, Institiute of Semiconductor, CAS, China Topic: Ge active photonic devices on Si substrate

16:25-16:55 Plenary discussion Workshop 10: Co-integration of Photonics and Electronics


Venue: Dalian Room, 2F

Organizers Yikai Su, Shanghai Jiao Tong Univ ., China Beiju Huang, Inst . of Semiconductors, CAS, China

Description: Co-integration of photonics and electronics has received considerable attention in recent years for the advantages of shrunk footprint, lower cost, and reduced power consumption . Silicon photonics is a platform on which photonics and electronics can be integrated, by leveraging standard fabrication processes in the microelectronics industry . This workshop will provide an open forum for speakers and audience to discuss the possible technologies to merge photonics and electronics on chip and forecast potential applications . We will first review the current status of co-integration with an emphasis on monolithic integration on silicon . Then we will talk about the desired performance metrics of building blocks, required fabrication processes, and mass production issues . Finally we will brain storm the possible roadmap for future technology development and the emerging applications .

Speakers:

Presider: Yikai Su, Shanghai Jiao Tong Univ ., China

14:00–14:25 Xu Wang, Lumerical, Canada Topic: Co-design of photonics and electronics

Topic: Electronic-photonic convergence for 100+Gb/ silicon photonics transmitters

14:50-15:15 Shuren Hu, Aurora Innovations Inc ., Sweden Topic: Integration choices in silicon photonics coherent LiDAR


Presider: Beiju Huang, Inst . of Semiconductors, CAS, China

15:30–15:55 Xi Xiao, Wuhan research Inst . of post and telecommunications, China Topic: What is the better choice for photonics-electronics integration? Chiplet or monolithic OEIC?

15:55–16:20 Min Tan, Huazhong Univ . of Science and Tech- nology, China Topic: Integration methods for scalable feedback control of multiple photonic parameters: key challenges and recent advances

16:20–16:45 Nan Qi, Inst . of Semiconductors, CAS, China Topic: Monolithic integration – a bumpy way to make silicon photonics more electrical

16:45–17:15 Zan Zhang, Chang An Univ ., China Topic: 3D integration of photonics and electronics through CMOS backend process

Presider: Yikai Su, Shanghai Jiao Tong Univ ., China & Beiju Huang, Inst . of Semiconductors, CAS, China

17:15–17:45 Plenary discussion Workshop 11: Light: Science & Application workshop in Quantum Photonics


Venue: Shanghai Room, 2F

Organizers

Guilu Long, Tsinghua Univ ., China Lajos Hanzo, Univisity of Southampton, UK Yuhong Bai, Changchun Inst . of Optics, Fine Mechanics and Physics, CAS, China

Description: Photonics is vital in quantum information processing . While quantum key distribution (QKD), where secret

strong momentum and fast development, quantum secure direct communication (QSDC), where secret information is transmitted directly through quantum channel, is witnessing a transformation from a mere theoretical scheme to a fully developed practical protocol . Sponsored by the world- leading optical journal, Light, Science & Applications, the quantum photonics workshop features seven invited talks on the recent progress in QKD, QSDC and photonic chip for scalable quantum information processing . A 15–user quantum networks with QSDC, and the world first experimental endeavor to study the feasibility of QKD and QSDC from the 36000 km SJ-20 geosynchronous orbit satellite will be reported in the workshop . Important issues of quantum communication within the larger arena of the communication world will be touched in the workshop .

Speakers:

Presider: Guilu Long, Tsinghua Univ ., China

09:00–09:25 Xianfeng Chen, Shanghai Jiao Tong Univ ., China Topic: A 15–user quantum secure direct communication network

09:25–09:50 Yuan-Xing Liu, Beijing Inst . of Aerospace Con- trol Devices, China Topic: Transmission of photonic polarization states from geosynchronous Earth orbit satellite to the ground

09:50–10:15 Hong-xin Li, Strategic Support Force Informa- tion Engineering Univ ., China Topic: A Scheme of Quantum Secure Direct Communication Based on 4-Dimension Hilbert Space by Mixing Bell State Particles and Single Photons

10:15–10:40 Gui-Lu Long, Tsinghua Univ ./BAQIS, China Topic: Long-distance high-throughput quantum secure direct communication


Presider: Yuhong Bai, Changchun Inst . of Optics, Fine Me- chanics and Physics, CAS, China

10:55–11:20 Xian-Min Jin, Shanghai Jiao Tong Univ ., China Topic: 3D photonic chip for scalable quantum information processing


search regarding OXC/ROADM, multiband optical transmis- 11:20–11:45 Adrian Wonfor, Univ. of Cambridge, UK

Topic: Quantum Networks in the UK

11:45–12:15 Lajos Hanzo, Univ. of Southampton, UK Topic: TBA

Presider: Lajos Hanzo, University of Southampton, UK


Industry Fourms

Forum1: All optical service networks for F5G

Time: 8:30–12:35, Sunday, 24 October

Venue: Nanjing Room, 3F

Organizers

Xiang Liu, Huawei Hong Kong Research Center, China

Yongli Zhao, Beijing Univ. of Posts and Telecommunications, China Yi Lin, Huawei, China

Description: F5G is the 5th generation fixed networks, which can support the 5th generation wireless networks. Low latency, massive connections, full fiber connection are the main features of F5G. There are mainly two parts in F5G, which are access networks and core networks. All optical service network is a new network prototype for F5G core networks. There are many challenges and opportunities for all optical service network in the near future. In this workshop, some famous experts from academic and industry will be invited to give some interesting topics, which includes the service requirement, network architecture, enabled protocols, routing algorithms, and so on.

Speakers:

Presider: Yongli Zhao, Beijing Univ. of Posts and Telecom- munications, China

08:30-08:50 Haiyi Zhang, CAICT, China

Topic: TBD

08:50–09:10 Ming Jiang, ISG F5G & China Telecom, China Topic: Introduction of ETSI ISG-F5G Standards

09:10–09:30 Han Li, China Mobile, China Topic: Fronthaul Technologies in 5G

09:30–09:50 Guangquan Wang (or others), China Unicom, China Topic: TBD

09:50–10:10 Ruiquan Jing, China Telecom, China Topic: Advances in OSU-OTN


Presider: Yi Lin, Huawei, China

10:25–10:45 Raouf Boutaba, Univ. of Waterloo, Canada Topic: Elastic Optical Network (EON) slicing technologies

10:45–11:05 Lei Wang, Alibaba, China Topic: AONA: a data analytics platform for operation of datacenter optical networks

11:05–11:25 Nan Hua, Tsinghua Univ., China Topic: Low-latency metro-access converged networks based on all-optical time slicing technology

11:25–11:45 Zuqing Zhu, China Univ. of Science and Tech- nology, China

Topic: DRL-assisted Light-tree Reconfiguration for Dynamic Multicast in Elastic Optical Networks

11:45–12:05 Yongli Zhao, Beijing Univ. of Posts and Tele- communications, China

Topic: Framework and Key Technologies of Deterministic Full-Fibre Service Network (DFSN) for F5G

Presider: Xiang Liu, Huawei Hong Kong Research Center, China


Forum2: Next-generation optical switching and transmission technologies for F5G and beyond


Venue: Nanjing Room, 3F

Organizers

Gangxiang Shen, Soochow Univ ., China Ning Deng, Huawei, China

Vittorio Curri, Politecnico di Torino, Italy

Description: There are many issues and challenges in the F6G-oriented next-generation optical switching and transmission technology to be explored . This workshop attempts to provide an overview of the state of the art of current re-


11:20–11:45 Richard Penty, (Dr . Adrian Wonfor) Univ . of search regarding OXC/ROADM, multiband optical transmis-

sion, 400G and beyond transmission, issues on ultra-low loss fibers, and so on . We will specifically pay attention to many important research topics, including C+L-band optical channel signal quality estimation, optical amplifier placement in multi-band transmission system, novel fiber and optical amplifier, large-scale OXC/ROADM, and low-cost ROADM . We aim to encourage an open discussion on the challenges and opportunities of next-generation optical switching and transmission technologies and help construct low-cost high- performance F6G .

Speakers

Presider: Ning Deng, Huawei, China

14:00–14:25 Tianhai Chang, Huawei Technologies, China Topic: New opportunities for PON technology evolution in the F5G era

14:25–14:50 Yi Cai, Soochow Univ ., China Topic: The key to unlock all information carriers for F5G and beyond: optical coherent DSP

14:50–15:15 Fan Zhang, Peking Univ ., China Topic: Fiber nonlinearity mitigation in high-speed coherent optical transmission systems

15:15–15:40 Haining Yang, Southeast Univ ., China Topic: Technology challenges and evolution of state-of-the- art LCoS and WSS


Presider: Vittorio Curri, Politecnico di Torino, Italy

15:55–16:20 Yiran Ma, Finisar, Australia Topic: Novel architecture and technologies for OXC/ROADM towards large-scale and low-cost optical networking

16:20–16:45 Maxim Kuschnerov, Huawei Technologies, Germany Topic: Issues and opportunities for 800G and beyond optical transmission in F6G

15:45–17:10 Alex Donodin, Aston Univ ., UK Topic: Doped-fiber amplifiers beyond the C+L band

17:10–17:35 Nicola Calabretta, Eindhoven Univ . of Tech- nology, Netherlands

Topic: Optical switching technologies in multi-band networking


17:35-18:00 Giacomo Borraccini, Politecnico di Torino, Italy 13:45–14:10 Yunbo Li, China Mobile, China

Topic: Autonomous optical line control in disaggregated networks

Presider: Gangxiang Shen, Soochow Univ ., China

18:00–18:30 Plenary discussion Forum3: Future artificial intelligence optical network toward 2030: technologies and applications


Venue: Kaifeng Room, 3F Organizers

Bin Zhang, Fiberhome Telecommunication Technologies Co ., LTD, China Jianxin Lv, Fiberhome Telecommunication Technologies Co ., LTD, China Liwei Kuang, FiberHome Telecommunication Technologies Co ., LTD, China

Description: Optical network has been evolving into intelligent communication infrastructure with four distinguished characteristics, namely massive connection, broad band, on- demand service, as well as opening capability . Nowadays, advanced technologies such as optical cross connection (OXC), optical service unit (OSU), artificial intelligent (AI), digital twin (DT) are utilized in optical network, and hence efficiently enhance the functionalities and performances . This forum presents frontier studies, novel approaches, application scenarios, future prospect of intelligent optical network . Experts from telecommunication service provides, research Inst .s, manufactures, universities will provide excellent speeches . You are welcome to join us and discuss relevant research progress . In this forum, for each invited presentation, the time is 20 minutes including 5 minutes for questions and answers .

Speakers

Presider: Liwei Kuang, FiberHome Telecommunication Technologies Co ., LTD, China

13:30–13:45 Welcome Speech (Zhiwen Fan, Vice Execu- tive, Fiberhome Telecommunication Technologies Co ., LTD, China)

Topic: Building a Three-Dimensional Heterogeneous Optical Communication Network with the help of Artificial Intel- ligence

14:10–14:35 He Zhang, China Unicom, China Topic: Application of Artificial Intelligence in Optical Net- work

14:35–15:00 Quan Cao, Wuhan Feisiling Microelectronics Technology Co ., Ltd, China Topic: Opportunities and Challenges of Optical Modules and Devices in Coherent Optical Transmission Systems”

15:00–15:25 Anran Xu, FiberHome Telecommunication Technologies Co ., LTD, China Topic: Recent Studies of Intelligent Optical Network: Theo- retical Breakthrough, Technology Innovation, and Applica- tion Scenarios .


Presider: Jianxin Lv, Fiberhome Telecommunication Tech- nologies Co ., LTD, China

15:40–16:05 Jian Wu, Beijing Univ . of Posts and Telecom- munications, China Topic: DSP Enhanced PAM Systems for Short-reach Optical Communications

16:05–16:30 Xiaoping Zheng, Tsinghua Univ ., China Topic: The Precise Perception for Future Intelligent Optical Network

16:30–16:55 Yajie Li, Beijing Univ . of Posts and Telecommu- nications, China Topic: Resource Orchestration and Service Provisioning in Cloud-Network Integration

16:55–17:25 Hongtao Guan, Inst . of Computing Technol- ogy, Chinese Academy of Science, China Topic: Challenges and Methods of Realizing Traditional Inter- net Middlebox by NFV

Presider: Bin Zhang, Fiberhome Telecommunication Tech- nologies Co ., LTD, China


Forum4: Silicon Photonics Integration for beyond 800G Pluggable and Co-Packaged Optics applications: Opportunities and Challenges Organizers Zhiping Zhou, Peking Univ., Shanghai Institute of Optics Fine Mechanics, China Hua Zhang, LUSTER LightTech Co. Ltd., China Description: This is the seventh time for Luster LightTech Co., Ltd. to organize the ACP Industry forum. This year's industry forum will focus on Silicon Photonics(SiP) Integration. Distinguished speakers from the industry will discuss the latest advances and marketing trends of the SiP integration. Some key aspects to be addressed in this forum will be included but not limited to the following: What are the key challenges on 800G and beyond low power/cost solutions for intra-DC applications? What will be optimal schemes for Silicon Photonics Integration? Hybrid Integration, Heterogeneous III-V-on-Silicon Photonic Integration, …? Will Co-Packaged Optics (CPO) be a nice-to-have or must-have solution within 3~5 years? … Speakers Presider: Zhiping Zhou, Peking Univ., Shanghai Institute of Optics Fine Mechanics, China 09:00–09:10 Welcome Speech 09:10–09:30 Chongjin Xie, Alibaba, China Topic: When Do We Need Co-Packaged Optics in Data Center Networks? 09:30–09:50 Yibo Liang, HiSilicon Optoelectronics Co., Ltd., China Topic: on Next Generation Data Center Optical Modules & Optical Devices 09:50–10:10 Glenn Li, Skorpios Technologies, Inc., US

Topic: A Large–Scale Heterogeneous Photonics Integration Platform for Next–Generation


Communication Products 10:10–10:30 Junbo Feng, CUMEC, China Topic: Challenges in CPO and Integrated Silicon Photonics Technology 10:30–10:40 Coffee Break Presider: Hua Zhang, LUSTER LightTech Co. Ltd., China 10:40-11:00 Jiansheng Feng, Tencent, China Topic: Optical Interconnection for the 5-th Paradigm 11:00–11:20 Hua Zhang, Hisense Broadband Multimedia Technologies Co., Ltd., China Topic: Enabling technologies for 800G and beyond transceivers 11:20-11:40 Ben Chen, Hengtong Rockley Technology, China Topic: The opportunities and Challenges of Silicon Photonics for Intra-DC application 11:40-12:00 Xuerui Sun, Great China Region and Korea, EXFO Topic: The challenges of PIC component from R&D to mass production and cutting edge testing solution Presider: Zhiping Zhou, Peking Univ., Shanghai Institute of Optics Fine Mechanics, China 12:00–12:30 Plenary discussion


ACP 2021 — Agenda of Sessions

Sunday, 24 October Qingdao Room,

2F Shenyang Room,

2F Dalian Room,

2F Changchun Room, 2F

Beijing Room, 2F

Shanghai Room, 2F

Wuxi/Guilin Room, 3F

Nanjing Room, 3F

Guilin Room, 3F

08:30–18:00 Registration, Lobby

09:00–12:00 Workshop: AI Workshop: Workshop: Worksho: Forum: Silicon Photonics Integration for beyond 800G Pluggable and Co-Packaged Optics applications: Opportunities and Challenges (ends 12:30)

Forum: All Optical

Meets Photonics Biophotonic Heterogeneous Light: Science Service Networks (08:00–12:25) Imaging Roadmap Photonic & Application for F5G 2021 Integration on Workshop in (8:30–11:45) (ends 11:45) Silicon Quantum Photonics (ends 11:45) (ends 12:35)

12:00–14:00 Lunch Break, Yi Café, 2F, Grand Tower

14:00–18:00 Workshop: Workshop: Workshop:Co- Workshop: Workshop: Workshop: Workshop: Forum: Next- Forum: Future Microcavity Space-division Integration of Biophotonic Heterogeneous Nonlinearity Novel Routines Generation Optical Artificial Frequency Combs: Multiplexing (SDM) Photonics and Imaging Roadmap Photonic Compensation from Fibres to Switching and Intelligence Optical From Physics to (ends 17:45) Electronics 2021+Panel Integration on or Advanced Transceivers Transmission Network Toward Applications (ends 18:20) Discussion Silicon Coded Modulation (ends 17:57) Technologies for 2030: Technologies (begins at 13:00) (ends 16:45) (13:50-16:55) Schemes to F5g And Beyond and Applications Achieve Fibre’s (ends 17:40) (13:30–17:55) Ultimate Transmission Limit? (ends 15:20)

Agenda of Sessions



Monday, 25 October

Nanjing Room I & II, 3F

Track 1

Changan Room, 3F Track 2

Guilin Room, 3F

Track 3

Kaifeng Room, 3F

Track 4

Suzhou Room, 3F

Track 5

Wuxi Room, 3F

Track 6

Hangzhou Room, 3F Track 7

Luoyang Room, 3F Track 2

Nanjing Room III, 3F Best Student

Papers

Grand Ballroom Foyer, 3F


Conference Exhibition

08:30-08:45 Opening Ceremony, Grand Ballroom, 3F, River Wing

08:45–10:05 M1A • Plenary Session I, Grand Ballroom, 3F, River Wing

10:05–10:35 M2A • Poster Preview, Grand Ballroom Foyer, 3F Coffee Break, Grand Ballroom Foyer, 3F

Exhibition, Grand Ballroom Foyer, 3F

10:35–11:55 M3A • Plenary Session II, Grand Ballroom, 3F, River Wing


13:30–15:30 M4A • Advances in Quantum & Classical Light Sources

M4B • SDM Transmission

M4C • Optical Security and QKD

M4D • Novel Integrated Photonics

M4E • Photonic AI I

M4F • Perovskite PV I

M4G • Optical Cancer Imaging

M4H • Real-time Transmission and Quantum Communications

M4I • Best Student Papers I

15:30–16:00 Coffee Break & Exhibition, Grand Ballroom Foyer, 3F

16:00–18:00 M5A • Microstructured & Nano Fibers

M5B • Optical Wireless Transmission Systems

M5C • Open and Disaggregated Optical Networks

M5D • Optoelectronics Devices I

M5E • Terahertz Photonics

M5F • Thin Film PV

M5G • Optical Spectral Imaging Techniques

M5H • Machine Learing for Optical Communication

M5I • Best Student Papers II

18:30–21:30 Welcome Reception, Yi Café, 2F, Grand Tower

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Tuesday, 26 October

Nanjing Room I & II, 3F

Track 1


Guilin Room, 3F

Track 3

Kaifeng Room, 3F

Track 4

Suzhou Room, 3F

Track 5

Wuxi Room, 3F

Track 6



Nanjing Room III, 3F Best Student

Papers




08:30–10:00 T1A • Fiber Devices & Applications

T1B • High- Capacity Transmission Systems

T1C • Control Technology of Future Optical Networks

T1D • Silicon Photnoics I

T1E • Photonic AI II

T1F • Perovskite PV II

T1G • Novel Optical Imaging Techniques

T1H • Coherent Transceivers and Transmission

T1I • Best Student Papers III

10:30–11:00 Coffee Break & Poster Preview & Exhibition, Grand Ballroom Foyer, 3F

10:30–12:00 T2A • OAM in Fibers

T2B • Machine Learning in Optical Networks

T2C • Physical Layer Driven Optical Networking

T2D • Silicon Photonics II

T2E • Integrated Photonics

T2F • Quantum Dots for Energy

T2G • Super- resolution Microscopy I

T2H • DML- Enabled Systems

T2I • Best Student Papers IV

11:45-13:30 Lunch Break, Yi Café, 2F, Grand Tower

13:30–15:30 T3A • Fiber Sensors I

T3B • Advanced Modulation Formats

T3C • Optical and Wireless Converged Networks

T3D • Optical Sensing

T3E • Microwave Photonic Signal Processing

T3F • Lightsheet Microscopy and Deep Imaging

T3G • Coherent DSP

15:30–17:30 Poster Session, Beijing Room, 2F Coffee Break, Grand Ballroom Foyer, 3F

Exhibition, Grand Ballroom Foyer, 3F Postdeadline Sessions, Rooms to be Announced

18:30–21:30 Banquet & Awards Ceremony, Grand Ballroom, 3F, River Wing

Agenda of Sessions



Wednesday, 27 October Nanjing

Room I & II, 3F Track 1

Changan Room, 3F

Track 2

Guilin Room, 3F

Track 3

Kaifeng Room, 3F

Track 4

Suzhou Room, 3F

Track 5

Luoyang Room, 3F

Track 4




08:30–10:00 W1A • Multicore Fibers W1B • IM-DD Systems W1C • Silicon Photonics III

W1D • Microwave Photonic Measurement

W1F • Optoelectronics Devices II


10:30–12:00 W2A • Ultrafast Fiber Lasers & Nonlinear Optics

W2B • Visible Light Communication and Positioning Systems

W2C • Edge Optical Networks

W2D • Photonic Integrated Signal Processing

W2E • Frequency Comb W2G • Optical Switch and Tunable Devices


13:30–15:30 W3A • Fiber Lasers W3B • Systems with High Sensitivity

W3C • Data Center Optical Networks

W3D • Advanced Diode Lasers

W3E • Microwave Photonic Signal Generation


16:00–18:00 W4A • Fiber Sensors II W4B • Advanced Direct Detection Techniques

W4C • Lithium Niobate Integrated Photonics

18:30–21:30 Dinner, Grand Ballroom, 3F, River Wing

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ACP 2021 — Monday, 25 October

07:30–18:00 Registration

08:15-08:30 Opening Ceremony

Grand Ballroom, 3F, River Wing

08:30–10:00 M1A • Plenary Session I

M1A.1 • 08:30 The Free-Electron Laser Based on a Laser Accelarator, Ruxin L . Li1; 1Shanghai Tech Univ., China. Abstract not available .

M1A.2 • 09:15 Emerging Optical and Photonic Technologies for Communications and Beyond, Xiang Liu1; 1Futurewei, USA. The journey leading to the era of the 5th generation mobile and fixed networks, 5G and F5G, has witnessed ground-breaking innovations in optical communications and photonics . For the journey ahead, we are facing two grand technical challenges, the communication capacity limit imposed by the Shannon theorem and the slowing down of the Moore’s law . To address the impact of the Shannon capacity limit, the optical communications community is exploring innovative network architectures, system designs, photonic integrated circuits, and better integration of photonic and electrical circuits to continue reducing the cost and energy consumption per bit . To address the impact of the noticeable slowing down of the Moore’s law, the photonics community is exploring innovative algorithms, software, application-specific designs, advanced fabrication processes, and new material platforms via a holistic approach . In parallel, the communications and photonics communities are also broadening the application space of the optical and photonic technologies to new fields such as 3D sensing for consumer devices, head-up display, light detection and ranging for autonomous driving, distributed fiber-optic sensing, and optical computing . In this talk, we review emerging optical and photonic technologies for meeting the ever-increasing demands of communications, as well as addressing new applications beyond communications .

10:00–10:30 M2A • Poster Preview, Coffee Break and Exhibition

10:30–11:15 M3A • Plenary Session II

M3A.1 • 10:30 Explorations of Topological Photonics in Synthetic Dimensions, Shanhui Fan1; 1Stanford Univ., USA. The demonstrations of non-trivial topological effects in photonics have greatly enriched the study of fundamental optical physics, and may lead to optical devices that are robust against disorders and perturbations . The initial explorations of topological photonics have largely been restricted in the study of effects in real physical space, where non-trivial topology arises in complex photonic structures . In recent years, there have been emerging interests in exploring synthetic dimensions, which provides far more versatile platforms for exploring topological photonics . In this talk, we review some of our recent theoretical and experimental efforts in exploring frequency synthetic dimensions . When a ring resonator undergoes dynamic refractive index modulation, the modes of in the resonator can couple to form a synthetic lattice along the frequency dimension . In this system, the Hamiltonian of the system is controlled by the modulation format, which provides tremendous flexibilities for exploring novel physics . We show that a band structure along the synthetic dimension can be characterized by a time-domain measurement . Using such band structure spectroscopy technique, we experimentally demonstrate a wide range of topological effects, including synthetic magnetic field for photons in Hermitian systems, as well as band winding and band braiding in non-Hermitian systems .

M3A.2 • 11:15 Title to be Announced, Tobias J . Kippenberg1; 1Ecole Polytechnique Federale de Lausanne, Switzerland. Abstract not available .


Plenary

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Nanjing Room I & II, 3F Track 1


Guilin Room, 3F Track 3

Kaifeng Room, 3F Track 4

Suzhou Room, 3F Track 5

M4A.1 • 13:30 Fiber-Based Sources of Quantum Light for Quantum Information Processing, Xiaoying Li1; 1Tianjin Univ., China. Using the parametric process of four-wave mixing in silica core fibers, we demonstrate the generation of various kinds of quantum states, including the pure state single photons and spatially entangled photon pairs in telecom band .

M4A.2 • 14:00 Spatiotemporal Sculpturing of Ultrashort Pulses, Qiwen Zhan1; 1Univ. of Shanghai for Sci. and Tech., China. We present a pulse shaping technique that enables directly imprinting a spatial modulation to the spatiotemporal domain through taking advantage of the relationship between frequency and time of chirped pulses .

M4B.1 • 13:30 Submarine Transmission Using Space-Division Multiplexing, John D . Downie1, Xiaojun Liang1, Sergejs Makovejs1; 1Corning Inc, USA. We investigate space-division multiplexing approaches for high-capacity transmission in submarine systems and compare performance in terms of modeled capacity and relative system cost/bit . Multiple single-core fibers with reduced diameter and multicore fibers are studied .

M4B.2 • 14:00 High Capacity Transmission Using Space Divi- sion Multiplexing, Ruben S . Luis1, Benjamin J . Puttnam1, Georg Rademacher1, Yoshinari Awaji1, Hideaki Furukawa1; 1National Inst of Information & Comm Tech, Japan. We address the recent developments on S+C+L band, SDM transmission using homogeneous multicore fibers . We evaluate amplification techniques including the use of novel doped fiber and distributed fiber amplifiers .

M4C.1 • 13:30 Planning Security-Aware Filterless Optical Net- works, Qian Lv1, Zuqing Zhu1; 1Univ of Science and Technology of China, China. We consider to leverage optical transport network (OTN) encryption to enhance the security in filterless optical networks (FONs), and solve the resulting security- aware multilayer planning .

M4C.2 • 14:00 The OpenQKD Testbed in Berlin, Marc Geiz1, Ralf-Peter Braun2; 1Deutsche Telekom AG Laboratories, Germany; 2Deutsche Telekom AG, Germany. The Berlin OpenQKD Testbed demonstrates the integration of QKD technology into a field installed network infrastructure using a PQC secured key management system and hybrid key exchange protocols to secure communication applications .

M4D.1 • 13:30 Future on-Chip Optoelectronic Devices Base on Nanostructures, Yidong Huang1, Wei Zhang1, Xue Feng1, Fang Liu1, Kaiyu Cui1; 1Tsinghua Univ., China. A series of new functional optoelectronic devices have been realized, such as the on-chip free electron light source, real-time spectral imaging, integrated OAM emitter, and integrated quantum light sources for various quantum entangled state generation .

M4D.2 • 14:00 Integrated Silicon and Chalcogenide Photonic Devices at 2-Micron Wavelength, Hongtao Lin1; 1College of Information Science & Electronic Engi- neering, Zhejiang Univ., China. High-performance silicon and chalcogenide photonic devices operating at 2-micron wavelength were inverse designed and fabricated . Besides, through integration with graphene and black phosphorus, hybrid integrated modulators and detectors were also achieved .

M4E.1 • 13:30 Tutorial Silicon Photonics for Neuromorphic Computing and Artificial Intelligence, Bhavin J . Shastri1,2, Chaoran Huang3, Alexander Tait1,3, Paul Pruc- nal3; 1Queen’s Univ., Canada; 2The Vector Inst., Canada; 3Princeton Univ., USA. Neuromorphic photonics exploit optical device physics for neuron models, and optical interconnects for distributed, parallel, and analog processing for high-bandwidth, low-latency and low switching energy applications in artificial intelligence and neuromorphic computing .

M4E.2 • 14:15 Scalability of Photonic Deep Neural Networks Based on on-Chip Integrated Matrices of SOAs, Ripalta Stabile1, Nicola calabretta1, Bin Shi; 1Eindhoven Univ. of Technology, Netherlands. We demonstrate an all-optical neural network based on SOA-based cross-connect architecture with WDM inputs . We analyze its use as deep neural network, finding that it can scale to perform MNIST classification with 10 GS/s inputs .

13:30–15:30 M4A • Advances in Quantum & Classical Light Sources Presider: Limin Tong, Zhejiang University, China

13:30–15:30 M4B • SDM Transmission Presider: Ning Wang, China Mobile, China

13:30–15:30 M4C • Optical Security and QKD Presider: Yongli Zhao, Beijing Univ of Posts & Telecom, China

13:30–15:00 M4D • Novel Integrated Photonics Presider: To Be Announced

13:30–15:15 M4E • Photonic AI I Presider: Shui Xiang, Xidian University, China

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Wuxi Room, 3F Track 6



Nanjing Room III, 3F Best Student Papers

M4F.1 • 13:30 Title to be Announced, Xiaodan Zhang1; 1Nankai Univ., China. Abstract not available .

M4F.2 • 14:00 Title to be Announced, Yaohua Mai1; 1Jinan Univeristy, China. Abstract not available .

M4G.1 • 13:30 Multimodal Tissue Imaging Supported by Optical Clearing, Valery V . Tuchin1,2; 1Science Medical Center, Saratov State Univ., Russian Federation; 2Laboratory of Laser Molecular Imaging and Machine Learning (LMIML), National Research Tomsk State Univ., Russian Federation. The method of tissue optical clearing is discussed in the context of supporting of multimodality of optical imaging . Improved optical imaging and efficiency of laser treatment in the implementation of various theranostics approaches are demonstrated .

M4G.2 • 14:00 Recent Advances on Multifunctional Photosensitizers for Enhanced Photodynamic Therapy, Buhong Li1; 1Fujian Normal Univ., China. Photodynamic therapy (PDT) utilizes photosen- sitizer together with irradiation light of specific wavelengths interacting with oxygen to generate cytotoxic reactive oxygen species . Future demands for ideal multifunctional photosensitizers, emphasizing clinical translation and PDT application will be discussed .

M4H.1 • 13:30 Real-Time, Software-Defined, Multi-Modulation Format, GPU-Based Receiver, Sjoerd P . van der Heide1,2, Ruben S . Luis2, Sebastiaan Goossens1, Benjamin J . Puttnam2, Georg Radem- acher2, Ton Koonen1, Satoshi Shinada2, Yoshinari Awaji2, Alex Alvarado1, Hideaki Furukawa2, Chigo M . Okonkwo1; 1Eindhoven Univ. of Technology, Netherlands; 2National Inst. of Informa- tion and Communication Technology (NICT), Japan. Real-time digital signal processing for IM/DD PAM-N and Kramers-Kronig coherent N-QAM is implemented on a commercial off-the-shelf GPU . Transmission over 91 km of field-deployed fiber and a 10,000 km straight-line link is demonstrated .

M4H.2 • 14:00 Integration of Continuous-Variable Quantum key Distribu- tion and Coherent Optical Communication, Takuya Hirano1; 1Gakushuin Univ., Japan. In this talk, we will review the present status of continuous-variable quantum key distribution, including optical configuration and security analysis, and would like to discuss future prospects for integration with coherent optical communications .

M4I.1 • 13:30 Up to 240Gbaud Single Sideband Signal Transmission With the Sub-Sampling Technique, Xinyu Chen1, Lei Zhang1, Xian- song Fang1, Fan Yang1, Fan Zhang1; 1Peking Univ., China. We experimentally demonstrate a 240Gbaud SSB OOK transmitter with 120GSa/s DAC and achieve a BER below 20% HD-FEC threshold . The sub-sampling rate is 0 .5 by applying PR narrow- ing and a digital anti-aliasing brick-wall filter .

M4I.2 • 13:45 Simplified Short-Blocklength Variable-to-Fixed Distribu- tion Matching for Probabilistic Shaping, Shuangyu Dong1, Zhaopeng Xu1, Honglin Ji1, Jingge Zhu1, William Shieh1; 1The Univ. of Melbourne, Australia. A simplified short-blocklength variable-to-fixed distribution matching algorithm is proposed for probabilistic shaping . Compared with the original V2F DMLP method, the computational cost is reduced to 0 .41 operations per bit, which is 15 times less .

M4I.3 • 14:00 C-Band 112-Gb/s PAM-4 Transmission Over 50-km SSMF Using Absolute-Term Based Nonlinear FFE-DFE, Xiong Wu1, Junwei Zhang1,2, Gai Zhou1, Alan Pak Tao Lau1,3, Chao Lu1,3; 1The Hong Kong Polytechnic Univ., Hong Kong; 2Sun Yat-sen Univ., China; 3The Hong Kong Polytechnic Univ. Shenzhen Research Inst., China. An absolute-term based nonlinear FFE-DFE (AT-NFFE-DFE) is proposed and demonstrated for a 112-Gb/s PAM-4 system over 50-km SSMF, which saves 25 .2% computational complexity at a BER of 3 .8×10-3 compared to the polynomial NFFE-DFE .

M4I.4 • 14:15 Low-Complexity Carrier Phase Estimation for Probabilisti- cally Shaped MQAM Signals Based on Kullback-Leibler Divergence Analysis With Squared Symbols, Qifeng Yan1, Yu Xia1, Yujun Zhou1, Peishan Zhang1, Xuezhi Hong1; 1South China Normal Univ., China. A low-complexity phase estimation algorithm based on the Kullback-Leibler divergence analysis with squared symbols is proposed for probabilistically shaped M-QAM signals . Results show that it offers better performance than the principal component analysis based one .

13:30–14:45 M4F • Perovskite PV I Presider: To Be Announced

13:30–15:30 M4G • Optical Cancer Imaging Presider: Junle Qu, Shenzhen University, China

13:30–15:30 M4H • Real-time Transmission and Quantum Communications Presider: Zhiyu Xiao, Huawei Technologies Co Ltd, China

13:30–15:30 M4I • Best Student Papers I Presider: To Be Announced

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M4A.3 • 14:30 Few-Mode Amplifers and Their Applications, Guifang Li1; 1Univ. of Central Florida, USA. We describe few-mode Er-doped fiber amplifers and their applications in free-space optical communication and LiDAR .

M4A.4 • 15:00 Title to be Announced, Trevor M . Benson1; 1Univ. of Nottingham, UK. Abstract not available .

M4B.3 • 14:30 Fault Detection of Few Mode Fiber Based on Spatial Mode Transmission Reflection Analysis, Wenping Zhang1, Feng Liu1, Zhenxing He1, Guijun Hu2; 1Wenzhou Univ., China; 2Jilin Univ., China. This paper proposes a fast and simple monitoring technique based on spatial mode transmission- reflection analysis for long-reach FMF-based mode division multiplexing system . Results shows that the proposed method can achieve high fault localization accuracy .

M4B.4 • 14:45 Role of the Acousto-Optic Coupling in a Step- Index Large Effective-Area Fiber with Intramo- dal Brillouin Scattering, Han Zhu1, Shuo Chen1, Huiping Tian1; 1Beijing Univ of Posts & Telecom, China. We study the acousto-optic interaction in a step-index large effective-area fiber only containing intramodal Brillouin scattering and find the number and value of Brillouin peaks depends on the acousto-optic coupling coefficients . Experi- ments verifies the conclusion .

M4B.5 • 15:00 Title to be Announced, Juhao Li1; 1Peking Univ., China. Abstract not available .

M4C.3 • 14:30 Resource Allocation in Quantum-Key-Distribu- tion-Secured Datacenter Networks With Cloud- Edge Collaboration, Qingcheng Zhu2, Xiaosong Yu2, Yongli Zhao2, Avishek Nag1, Jie Zhang2; 1School of Electrical and Electronic Engineer- ing, Univ. College Dublin, Ireland; 2Beijing Univ. of Posts and Telecommunications, China. The problem of communication, computation, cach- ing, and cryptographic (4C) resource allocation is first solved in quantum-key-distribution-secured datacenter networks with cloud-edge collaboration . Simulation shows great performances of the proposed solution considering blocking rate and key consumption .

M4C.4 • 14:45 Side Channel Attack-Aware Slice Mapping in 5G RAN, Zhengyin Liang2, Guoli Feng1, YaJie Li2, Yifan Niu2, Suhao Zheng2, Yongli Zhao2, Jie Zhang2; 1State Grid Ningxia Electric Power Co., LTD. Information & communication Company, China; 2Beijing Univ. of Posts and Telecommu- nications, Beijing, China, 100876, China. A Side Channel Attack (SCA)-aware slicing algorithm is proposed to achieve secure slicing in 5G RAN . Results show that our algorithm can effectively balance the resource utilization and security performance of slices .

M4C.5 • 15:00 Time-Window Based Key Provisioning in Measurement-Device-Independent Quantum Key Distribution Secured Optical Access Networks, Yuhang Liu1, Xiaosong Yu1, Yongli Zhao1, YaJie Li1, Jie Zhang1; 1Beijing Univ of Posts & Telecom, China. This paper introduces a time-window based key provisioning scheme in measurement-device-independent quantum key distribution secured optical access networks . Simulation shows it achieves good performance in terms of key utilization rate .

M4D.3 • 14:30 SOI Based InAs QD Lasers and Multi-Wave- length Comb Lasers for Tbps Transmission, Ting Wang1, wenqi wei1, Zihao Wang1, jianjun zhang1; 1Inst. of Physics, CAS, China. Direct epitaxial growth of III-V on Si is one of the most promising candidates for realizing Si photonic integrated laser sources . Here, we demonstrated first CW current operated InAs QD lasers on SOI substrates via IV/III-V hybrid epitaxy . In addition, 60 channel QD comb lasers are developed for CW-WDM Tbps transmission .

M4E.3 • 14:45 Back-Propagation Neural Network Assisted Photonic Real-Time Fourier Transformation System, Zihao Wang1, Dan Zhu1, Xiaopeng Hu1, Shilong Pan1; 1Nanjing Univ Aeronautics & Astronautics, China. A photonic real-time Fourier transformation system assisted by back-propagation neural network is proposed . The frequency measurement over 2 to 11 GHz is experimentally achieved . The absolute measurement error is improved from 47 .9 to 4 .3 MHz . The generalization performance is also proved .

M4E.4 • 15:00 FPGA Implementation of Time-Interleaved Pruning Neural Network Equalizer for Short Reach Optical Interconnects, Mingyuan Li1, Wenjia Zhang1, Zuyuan He1; 1State Key Laboratory of Advanced Optical, China. A time-interleaved parallel pruning neural-network equalizer is proposed and implemented on FPGA for 100-Gbps PAM-4 optical interconnects, demonstrating over 55% and 40% hardware resource reduction for single and 8-channel equalization .

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M4F.3 • 14:30 Design and Fabrication of All-Inorganic Perovskite Solar Cells, Jia Liang1; 1Fudan Univ., China. Organic-inorganic perovskite solar cells (PSCs) exhibited poor stability and high cost . In order to overcome these disadvantages, we develop all-inorganic PSCs based on CsPbX3 (X = I, Br, Cl) and low-cost carbon films .

M4G.3 • 14:30 Deep Filtered Back Projection for Photoacoustic Image Reconstruction, Kang Shen1, Chao Tian1; 1Univ. of Science and Technology of China, China. We develop a filtered back projection based deep learning image reconstruction technique for photoacoustic tomography (PAT), called DeepFBP . This algorithm is implemented by mapping the conventional filtered back-projection (FBP) algorithm into a deep neural network . The performance of the DeepFBP technique was evaluated using numerical simulation .

M4H.3 • 14:30 A Real Time Implementation of 3-Stage Equalizer for Burst- Mode Digital QPSK Receivers of the Coherent PON, Tao Zeng1, Zhixue He1, lingheng meng1, Feng Jiang1, Shaohua Yu1; 1State Key Laboratory of Optical Communication Technologies and Networks, China information and communication technology Group Corporation, China. In this paper, we implement a real time 3-stage equalizer for burst-mode digital coherent receivers in asynchronous PON upstream, and demonstrate a high performance multi-function preamble header . We evaluate the performance of this architecture in the experiment .

M4I.5 • 14:30 QoT Evaluation of Optical Line System Transmission With Bismuth-Doped Fiber Amplifiers in the E-Band, Bruno V . Araujo Correia1, Aleksandr Donodin2, Rasoul Sadeghi1, Vladislav Dvoyrin2,3, Antonio Napoli6, João Pedro4,5, Nelson Costa4, Wladek Forysiak2, Sergei K . Turitsyn2,3, Vittorio Curri1; 1Politecnico di Torino, Italy; 2Aston Univ., UK; 3Novosibirsk State Univ., Russian Federation; 4Infinera Unipessoal Lda, Portugal; 5Instituto de Telecomunicações, Instituto Superior Técnico, Portugal; 6Infinera, UK. We numerically investigate E-band quality of the transmission using an experimentally characterized bismuth-doped fiber amplifier, demonstrating its impact on deployed C+L systems .

M4G.4 • 14:45 Proposal of a Hybrid Optical Double Ring Resonator for Cancer Biosensing, Sherine Shawky1, Ahmed Abdelmalek1, Ahmed Allam1, Hossam Shalaby1; 1Egypt-Japan Univ. of Science and Te, Egypt. A new design for a silicon-on-insulator (SOI) optical biosensor is proposed in the form of a hybrid double- ring resonator . The proposed device improves the sensitivity by 2 .4 times compared with the traditional devices .

M4G.5 • 15:00 Large-Scale Optical Pulling of Cancer Cells With Counter- Propagating Beams in the Near-Infrared-II Window, Yuxuan Ren1, Gwinky Yip2, Yi Zhou2, Kevin Tsia2, Kenneth Kin-Yip Wong2; 1Fudan Univ., China; 2The Univ. of Hong Kong, Hong Kong. We demonstrate that the near-infrared light can pull biological cells with weak polarizability owing to the biophotonic nanojet . Counter-propagating beams can exert backaction forces with opposite direction on the biological cells in large-scale .

M4H.4 • 14:45 Digital Emulation of Time-Varying PMD for Real-Time DSP Evaluations, Haorui Kan1, Hong Zhou1, Erik Börjeson1, Magnus Karlsson2, Per Larsson-Edefors1; 1Dept. of Computer Science and Engineering, Chalmers Univ. of Technology, Sweden; 2Pho- tonics Laboratory, Chalmers Univ. of Technology, Sweden. We introduce a digital PMD emulator to accelerate BER analysis of coherent receiver DSPs . The emulator creates parameteriz- able, time-varying impairments, which we use to demonstrate real-time analysis of a CMA equalizer .

M4H.5 • 15:00 Real-Time MIMO Detection Over SDM Fibers: Feasibility and Challenges, Shohei Beppu1, Noboru Yoshikane1; 1KDDI Research, Inc., Japan. For practical deployment of SDM transmission systems with few-mode or coupled-core fibers, hardware implementation of a real-time MIMO DSP is essential . We show SDM transmission experiments with a real-time MIMO DSP and discuss challenges .

M4I.6 • 14:45 High-Speed Secure Key Distribution With Polarization Modulation Boosted by Broadband Optical Chaos, Weidong Shao2,1, Mengfan Cheng2,3, Hanwen Luo2,3, Lei Deng2,3, Qi Yang2,3, Deming Liu2,3; 1School of Cyber Science and Engi- neering, Huazhong Univ. of Science and Technology, China; 2Research Inst. of Huazhong Univ. of Science and Technology in Shenzhen, China; 3School of Optical and Electronic Information, Huazhong Univ. of Science and Technology, China. We report a secure key distribution (SKD) scheme based on broadband opto-electronic Boolean chaos and polarization modulation for higher secure key generation rate (KGR) . An error-free SKD with KGR of 3 .6 Gb/s is experimentally demonstrated .

M4I.7 • 15:00 A Performance Optimization Method for Learned Digital Backpropagation to Select the Optimal Power(s) of Train- ing Data, Xiaoqian Huang1, Zhen Wu1, Du Tang1, Yaojun Qiao1; 1Beijing Univ. of Post. and Telecom, China. A method is proposed to select the optimal power(s) of training data for learned digital backpropagation (LDBP): Low-step LDBP should be trained on multi-power data, while high-step LDBP should be trained on high single-power data .

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M4C.6 • 15:15 Multi-Hop-Based Routing and Time-Slot Assign- ment in Centralized Quantum Entanglement Distribution Networks, Yazi Wang1, Xiaosong Yu1, Yongli Zhao1, Jie Zhang1; 1Beijing Univ of Posts & Telecom, China. A multi-hop-based routing and time-slot assignment algorithm is proposed in centralized quantum entanglement distribution networks . Simulation results show that it can achieve good performance .

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M4G.6 • 15:15 Multi-Modality Synergistic Tumor Precision Treatment Based on Phototherapy, Siwen Li1; 1State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Depart- ment of Biomedical Engineering, School of Engineering, China pharmaceutical Univ., China. Phototherapy is a mild and precise treatment . Herein, we constructed multiple nanoplatforms to combine immunotherapy, gene therapy, chemotherapy with phototherapy to achieve synergistic treatment, resulting in appreciable tumor growth inhibition .

M4I.8 • 15:15 Coherent Transfer Function Characterization for Harmonic Optical Tomographic Microscopy, Wenhui Yu1, Xiang Li1, Junle Qu1, Liwei Liu1; 1Shenzhen Univ., China. Complex point spread function and hence the coherent transfer function of a harmonic optical tomographic microscope has been measured by combining off-axis interferometry and Fresnel diffraction propagation of ZnO nanoparticles .


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M5A.1 • 16:00 Tutorial Hollow Core Fibres: Past, Present and Future, Francesco Poletti1; 1Univ. of Southampton, UK. Hollow core fibers have improved their optical performance by orders-of-magnitude in the last decade, and are now close to challenging solid core fibers . We will review this progress and highlight some disruptive applications .

M5B.1 • 16:00 Turbulence Mitigation Employing Multimode Diversity Reception for Free-Space Optics Communications, Yetian Huang1, Hanzi Huang1, Haoshuo Chen2, Juan Carlos Alvarado3, Qianwu Zhang1, Nicolas Fontaine2, Mikael Mazur2, Roland Ryf2, Rodrigo Amezcua-Correa3, Yingxiong Song1, Yingchun Li1, Min Wang1; 1Shanghai Univ., China; 2Nokia Bell Labs, USA; 3Univ. of Central Florida, USA. We review our demonstration comparing the performance with and without employing multimode diversity reception under a laboratory- simulated isotropic turbulence, and our demonstration on an elliptical-aperture multimode diversity receiver to mitigate the impairment from anisotropic turbulence .

M5C.1 • 16:00 Open Packet-Optical Edge Node: State of Art and Challenges [Invited], Filippo Cugini1, Davide Scano2, Alessio Giorgetti3, Andrea Sgambelluri2, Francesco Paolucci1, Piero Castoldi2; 1CNIT, Italy; 2Scuola Superiore Sant’Anna, Italy; 3IEIIT, CNR, Italy. This paper provides an overview of state of art and challenges for open packet-optical node solutions based on SONiC open operating system, coherent pluggable modules and P4-based packet switching programmability for edge networking .

M5D.1 • 16:00 Tutorial Photonic Integrated Circuits for Optical Wire- less Communication, Ton Koonen1, Zizheng Cao1; 1Inst. for Photonic Integration, Eindhoven Univ. of Technology, Netherlands. Optical wireless communication is becoming vital for solving the immi- nent congestion of radio-wireless networks . Mass deployment will require cost-effective photonic integrated circuits . This tutorial overlooks both transmitter and receiver circuits for wide-field as well as beam-steered OWC .

M5E.1 • 16:00 Passive Optical to Terahertz Conversion Through Plasmonic Nanoantennas Arrays, Mona Jarrahi1; 1Univ. of California Los Angeles, USA. We utilize the functionalities of plasmon-coupled surface states to demonstrate passive wavelength conversion of nanojoule optical pulses at a 1550 nm center wavelength to terahertz regime with efficiencies that exceed nonlinear optical methods by 4-orders of magnitude .

M5B.2 • 16:30 3 Gbit/s Wide Field-of-View Visible Light Communication System Based on White Laser Diode, Yuqi Hou1, Chicheng Ma1, Dong Li1, Fangchen Hu1, Guoqiang Li1, Chao Shen1, Nan Chi1; 1Fudan Univ., China. A high-speed laser- based white light visible light communication (VLC) system with wide field-of-view (FOV) of 34° has been demonstrated, enabling a data transmission rate exceeding 3 Gbit/s .

M5C.2 • 16:30 Service Chaining in Filterless Optical Metro-Ag- gregation Networks, Omran Ayoub2, Memedhe Ibrahimi1, Oleg Karandin1, Leila Askari1, Francesco Musumeci1; 1Politecnico di Milano, Italy; 2Univ. of Applied Sciences of Southern Switzerland, Switzerland. We discuss the advantages and disadvantages of the deployment of Filterless Optical Networks in metro-aggregation networks . In particular, we focus on the use case of service chaining under a filterless metro-aggregation network .

M5E.2 • 16:30 Title to be Announced, Xianbin Yu1; 1Zhejiang Univ., China. Abstract not available .

16:00–18:00 M5E • Terahertz Photonics Presider: Xianbin Yu, Zhejiang University, China

16:00–18:00 M5D • Optoelectronics Devices I Presider: To Be Announced

16:00–18:00 M5C • Open and Disaggregated Optical Networks Presider: Gangxiang Shen, Soochow University, China

16:00–18:00 M5B • Optical Wireless Transmission Systems Presider: Songnian Fu, Guangdong University of Technology, China

16:00–18:00 M5A • Microstructured & Nano Fibers Presider: Zefeng Wang, University of Defense Technology, China


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M5F.1 • 16:00 Title to be Announced, Wolfgang Tress1; 1Zurich Univ., Swit- zerland. Abstract not available .

M5G.1 • 16:00 Tutorial Fluorescence Lifetime Imaging Microscopy and its Biomedi- cal Applications, Junle Qu1, Liwei Liu1, Danying Lin1; 1Shenzhen Univ., China. In this talk, I will introduce the basic principle of fluorescence lifetime imaging microscopy (FLIM), review its recent progress, discuss the challenges for FLIM technology and present recent applications of FLIM in biomedicine .

M5H.1 • 16:00 Physics-Based Deep Learning for Fiber-Optic Communica- tion Systems, Christian Häger1; 1Chalmers Tekniska Högskola, Sweden. We will give an introduction and overview of recent advances in designing efficient nonlinear equalization schemes by combining insights about the signal propagation dynamics in optical fibers with novel data-driven optimization techniques .

M5I.1 • 16:00 A Grey-box Model for Estimating Nonlinear SNR in Optical Networks Based on Physics-Guided Neural Networks, Xiao- min Liu1, Lei Liu1, Huazhi Lun1, Yihao Zhang1, Weisheng Hu1, Lilin Yi1, Qunbi Zhuge1; 1Shanghai Jiao Tong Univ., China. Based on physics-guided neural network, we design the features and loss function for estimating nonlinear SNR . With 1603 examples from simulations, a shallow neural network can have a higher accuracy and a better physical consistency .

M5I.2 • 16:15 L-Band Amplifier Placement in C+L-Band Elastic Optical Networks, Yu Gu1, Yongcheng Li1, Ningning Guo1, Xiaodi You1, Gangxiang Shen1; 1Soochow Univ., China. To extend a fiber-optic transmission system from traditional C band to C+L band, we consider three L-band amplifier placement strategies in the context of a C+L-band elastic optical network (EON) . Simulations show that the strategies are efficient to trade off spectrum efficiency and system cost .

M5F.2 • 16:30 Integrating Organic-Perovskite Solar Cell, Yaowen Li1; 1Laboratory of Advanced Optoelectronic Materials College of Chemistry Chemical Engineering and Materials Science, Soochow Univ., China. Perovskite and organic solar cells are limited by their poor thermal and light stability due to their photoactive layers containing organic components . Herein, we have carried out a series of works intending to combine an inorganic perovskite film with an organic semiconductor film to construct a high-performance and stable integrated devices .

M5H.2 • 16:30 AI for Fast and Accurate Optical Fiber Channel Modeling, Lilin Yi1, Hang Yang1, Zekun Niu1, Shilin Xiao1, Weisheng Hu1; 1Shanghai Jiao Tong Univ., China. Deep learning is investigated to fast learn optical fiber channel with low complexity . The modeling shows robust generalization abilities under different optical launch powers, modulation formats, input signal distributions and transmission distance up to 1000km .

M5I.3 • 16:30 Experimental Validation of QoT Computation in Mixed 10G/100G Networks, Emanuele E . Virgillito1, Stefano Straullu2, Andrea Castoldi3, Andrea Bovio3, Fransisco Martinez Rodri- guez3, Rudi Bratovich3, Rosanna Pastorelli3, Vittorio Curri1; 1Po- litecnico di Torino, Italy; 2Links Foundation, Italy; 3SM-Optics, Italy. We validate experimentally a quality-of-transmission estimator of the non-linear impairment on coherent 100G channels propagating with 10G channels on dispersion-managed links for network planning and path computation . Presented estima- tions are conservative, spectrally and spatially disaggregated .

16:00–18:00 M5F • Thin Film PV Presider: To Be Announced

16:00–18:15 M5G • Optical Spectral Imaging Techniques Presider: To Be Announced

16:00–18:00 M5H • Machine Learning for Optical Communication Presider: Yunbo Li, China Mobile Communication Corporation R, China

16:00–18:00 M5I • Best Student Papers II Presider: To Be Announced

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M5A.2 • 16:45 Tuning Thermal Coefficient of Delay of Photonic-Bandgap Hollow-Core Fiber by Surface-Mode Coupling, Fei Yu1, Yazhou Wang1, Zhengran Li1, Lili Hu1, Jonathan Knight2; 1Shanghai Inst. of Optics and Fine Mech., China; 2Physics, Univ. of Bath, UK. We numerically demonstrate that surface modes play an important role in the tuning of temperature dependent group delay of PBG-HCF, with the thermal coefficient of delay tuned from -400 ps/km/K to 400 ps/km/K .

M5A.3 • 17:00 Large Mode Area Fibers With High Birefringece Induced by Internal Nanostructuring of the Core, Ryszard Buczynski2,1, Damian Michalik1, Alicja Anuszkiewicz2,3, Adam Filipkowski1,2, Grzegorz Stepniewski2,1, Dariusz Pysz2, Ireneusz Kujawa2, Rafal Kasztelanic1,2; 1Faculty of Physics, Univ. of Warsaw, Poland; 2Department of Photonic Materials, Lukasiewicz Research Network - Inst. of Microelectronics and Photonics, Poland; 3Fac- ulty of Electronics and Information Technology, Warsaw Univ. of Technology, Poland. We study a polarization maintaining silica glass fibers with artificially anisotropic core . A phase birefringence of 1 .92×10-4 for the single mode fiber with core diameter of 30 µm is reported .

M5A.4 • 17:15 Experimental Demonstration of a Compact Variable Single-Mode Fiber Coupler Based on Microfiber, Luqing Shao1, Yingxin Xu1, Hao Wu1, Wei Fang1, Limin Tong1; 1Zhejiang Univ., China. Abstract: A compact variable fiber coupler consisting of two identical microfibers is demonstrated . By twisting microfibers, the coupling ratio varies from 3 .15% to 98 .5% due to the change of evanescent field interaction length .

M5B.3 • 16:45 Experimental Demonstration of Free-Space Orbital-Angular-Momentum Mode-Group Multiplexing Under Atmosphere Turbulence, Andong Wang1, Long Zhu1, Mingliang Deng1, Bing Lu1, Xiaojin Guo1; 1CQUPT, China. We experimentally utilize transmitter mode diversity in a free-space 144 Gbit/s orbital-angular-momentum (OAM) mode-group multiplexed link, which can improve the received power and BER performance under atmosphere turbulence .

M5B.4 • 17:00 Hybrid FSO/MMW Communication System With Active Link Switching Based on Weather Conditions, Lun Zhao1, Shuai Zhang1, Xuanmin Pan1, Yejun Liu1, guo lei1; 1Chongqing Univ. of Posts and Telecommunications, China. This paper proposes a hybrid FSO/MMW communication system that can switch freely according to monitored weather conditions . The proposed system can improve system performance in different weather conditions .

M5B.5 • 17:15 Adaptive Probabilistic Shaping of PAM-4 Using Polar Codes for FSO Communication, Xiaoyu Liu1, Jiafei Fang1, Shilin Xiao1, Lizhuo Zheng1, Xiangyu Fu1, Weisheng Hu1; 1Shanghai Jiao Tong Univ., China. An adaptive probabilistic shaping scheme using polar codes is proposed to increase the capacity and combat the fading in FSO system, which outperforms the uniform scheme and PAS-MMB 0 .39~0 .91dB and 0 .10dB respectively in BLER .

M5C.3 • 17:00 Improving Optical Control Plane Research and Development Through Synergetic Testbed Experimentation and Emulation, Marco Ruffini1; 1Univ. of Dublin Trinity College, Ireland. We present Mininet-Optical, an optical network emulation tool for control plane development and testing . The tool Is used both for scalability studies and as sandbox for experimentation with telecommunications testbed infrastructure .

M5D.2 • 16:45 Thermal Dynamic Performance and Integrated Optoelectronic System With InGaP / GaAs Quantum Well Light-Emitting Transistors (LETs), Lu-Ching Hsueh1, Hsin-Yu Lin1, Kumar Mukul1, Chao-Hsin Wu1,2; 1Graduate Inst. of Photonics and Optoelectronics, National Taiwan Univ., Taiwan; 2Graduate Inst. of Electronics Engineering, Na- tional Taiwan Univ., Taiwan. The study investigates the DC characteristics and the optical output from room temperature to 358K . The current gain of the LET with triple QWs improves 146 .62％ which is desired for high resolution temperature sensor .

M5D.3 • 17:00 High-Power, Single-Mode, Multi-Aperture VCSELs for Long-Reach Optical Intercon- nects, Sicong Tian1,2, Ahamed Mansoor1,3, Julian Lindner1,2, Gunter Larisch1,2, Dieter Bimberg1,2; 1Changchun Inst of Optic, Fine Mech & Phy, Chi- na; 2Center of Nanophotonics, Inst. of Solid State Physics, Technische Universität Berlin, Germany; 3The Univ. of Chinese Academy of Sciences, Chi- na. Adapting photon lifetimes of VCSELs allows to increase their power efficiency/bit and cut-off frequency . Single-mode multi-aperture VCSELs, will lead to additional enormous improvements of temperature stability, larger roll-over current and increased output power .

M5D.4 • 17:15 High-Power and High-Speed Traveling-Wave Photodetectors With Genetic Algorithm Optimization, Zhilei Fu1, Hui Yu1, Penghui Xia1, Xiaofei Wang1, Gikai Huang1, Xiaoqing Jiang1, Jianyi Yang1; 1College of Information Science and Electronic Engineering, Zhejiang Univ., China. We demonstrate the 4-stage and 8-stage silicon traveling-wave photodetectors (TWPDs) . The 3-dB bandwidth of 4-TWPD is enhanced to 54 GHz . It is the first time the bandwidth of TWPD exceeds that of the PD unit .

M5E.3 • 17:00 Photonic Integrated Chips for THz Beam Steering, Peng Lu1, Thomas Haddad1, Jonas Tebart1, Andreas Stöhr1; 1Univ. of Duisburg-Essen, Germany. For future mobile THz applications, steerable high gain antennas are required to compensate for the high free-space path-loss and to support mobility . This invited talk will discuss THz beam steering technologies using photonic integrated chips .

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M5G.2 • 16:45 High-Speed and High-Resolution Raman Imaging of Biologi- cal Molecules Using Line Illumination, Katsumasa Fujita1,2; 1Osaka Univ., Japan; 2AIST, Japan. We will present our recent progress on the development of Raman microscopy using line illumination to improve the image acquisition speed and the spatial resolution in vibrational imaging of biological samples .

M5I.4 • 16:45 Wideband-Tunable Integrated Microwave Photonic Filter Based on an Ultra-High-Q Resonator, Hao Yan1, Yiwei Xie1, Long Zhang1, Yuluan Xiang1, Daoxin Dai1; 1Zhejiang Univ., China. A silicon integrated microwave photonic filter (IMPF) is demonstrated by utilizing a high-Q Euler-curve resonator with a large free-spectra range . The IMPF has a passband of 320 MHz and a tunable range of 8-27 GHz .

M5F.3 • 17:00 Antimony Selenosulfide Solar Cells, Tao Chen1; 1Univ. Sci & Technol. China, China. Here I will introduce our study in the defect analysis and high-quality Sb (S,Se) film fabrication . With

M5H.3 • 17:00 Attention-Based Neural Network Equalization in Fiber-Optic Communications, Abtin Shahkarami1, Mansoor I . Yousefi1, Yves Jaouen1; 1Telecom Paris, France. An attention mechanism is

M5I.5 • 17:00 Synchronization of two Microwave Oscillators Based on an MLL-Based Microwave Photonic Phase Detector, Kunlin Shao1, Yamei Zhang1, Shilong Pan1; 1Nanjing Univ Aeronautics that, the solar cell overcoming 2 3 ef barrier, highlight- integrated into neural network-based equalizers to prune the & Astronautics, China. A microwave photonic phase detector

10% ficiency ing the great poential of Sb (S as rvesting material . fully-connected output layer . For a 100 GBd 16-QAM 20 x 100 to synchronize two RF signals to a single mode locked laser is 2 ,Se)3 light ha

M5G.3 • 17:15 Title to be Announced, David D . Sampson1; 1Univ. of Surrey, UK. Abstract not available .

km SMF transmission, this approach reduces the computational complexity by ~15% in a CNN+LSTM model .

M5H.4 • 17:15 Sparsely-Connected Cascade Recurrent Neural Network- Based Nonlinear Equalizer for a 100-Gb/s PAM4 Optical Interconnect, Zhaopeng Xu1, Shuangyu Dong1, Chenxin Jiang1, Jonathan H . Manton1, William Shieh1; 1Univ. of Melbourne, Aus- tralia. A sparsely-connected cascade recurrent neural network is proposed based on pruning which enables a 100-Gb/s 15-km PAM4 transmission using a bandwidth-limited DML . Compared with the fully-connected counterpart, 21 .66% connections are saved without degrading system performance .

proposed and demonstrated . Two RF signals with frequencies of 8 .058 GHz and 8 .364 GHz are synchronized .

M5I.6 • 17:15 All Optical Nonlinear Activation Function Based on Ge/Si Hybrid Micro-Ring Resonator, Bo Wu1, Hengkang Li1, Jianji Dong1, Xinliang Zhang1; 1Wuhan National Laboratory for Op- toelectronics, China. We demonstrate an all optical nonlinear activation function device based on Ge/Si hybrid micro-ring resonator . Three different types of nonlinear function are realized with threshold below 1mW and they can work well beyond 5MHz .

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M5A.5 • 17:30 Title to be Announced, Limin Tong1; 1Zhejiang Univ., China. Abstract not available .

M5B.6 • 17:30 Physical-Layer Network Coding Based on Pre- coded OFDM in Relay-Assisted Visible Light Communications, Shuhua Song1, Zhaoquan Fan1, Geyang Wang1, Chengju Hu1, Jian Zhao1; 1South China Univ. of Technology, China. We experimentally demonstrate physical-layer network coding (PNC) based on precoded OFDM in a 2 .16-Gbit/s asymmetric two-way-relay VLC network, and show that PNC enables full-duplex transmission with significantly improved performance while OCT- P-OFDM outperforms OFDM and DFT-S-OFDM .

M5B.7 • 17:45 A Modified Phase Diversity Algorithm-Based Adaptive Compensation for Orbital Angular Momentum Wireless Optical Communication, Huan Chang1, Ran Gao1, Xiaoli Yin2, Fei Wang1, Sitong Zhou1, Qi Zhang1, Dong Guo1, Fu Wang1, Zhipei Li1, Xiangjun Xin1; 1Beijing Inst. of Technol- ogy, China; 2Beijing Univ. of Posts and Telecom- munications, China. A modified phase diversity algorithm (MPDA)-based adaptive optics (MPDA- AO) scheme of compensating for the OAM beam is proposed . Simulation results demonstrate that the proposed MPDA-AO technique indeed de- contaminates the distorted OAM signaling beam .

M5C.4 • 17:30 Optimized Design of Metro-Aggregation Net- works Exploiting Digital Subcarrier Routing, Mohammad Mohammad Hosseini1, João Pe- dro2,4, Antonio Napoli3, Nelson Costa2, Jaroslaw E . Prilepsky1, Sergei K . Turitsyn1; 1Aston Inst. of Photonics, Aston Univ., UK; 2CTO Optical Systems Group, Infinera, Portugal; 3Strategy, Architecture, and Engineering, Infinera, UK; 4Instituto de Tele- comunicações, Portugal. We propose an Integer Linear Programming model for the CAPEX minimi- zation of point-to-multipoint transceivers in mesh networks . The results show cost reduction of up to 40%, along with potential for further cost-savings in router interfaces .

M5C.5 • 17:45 CLONETS-DS – Clock Network Services-Design Study Strategy and Innovation for Clock Services Over Optical-Fibre Networks, Josef Vojtech1, Lada Altmannova1, Vladimir Smotlacha1, Radek Velc1, Rudolf Vohnout1, Harald Schnatz2, Tara Cubel Liebisch2, Vincenzo Capone3, Tryfon Chiotis3, Guy Roberts3, Domenico Vicinanza3, Artur Binczewski4, Wojbor Bogacki4, Krzysztof Turza4, Paul-Eric Pottie5, Philip Tuckey5, Jerome Fils5, Davide Calonico6, Vittorio Curri7, Ronald Holzwarth8, Benjamin Sprenger8, Ondrej Cip9, Lenka Pravdova9, Simon Rerucha9, Javier Diaz Alonso10, Eduardo Ros Vidal10, Trinidad Garcia11, Benoit Rat11, Jan Kodet12, Ulrich Schreiber12, Jurgen Kusche13, Dieter Meschede13, Stefan Schröder13, Stefan Stellmer13, Pawel Nogas14, Robert Urbaniak14, Przemyslaw Krehlik15, Lukasz Sliwczynski15, Anne Amy Klein16, Nicolas Quintin17, Alwyn Seeds18, Bruno Desruelle19, Jean Lau- tier Gaud19, Vincent Menoret19, Martin Rabault19; 1CESNET, Czechia; 2PTB, Germany; 3GEANT, UK; 4PSNC, Poland; 5LNE-SYRTE, France; 6INRIM, Italy; 7Politecnico di Torino, Italy; 8Menlo Systems, Germany; 9ISI, Czechia; 10UGR, Spain; 11Seven Solutions, Spain; 12TUM, Germany; 13UNI Bonn, Germany; 14Piktime Systems, Poland; 15AGH Uni, Poland; 16LPL, France; 17RENATER, France;

M5D.5 • 17:30 Monolithic Integrated Continuously Tunable Terahertz Source Based on a Dual-Wavelength DBR Laser, Wanshu Xiong1, Mengdie Sun2, Ruoyun Yao1, Qianwen Guo1, Ronald Broeke3, Chen Ji1; 1Zhejiang Univ., China; 2Chinese Academy of Sciences, China; 3Bright Photonics, Netherlands. We demonstrate a tunable terahertz (THz) source whose generation range over 0 .05- 0 .7THz . The monolithically integrated Terahertz generation chip consists of dual-wavelength Distributed Bragg Reflector (DBR) lasers, an SOA and a multimode interference (MMI) coupler .

M5D.6 • 17:45 Subwavelength-Structure-Assisted Multimode add-Drop Multiplexer, Xiaolin Yi1, Weike Zhao1, Chenlei Li1, Chaochao Ye1, Daoxin Dai1; 1Zhejiang Univ., China. A novel subwavelength-structure- assisted multimode add-drop multiplexer is proposed and demonstrated to enable the adding/dropping of any mode-channels from the multimode bus waveguide in a multimode- division-multiplexing system .

M5E.4 • 17:30 Anti-Dispersion Distributed Multi-Output Mi- crowave Photonic Phase Shifter, Hanxiao Xue1, Jiasi Yang1, Yunping Bai1, Zhonghan Su1, Zhennan Zheng1, Xinlu Gao1, Shanguo Huang1; 1Beijing Univ. of Posts & Telecommun., China. We propose an anti-dispersion distributed multi-output microwave photonic phase shifter for application in large-scale microwave photonic network scenarios . In the experiment, the signals at remote outputs have good coherence .

M5E.5 • 17:45 30 GHz Lithium Niobate Integrated Optoelec- tronic Oscillator, Rui Ma1, Ying Pan1, Xinlun Cai1; 1State Key Laboratory of Optoelectronic Materi- als and Technologies and School of Electronics and Information Technology, Sun Yat-sen Univ., China. An optoelectronic oscillator (OEO) for 30 GHz with discrete components is experimentally demonstrated, and its phase noise is -103 dBc/ Hz@10KHz . The phase noise of Lithium Niobate integrated OEO is simulated, which is –115 dBc/ Hz@1MHz .

18UCL, UK; 19Muquans, France. CLONETS-DS is 18:30–21:30 Welcome Reception a European Union-funded research and innova-

tion action intended to facilitate the vision of a sustainable, pan-European fibre network for time and frequency dissemination .

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M5F.4 • 17:30 Wide-Bandgap GeS Solar Cells, Dingjiang Xue1; 1Inst. of Chemistry CAS, China. Through interfacial strain engineering, we successfully prepared wide-bandgap GeS thin film solar cells in substrate structure of glass/Mo/MoSe2/GeS/ CdS/i-ZnO/ITO/Ag, and demonstrated their great potential in indoor photovoltaics .

M5H.5 • 17:30 Experimental Evaluation of Computational Complexity for Different Neural Network Equalizers in Optical Commu- nications, Pedro Jorge Freire de Carvalho Souza1, Yevhenii Osadchuk1, Antonio Napoli2, Bernhard Spinnler2, Wolfgang Schairer2, Nelson Costa3, Jaroslaw E . Prilepsky1, Sergei K . Tu- ritsyn1; 1Aston Univ., UK; 2Infinera, Germany; 3Infinera, Portugal. Addressing the neural network-based optical channel equalizers, we quantify the trade-off between their performance and complexity by carrying out the comparative analysis of several neural network architectures, presenting the results for TWC and SSMF set-ups .

M5F.5 • 17:45 Flexible Sb2Se3 Solar Mini-Module for IoT Application, Kanghua Li1, Chao Chen1, Jiang Tang1; 1Huazhong Univ. of Sci- ence and Technology, China. An ultra-thin, lightweight, flexible Sb2Se3 solar mini-module (25 cm2 area) was constructed . Then, the application of the mini-module for powering the sensors of the Internat of Things was demonstrated .

M5G.4 • 17:45 Hyperspectral Spatial Frequency Domain Imaging for Label- Free, Non-Contact, and Wide-Field Monitoring of Tissue Optical Properties and Chromophore Concentrations, Yanyu Zhao1; 1Beihang Univ., China. Spatial Frequency Domain Imag- ing (SFDI) is an emerging technology that enables label-free, non-contact, and wide-field mapping of tissue optical properties, which further allows for quantification of chromophore concentrations including oxy-hemoglobin, deoxy-hemoglobin, water and lipids .

M5G.5 • 18:00 A High-Q, Double-arc Microcapillary Biosensor for DNA De- tection With High Speed, low Sample Volume, Shuai Zhang1, Yao Lu1, Zhongwei Liang1, Cheng Wan2, Hongdan Wan1; 1Nan- jing Univ. of Posts & Telecomm, China; 2Yikongenomics (Suzhou) Co., Ltd., China. We demonstrate a label free DNA fiber sensor based on double-arc microcapillary (DAM) with high-Q WGM oscillation . The detection limit of the sensor is <100 pM, the volume of the detection sample is approximately nL

M5H.6 • 17:45 A Ditherless Bias Control Technique for IQ Mach-Zehnder Modulator Based on Partial Derivative and Neural Network, Jinyang Wu1, Jiaqi Huang1, Dai Xiaoxiao1, Qi Yang1, Mengfan Cheng1, Lei Deng1, Deming Liu1; 1Huazhong Univ. of Science and Technology, China. We proposed a ditherless automatic bias control algorithm based on partial derivative estimation and neural network . Simulation results show the precision for bias IQ and P can achieve 0 .5% and 0 .1% of 2Vπ, respectively .

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ACP 2021 — Tuesday, 26 October







T1A.1 • 08:30 Photonic Lanterns: Beyond Optical Communi- cations, Sergio G . Leon-Saval1; 1Univ. of Sydney, Australia. Photonic lanterns are low-loss mode convertors easily integrated with current optical fiber technologies . The technology has become a platform for remarkable new innovations and applications beyond optical communications .

T1B.1 • 08:30 C+L Optical Amplifier Modeling Assisted by Machine Learning, Maria Vasilica Ionescu1, Amirhossein Ghazisaeidi1, Jeremie Renaudier1; 1Nokia Bell Labs France, France. Machine learning can provide highly accurate models of amplifier gains as a function of pump powers . We discuss the implementation approaches and challenges in determining the best-fit ML model of an optical amplifier .

T1C.1 • 08:30 Title to be Announced, Biswanath Mukherjee1; 1Soochow Univ., China. Abstract not available .

T1D.1 • 08:30 Title to be Announced, Zhihong Huang1; 1Hewlett Packard laboratories, USA. Abstract not available .

T1E.1 • 08:30 Intelligent Optical Signal Processing for Opti- cal Communications, Chaoran Huang1, Thomas Ferreira de Lima2, Hsuan-Tung Peng2, Alexander Tait2, Simon Bilodeau2, Bhavin Shastri3, Paul Pruc- nal2; 1Chinese Univ. of Hong Kong, Hong Kong; 2Princeton Univ., USA; 3Queens Univ., Canada. Machine learning can solve many applications in optical communications, but its benefits are largely validated offline using conventional com- puters . We will introduce a radically new hardware platform, neuromorphic photonics, for machine learning, and review its applications in different optical communication systems .

T1A.2 • 09:00 Direct Demodulation of Differential Phase From Φ-OTDR Using Self-Homodyne Phase Diversity Receiver, Shuaiqi Liu1,2, Feihong Yu1, Weijie Xu1, Huanhuan Liu1, Perry P . Shum1, Mang I Vai2, Li-yang Shao1; 1Department of Electrical and Electronic Engineering, Southern Univ. of Science and Technology, China; 2State Key Labo- ratory of Analog and Mixed-Signal VLSI, Univ. of Macau, Macao. Differential Phase information of Φ-OTDR signal is directly extracted based on self-homodyning the Rayleigh backscattered light using a 90° optical hybrid receiver . The proposed method offers a cost-effective solution for quantitative distributed vibration sensing with low computation complexity .

T1B.2 • 09:00 Enabling Technologies and Experiments on Ultra-Wideband Amplified Transmission Sys- tems, Lidia Galdino1; 1Univ. College London, UK. Challenges and solutions in experimentally demonstrate ultra-wideband (UWB) optical transmission are described . The description of theoretical models and metrics, together with different approaches for UWB transmission system optimisation is proposed and investigated .

T1C.2 • 09:00 Towards Large-Scale Disaster-Resilient Open and Integrated Disaggregate/Legacy Opti- cal Networks, Sugang Xu1, Kiyo Ishii2, Noboru Yoshikane3, Sifat Ferdousi4, Masaki Shiraiwa1, Yusuke Hirota1, Takehiro Tsuritani3, Yoshinari Awaji1, Naoya Wada1, Shu Namiki2, Biswanath Mukherjee4,5; 1National Inst. of Information and Communications Technology, Japan; 2National Inst. of Advanced Industrial Science and Technol- ogy, Japan; 3KDDI Research, Inc., Japan; 4Univ. of California, Davis, USA; 5Inst. for Broadband Research and Innovation (IBRI) at Soochow Univ., China. We investigate an approach to enhance re- silience of future optical networks with openness and disaggregation . We present our studies on the control and optical performance monitoring/ telemetry of optical networks with this approach in disaster recovery .

T1D.2 • 09:00 Demonstration of Stimulated Brillouin Scat- tering in low-Loss Chalcogenide Waveguides, Jingcui Song2, Lei Wan1, Xiaojie Guo1, Tianhua Feng1, Bin Zhang2, Zhaohui Li2; 1Jinan Univ., China; 2Sun Yat-sen Univ., China. The Brillouin gain characteristics were demonstrated in two low-loss chalcogenide waveguides . Compared with the Brillouin gain coefficient of 202 m-1W-1 in the As-S spiral waveguide, the gain performance of the Ge-As-S counterpart was measured to be 118 m-1W-1 .

T1E.2 • 09:00 Photonics Spiking Neural Network: Theory, Device and Algorithm, Shui Y . Xiang1, Yue Hao2; 1State Key Laboratory of Integrated Services Network,Xidian Univ., China; 2School of Micro- electronics, Xidian Univ., China. Photonics neuromorphic computing is a promising candidate for the next generation of intelligence computing . The optical devices that can emulate the neuron-like and synapse like-dynamics, and the hardware-friendly supervised learning algorithm will be introduced .

08:30–10:00 T1A • Fiber Devices & Applications Presider: Ming Tang, Huazhong University and Science and Technology , China

08:30–10:00 T1B • High-Capacity Transmission Systems Presider: Qunbi Zhuge, Shanghai Jiao Tong University, China

08:30–10:00 T1C • Control Technology of Future Optical Networks Presider: Yunbo Li, China Mobile Communication Corporation R, China

08:30–10:00 T1D • Silicon Photonics I Presider: To Be Announced

08:30–10:00 T1E • Photonic AI II Presider: Weiwen Zou, Shanghai Jiao Tong University, China

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T1F.1 • 08:30 Inverted Perovskite Solar Cells With Improved Efficiency and Stability, Wei Chen1; 1Huazhong Univ. of Science and Technol- ogy, China. Our research group dedicated efforts to scale-up fabrication of large-area perovskite films, efficiency optimization of large-area module, and resolving stability issues of inverted PSCs . These solidly increase the PSC’s industrilization feasiblity .

T1F.2 • 09:00 Unveiling the Surface of Photovoltaic Perovskites, Rui Wang1; 1Westlake Univ., China. Recently, most of the highly efficient perovskite optoelectronic devices have been reported to em- ploy effective surface passivation strategies, further confirming the significance of surface states in regulating their device performance . In this talk, I will present our recent progress on unveiling the surface of perovskites .

T1G.1 • 08:30 Polarization Sensitive Swept Source OCT to map Local- ized Birefringent Information Within Living Tissue, Ruikang K . Wang1, Peijun Tang1; 1Univ. of Washington, USA. We will describe a novel method of tracing polarization states propagating within a birefringent tissue to map local optic axis and phase retardation, indicative of local birefringent information and thus collagen fiber organizations .

T1G.2 • 09:00 Multi-Dimensional Single Particle Tracking, Ning Fang1; 1Xiamen Univ., China. We have developed a multi-dimensional single particle tracking (SPT) method for visualizing 3D rotational motions of anisotropic imaging probes in complex cel- lular environments . This allows us to reveal the detailed working mechanisms of molecular motors in live cells .

T1H.1 • 08:30 Large Capacity, High Spectral Efficiency and Long Distance Optical Transmission Based on High-Order QAM, Jianjun Yu1, Miao Kong1, Kaihui Wang1, Junjie Ding1, Yi Wei1; 1Fudan Univ., China. We summarized our recent research results and achieved high-level QAM-based large-capacity, high-spectrum efficiency, and long-distance transmission through advanced digital signal processing

T1H.2 • 09:00 Coded and Modulation of Coherent 800G per Lambda DWDM Transmission, Zhiyu Xiao1; 1Huawei Technologies Co Ltd, USA. For 800G transmission, an appropriate modulation and coding scheme must be selected to achieve the expected SE and performance . In this paper, the application of different modulation and coding techniques on 800G is introduced to obtain the optimal modulation and coding techniques under different target SE definitions .

T1I.1 • 08:30 8×8 Microring Optical Switch on a Dual-Layer Si3N4-on-SOI Platform, Xin Li2, Wei Gao2, Liangjun Lu2,1, Jianping Chen2,1, Linjie Zhou2,1; 1SJTU-Pinghu Inst. of Intelligent Optoelectron- ics, China; 2State Key Laboratory of Advanced Optical Com- munication Systems and Networks, China. We demonstrate an 8×8 microring switch based on a dual-layer Si3N4-on-SOI platform . Experimental results show the chip has a fiber-to- fiber insertion loss < 9 .23 dB, crosstalk < -22 .5 dB and optical bandwidth of 70 GHz .

T1I.2 • 08:45 Silicon-on-Insulator Grating Couplers for Dual-Band and Triple-Band Multiplexing, Lirong Cheng1, Simei Mao1, H .Y . Fu1; 1Tsinghua Univ., China. We demonstrate dual-band and triple-band operating grating couplers on silicon-on-insulator . These grating couplers simultaneously couple multiple bands and spatially separating them with calculated coupling efficiencies of <4 dB for all bands .

T1I.3 • 09:00 512-Channel Optical Phased Array With Large Field of View and High Resolution, Pengfei Wang1, Guangzhen Luo1, Peng- fei Ma1, Hongyan Yu1, Xuliang Zhou1, Yang Xu2, Yejin Zhang1, Jiaoqing Pan1; 1Inst. of Semiconductors, CAS, China; 2Beijing R&D Inst., VanJee Technology, China. We demonstrated a silicon-photonic OPA chip with a field of view of 102°×20° and an angular resolution of 0 .2°×0 .2°, which provides a foundation for the application of larger-scale OPA chips to all-solid-state LIDAR .

08:30–10:00 T1F • Perovskite PV II Presider: To Be Announced

08:30–10:00 T1G • Novel Optical Imaging Techniques Presider: To Be Announced

08:30–10:30 T1H • Coherent Transceivers and Transmission Presider: Bin Chen, Hefei University of Technology, China

08:30–10:00 T1I • Best Student Papers III Presider: To Be Announced



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T1A.3 • 09:15 An Intrusion Recognition Method Based on the Combination of One-Dimensional CNN and DenseNet With DAS System, Qizhen Sun2,1, Shixiong Zhang2, Tao He2, Cunzheng Fan2, Hao Li2, Zhijun Yan2, Deming Liu2; 1PGMF and School of Physics, Huazhong Univ. of Science and Tech- nology, China; 2School of Optical and Electronic Information, Wuhan National Laboratory for Op- toelectronics, National Engineering Laboratory for Next Generation Internet Access System, Huazhong Univ. of Science and Technology, China. Assisted with fiber optic distributed acoustic sensing (DAS) system, the average recognition accuracy of 98 .4% for six types of events and 2ms processing time were achieved in the field test .

T1A.4 • 09:30 Spectral Line Spacing Multiplied Optical Fre- quency Comb Generation Based on Talbot Ef- fects, Ruifeng He1, Juanjuan Yan1; 1Beihang Univ., China. An optical frequency comb line spacing control system based on temporal and spectral Talbot effects is demonstrated . The spectral line spacing is respectively increased to 2, 3, 4, and 5 times of the original .

T1A.5 • 09:45 High Sensitivity Refractive Index Sensor Based on the Cascaded Long-Period Fiber Grating Near the Dispersion Turning Point, Kangkang Lu1, Chen Jiang1, Dandan Liao1, Yunqi Liu1; 1Shanghai Univ., China. We demonstrate the fabrication of refractive index sensor based on the cascaded long-period fiber grating near dispersion turning point . The measured refractive index sensitivity is up to 2095 .9 nm/RIU in the RI range of 1 .333-1 .395 .

T1B.3 • 09:30 Low-Noise Amplification and Equalization of Dissipative Kerr Soliton Microcomb Lines via Laser Injection Locking, Boyuan Liu1, Qiang Zhang1, Xinjie Han1, Yong Geng1, Kun Qiu1, Heng Zhou1; 1Univ of Electronic Science & Tech China, China. We demonstrate optical injection locking to amplify Kerr soliton comb lines for high speed optical communications, excellent results are achieved regarding comb power amplification, signal-to-noise ratio enhancement and bit-error rate, outperforming conventional fiber amplifier .

T1B.4 • 09:45 Single-Carrier 800 Gbit/s and 1.2 Tbit/s Trans- mission Using 96 GBaud Commercial Optoelec- tronic Components, Qiang Zheng1, Hong Yang1, Longbao Wang1, Zhuopeng Xiao1, Huijian Zhang1; 1HiSilicon Optoelectronics Co., Ltd, China. Using commercial optoelectronic components we experimentally demonstrate an 800 Gbit/s/lambda system with 96 GBaud 32QAM . The BER floor is 9e-5 and the receiver sensitivity is -20 .7 dBm, which may support several DCI applications .

T1C.3 • 09:30 Multi-Agent Federated Reinforcement Learn- ing for Privacy-Enhanced Service Provision in Multi-Domain Optical Network, LIiu Haiyu1, Rentao Gu1, Zhekang Li1, Yuefeng Ji1; 1BUPT, China. We propose a multi-agent federated reinforcement learning algorithm for privacy- enhanced service provision in multi-domain optical network . Experimental results show blocking probability is reduced from 11% to 1% and the deviation ratio is within 3% .

T1C.4 • 09:45 Sample Distribution Matching Based Transfer Learning for QoT Estimation in Optical Net- works, Tangze Qin1, Zhiqun Gu1, Jiawei Zhang1, Yuhang Zhou1, Yuefeng Ji1; 1BUPT, China. We propose a sample distribution matching based transfer learning approach to perform accurate QoT estimation with fewer samples . Simulation results demonstrate that the proposed method can save training samples effectively .

T1D.3 • 09:15 Ultralow-Loss Compact Silicon Photonic Wave- guide Spirals, Shihan Hong1, Long Zhang1, Yi Wang1, Ming Zhang1, Yiwei Xie1, Daoxin Dai1; 1Zhejiang Univ., China. We propose a broadened silicon spiral with tapered-Euler-S-bend to realize low-loss and compact waveguides . A 100-cm- long spiral is realized with a minimum bending radius of 10 μm . The measured propagation loss is 0 .28 dB/cm .

T1D.4 • 09:30 High-Performance Waveguide Ge/Si Avalanche Photodiode with Simplified Fabrication Pro- cesses, Yuluan Xiang1, Hengzhen Cao1, Chaoyue Liu1, Daoxin Dai1; 1Zhejiang Univ., China. A high- performance waveguide Ge/Si avalanche photodiode is designed and fabricated with simplified processes, showing a high primary responsivity of 0 .96 A/W, a 3dB bandwidth of 27 GHz . A 50 Gbps data transmission is also demonstrated .

T1D.5 • 09:45 Nonlinearity Enhancement in Organic-Silicon Hybrid Slot Waveguide, Su He1, Yonghua Wang1, Houzhi Cai1, Lei Lei1; 1Shenzhen Univ., China. We experimentally demonstrate a highly nonlinear organic-silicon hybrid slot waveguide (HN-OSSW), whose nonlinear coefficient reaches to 1 .55×106

W-1km-1 with the waveguide length of 2mm .

T1E.3 • 09:30 OAM Mode Division Multiplexing Based IM/ DD Transmission With CNN Equalizer, Fei Wang1, Ran Gao1, Huan Chang1, Yi Cui2, Zhipei Li1, Sitong Zhou1, Qi Zhang2, Feng Tian2, Qinghua Tian2, Yongjun Wang2, Leijing Yang2, Xiangjun Xin1; 1Beijing Inst. of Technology, China; 2Beijing Univ. of Posts and Telecommunications, China. We propose a Convolutional Neural Network as the nonlinear equalizer in the orbital-angular- momentum transmission system with intensity modulation and direct detection . 3dB and 1 .5dB benefits in two-mode groups are achieved compared with the Volterra equalizer .

T1E.4 • 09:45 Noise and Scalability Investigation of SOA- Based All-Optical Photonic Deep Neural Network, Bin Shi1, Bitao Pan1, Nicola calabretta1, Ripalta Stabile1; 1Technische Universiteit Eind- hoven, Netherlands. We emulate and experimentally validate the scaling of SOA-based all-optical deep neural networks by accurately modeling the OSNR degradation in a chain of SOAs: The photonic neural network can scale up to 16 layers when using only 4 neurons/layer without notable accuracy degradation .

10:30–11:00 Coffee Break & Poster Preview & Exhibition

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T1I.4 • 09:15 Single-Frequency Dual-Cavity Laser on Erbium-Doped Lithium Niobate on Insulator, Zeyu Xiao1, Kan Wu1, Minglu Cai1, Tieying Li1, Jianping Chen1; 1Shanghai Jiao Tong Univ., China. We report a single-frequency dual-cavity laser on the Er:LNOI platform . Facilitated by the Vernier effect and gain competition, the output single-frequency signal light has a power of 0 .31 μW and an SMSR of 31 dB .

T1F.3 • 09:30 Title to be Announced, Dewei Zhao1; 1Sichuan Univ., China. Abstract not available .

T1G.3 • 09:30 Live-Cell FRET Assay on the Stoichiometry and Regulation Network of Bcl-2 Family Complexes, Tongsheng Chen1; 1South China Normal Univ., China. FRET analysis was used to quantify the protein–protein interactions among Bax, Bcl- xL, Bad and tBid in healthy and apoptotic cells . Bcl-xL binds preferentially to Bad, then to tBid and Bax in mitochondria, whilst Bcl-xL displays higher afnity to Bad or tBid than to itself .

T1H.3 • 09:30 16-Tb/s (80×200-Gb/s) Nyquist DP-QPSK Transmission Over 10,000-km G.654E Fiber Using Silicon-Based Integrated Coherent Transceiver, Chao Yang1, Ming Luo1, Zhixue He1,3, Lei Wang2,1, Xi Xiao1,2, Shaohua Yu1,2; 1China Information Communication Technologies Group Corporation, China; 2National Information Optoelectronics Innovation Center, China; 3PengCheng National Laboratory, China. We use a high-bandwidth silicon-based integrated coherent transceiver in the long-haul fiber transmission systems . 16-Tb/s (80×200- Gb/s) Nyquist DP-QPSK transmission over 10,000-km G .654E fiber with Raman amplification is experimentally demonstrated .

T1I.5 • 09:30 Broadband Capacitive-Loaded Thin-Film Lithium Niobate Modulator With on-Chip Terminal Resistor, Xuecheng Liu1, Bing Xiong1, Changzheng Sun1, Zhibiao Hao1, Lai Wang1, Jian Wang1, Yanjun Han1, Hongtao Li1, Jiadong Yu1, Yi Luo1; 1Tsinghua Univ., China. High-speed thin-film lithium niobate modulator with on-chip terminal resistor is demonstrated . The 6-mm-long modulator is equipped with capacitive-loaded travelling-wave electrodes, and exhibits a half-wave-voltage of 2 .7 V and a 3-dB modulation bandwidth exceeding 50 GHz .

10:30–11:00 Coffee Break & Poster Preview & Exhibition

T1H.4 • 09:45 Simultaneous Characterization of Polarization Skews and Electrical Channel Skews in Optical Coherent Transceivers, Wing-Chau Ng1, Yongfu Wang2, Xuefeng Tang1, Zhuhong Zhang1, Chuandong Li1; 1Huawei Technologies Canada, Canada; 2Huawei Technologies, China. An accurate calibration algorithm is proposed to simultaneously measure polarization and arbitrary electrical channel skews at transmitter and receiver . Experiment shows its robustness to polarization rotation, with ±0 .6 ps error over 30 ps range .

T1H.5 • 10:00 Symbol-Pattern-Dependent Adaptive Equalization and Maximum Likelihood Sequence Estimation with a Common Look-up-Table, Yi Cai1; 1Soochow Univ., USA. By employing a common look-up-table, we incorporate the feature of symbol correlation into both adaptive equalization and maximum likelihood sequence estimation . The scheme upgrades the transmission technology to a multi-symbol-oriented pattern- dependent equalization and detection regime .

T1I.6 • 09:45 New-Generation Ultra-low Loss Silicon Photonic Waveguide and Devices, Long Zhang1, Shihan Hong1, Yiwei Xie1, Daoxin Dai1; 1zhejiang Univ., China. We propose the concept of silicon photonics beyond the singlemode regime with ultra-low-loss propagation of 0 .065 dB/cm . The state-of-art micro-racetrack resonator, high-resolution microwave filter and 100-cm-long delayline are demonstrated with standard 220-nm-SOI (silicon- on-insulator) MPW-foundry processes

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T2A.1 • 10:30 Orbital Angular Momentum Fibres, Mode (De) Multiplexers, and SDM/MDM Transmission Experiments, Siyuan Yu1; 1State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Engineer- ing, Sun Yat-sen Univ., China. Recent break- throughs in the optical fibres, (de)multiplexing devices and SDM/MDM transmission based on the orbital angular momentum modes of light will be reviewed, achieving record transmission capacity and spectral efficiency with ultra-low MIMO complexity .

T2B.1 • 10:30 Failure Location and Prediction With Cross- Layer AI in Self-Optimized Optical Networks (SOON), Yongli Zhao1, Ke Tian1, Ying Wang2, Bing Zhang1, Zhuotong Li1, Zipiao Zhao1, Jie Zhang1; 1Beijing Univ of Posts & Telecom, China; 2State Grid Information & Telecommunication Company, China. Failure location and prediction are always important issues in optical transport networks, which can be resolved by cross-layer AI proposed in self-optimized optical networks . Some related works and experiment results have been given in this paper .

T2C.1 • 10:30 Title to be Announced, Zhensheng Jia1; 1Cable- Labs, USA. Abstract not available .

T2D.1 • 10:30 Ultra-Fast Silicon Optical Modulators and Pho- todetectors Operating Beyond 100 Gbaud, Xi Xiao1, Yuguang Zhang2,1, Xiao Hu2,1, Hongguang Zhang1, Daigao Chen2,1, Lei Wang2,1, Shaohua Yu2,1; 1National Information Optoelectronics In- novation Center, China; 2State Key Laboratory of Optical Communication Technologies and Networks, China Information Communication Technologies Group Corporation, China. We demonstrate several novel silicon optical modulators and photodetectors, such as 67 GHz Si3N4- coupled Ge photodetector, 90 GHz microring modulator, and et . al . Silicon-based optical link operating >100 Gbaud will also be presented .

T2E.1 • 10:30 Silicon-Based on-Chip Bragg Gratings and its Applications in Microwave Photonics, Weifeng Zhang1; 1Beijing Inst. of Technology, China. Fiber Bragg gratings, as a versatile optical filter, is widely used in optical communication and sensor systems . With the rapid development of silicon photonics technology, waveguide Bragg gratings has become a hot research topic . In this talk, different silicon-based on-chip waveguide Bragg grating will be reviewed with an emphasis on reconfigurable gratings, and their applications in microwave photonics will be discussed .

T2A.2 • 11:00 LP01-LP31 Mode Converter Based on Helical Long-Period Grating Inscribed in Six-Mode Fiber Using CO2-Laser, Weidong Zhang1, Chen Jiang1, Yuehui Ma1, Xinyi Zhao1, Yunqi Liu1, Lei Shen2, Lei Zhang2, Jie Luo2; 1Shanghai Univ., China; 2Yangtze optical fiber and cable joint stock limited company, China. We fabricate the LP01-LP31 mode converter based on helical long-period grating inscribed in six-mode fiber using CO2-laser . The results show that the mode converter has the maximum conversion efficiency of over 90% .

T2B.2 • 11:00 Machine Learning Assisted Accurate Estimation of QoT Impairments of Photonics Switching System on 400ZR, Ihtesham Khan1, Lorenzo Tunesi1, Muhammad Umar Masood1, Enrico Ghil- lino2, Paolo Bardella1, Andrea Carena1, Vittorio Curri1; 1Politecnico di Torino, Italy; 2Synopsys, USA. We propose a machine learning-based technique that accurately estimates quality-of- transmission (QoT) impairments of an optical switch on 400ZR . The proposed scheme works in an entirely agnostic way reduces inaccuracy in QoT impairments estimation by 1 .5dB .

T2C.2 • 11:00 Standardization and Application of Port- Agnostic WDM Technique in Metro Access Layer Network, Shikui Shen1; 1China Unicom, Hong Kong. Tunable laser based port-agnostic WDM technique was standardized and deployed in metro optical access layer network for 5G and integrated access services, and lambda as a service and pay as you grow could be achieved . The practices in China Unicom is introduced in the talk .

T2D.2 • 11:00 2.5D Optoelectronic Integration for 400G (8×56Gbps) CPO-Based Optical Interconnects, Xuecheng Yang1, Jiangbing Du1, Jiacheng Liu1, Xinyi Wang1, Ningfeng Tang2, Yingchun Shang3, Zuyuan He1; 1Department of Electronic Engineer- ing, Shanghai Jiao Tong Univ., China; 2ZTE Corp., China; 3ZTE Corp., China. A proof-of-concept 2 .5D optoelectronic integration solution for CPO applications is demonstrated, based on organic substrate, silicon photonics, flip-chip . Pre-FEC BER under 0 .02 is obtained for 56Gbps OOK signals, indicating feasibility for 400G .

T2E.2 • 11:00 Large-Scale Quantum Photonic Processors, Jelmer Renema1,2; 1QuiX B.V., Netherlands; 2Univ. of Twente, Netherlands. Recently, Quix Quantum realized the largest quantum photonic processor (tunable multimode interferometer) to date . In this talk, I will discuss the operation and characterization of this processor . I will discuss the demonstration of high fidelity optical transforma- tions and quantum interferene, and present our roadmap for the future .

10:30–12:00 T2A • OAM in Fibers Presider: Qiwen Zhan, University of Shanghai for Science and Technology, China

10:30–12:00 T2B • Machine Learning in Optical Networks Presider: Danshi Wang, Beijing University of Posts & Telecom, China

10:30–12:00 T2C • Physical Layer Driven Optical Networking Presider: Zeshan Chang, Huawei Technology, China

10:30–12:00 T2D • Silicon Photonics II Presider: To Be Announced

10:30–12:00 T2E • Integrated Photonics Presider: Jiejun Zhang, Jinan Universality, China

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T2F.1 • 10:30 Colloidal Quantum Dot Infrared Solar Cells for Harvesting the Low-Energy Photons, Jianbing Zhang1; 1Huazhong Univ. of Science and Technology, China. Colloidal quantum dots with bandgaps below 1 .1 eV are used to frabricate infrared solar cells that can harvest the low-energy infrared photons and pair with conventional solar cells in tandem configuration . A variety of strategies are developed to suppress the surface trap states and improve the device performance .

T2F.2 • 11:00 Title to be Announced, Gaoling Yang1; 1Beijing Inst. of Tech- nology, China. Abstract not available .

T2G.1 • 10:30 Single-Molecule Localization Super-Resolution Microscopy and Its Applications, Leiting Pan1; 1Nankai Univ., China. Based on single-molecule localization super-resolution microscopy, we revealed an ~80-nm spectrin tetramer length in native erythrocyte cytoskeleton, as well as elucidated e a novel, fast, reversible assembly of the vimentin cytoskeleton induced by hypotonic stress .

T2G.2 • 11:00 Organic Semiconducting Probes for Superresolution Imag- ing and in Vivo Imaging, Changfeng Wu1; 1Southern Univ of Science & Technology, China. Highly fluorescent polymer dots was developed for biological imaging . The hydrophobic semiconductor polymers tend to form small, stable and densely- packed Pdots, which exhibited large absorption cross section, high fluorescence quantum yields, and good biocompatibility for superresoluition imaging and in vivo imaging .

T2H.1 • 10:30 Tb/s Transmission in Sustainable and Flexible Metro Net- works Using Long-Wavelength VCSELs, Pierpaolo Boffi1, Paola Parolari1, Alberto Gatto1, Mariangela Rapisarda1, Federico Lipparini1, Michela Svaluto Moreolo2, Josep Maria Fabrega2, Christian Neumeyr3, Giovanni Delrosso4, Benjamin J . Puttnam5, Massimiliano Severi6, Giorgio Parladori6; 1Politecnico di Milano, Italy; 2Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Spain; 3Vertilas GmbH, Germany; 4VTT Techni- cal Research Center of Finland, Finland; 5NICT - National Inst. of Information and Communications Technology, Japan; 6SM Optics, Italy. Tb/s transmission for future metropolitan networks is demonstrated thanks to an innovative photonic cost-effective and energy-efficient transmitter module integrating multiple directly modulated long-wavelength InP VCSELs targeting more than 50-Gb/s per channel, together with multi-core fiber propagation .

T2H.2 • 11:00 Demonstration of 100Gb/s/λ 32QAM-DMT Transmission in Intra-DCI Using 10G-Calss EML Modulator and 4-bit DAC, Mingzhu Yin1, Zhibin Luo1, Dongdong Zou1, Xingwen Yi1, Zhaohui Li1, Fan Li1; 1Sun Yat-Sen Univ., China. Enabled by fast-precoding DFT-S for PAPR suppression and noise-shaping technique for redistribution of quantization-noise in signal quantization with 4-bit DAC, a low-cost 100Gb/s short-haul Intra-DCI using 10G-class EML modulator and 4-bit DAC is experimentally demonstrated in this paper .

T2I.1 • 10:30 Silicon DC Kerr Modulator Enhanced by Slow Light for 112 Gbit/s PAM4., Penghui Xia1, Hui Yu1, Qiang Zhang1, Xiaofei Wang1, Zhilei Fu1, qikai huang1, Xiaoqing Jiang1, Jianyi Yang1; 1College of Information Science and Electronic Engineering, Zhejiang Univ., China. We demonstrate a silicon modulator based on DC-Kerr effect enhanced by slow light . The measured modulation efficiency, 3 dB electro-optic bandwidth and data rate are 0 .85 V*cm, 30 GHz and 112 Gbit/s PAM4, respectively .

T2I.2 • 10:45 High Performance Parametric Spectro-Temporal Analyzer Assisted by a Soliton Microcomb, Hao Hu1, Ningning Yang1, Weiqiang Wang2,3, Liao Chen1, Chi Zhang1, Wenfu zhang2,3, Xin- liang Zhang1; 1HUST, China; 2XIOPM, China; 3Univ. of Chinese Academy of Sciences, China. We experimentally demonstrated a high performance parametric spectro-temporal analyzer . Assisted by a soliton microcomb, it achieved a resolution of 4 pm, a bandwidth of 13 nm and the tunable frame rate from kHz to MHz .

T2I.3 • 11:00 High-Resolution Spatial Profile Reconstruction Enabled by Dual-Comb Fiber Bragg Grating Array Sensing, Jingyuan Hu1, Jiansheng Liu1, Jianjun Yang1, Xin Zhao1, Xinyue Zhang1, Liang Wang2, Hongfeng Shao1, Zheng Zheng1; 1Beihang Univ., China; 2North Automatic Control Technology Inst., China. High-resolution, real-time spatial profile reconstruction based on an identical weak reflection FBG array demodulated by the dual-comb method is demonstrated, facilitated by its mm-level spatial resolution and kHz measurement speed .

10:30–12:00 T2F • Quantum Dots for Energy Presider: To Be Announced

10:30–12:15 T2G • Super-resolution Microscopy I Presider: Tongsheng Chen, South China Normal University, China

10:30–12:00 T2H • DML-Enabled Systems

10:30–12:30 T2I • Best Student Papers IV Presider: To Be Announced


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Tuesday, 26 October








T2A.3 • 11:15 The Consecutive Generation of the +1st

and −1st Order Orbital Angular Momentum Modes Based on a Chiral Long-Period Fiber Grating Cascaded With Opposite Helicities, Xiongfeng Rao1,2, Qiming Ban1,2, Xu Deng1,2, Li Yang1,2; 1Department of Electronic Engineering and Information Science, Univ. of Science and Technology of China, China; 2Key Laboratory of Electromagnetic Space Information, Chinese Academy of Sciences, China. We propose and fabricate a novel chiral long-period fiber grating cascaded with opposite helicities (CLPG-OH) for the consecutive generation of the +1st and −1st

order orbital angular momentum (OAM) modes in a specific wavelength range .

T2A.4 • 11:30 Optical Fiber-Generated Vector Beams for BGO-Crystal Based Magnetic Field Sensing, Pengchong Wang1, Lina Xiang1, Yunzhe Gu1, Yana Shang1, Liang Zhang1, Heming Wei1, Fufei Pang1; 1Shanghai Univ., China. We demonstrated magnetic field sensing based on the magneto-optic effect of optical fiber-generated vector beams in BGO crystal . A sensitivity of 9 .1%/T is obtained by utilizing a slit and optical power measurement .

T2A.5 • 11:45 Splice Loss Characterization of High Order OAM Modes in Ring-Core Fibers, Cong Huang1, Junyi Liu1, Jie Liu1, Siyuan Yu1; 1Sun Yat-sen Univ., China. The fusion splice loss characteristics based on Rayleigh back-scattering in a ring-core fiber are experimentally demonstrated . The tolerance of the ring core fiber towards fusion splice loss is similar to that of few mode fibers .

T2B.3 • 11:15 Machine Learning Assisted Hardware Finger- print Identification for TDM-PON From Eye- Diagram, Huiyuan Gong1, Mengfan Cheng2,3, Weidong Shao2,3, Hongyu Li2,3, Lei Deng2,3, Qi Yang2,3, Deming Liu2,3; 1Wuhan Research Inst. of Posts and Telecommunications, China; 2Research Inst. of Huazhong Univ. of Science and Technol- ogy in Shenzhen, China; 3National Engineering Laboratory for Next Generation Internet Access System (NGIA), School of Optical and Electronic Information, Huazhong Univ. of Science and Technology (HUST), China. We propose and experimentally demonstrate a hardware identity authentication technique for TDM-PON based on feature identification from eye diagram . The results show that the recognition accuracy can be up to 99% .

T2B.4 • 11:30 Predictive Uncertainty Aware Active Learning for Regression-Based QoT Estimation in Optical Networks, Zheng Li1, Zhiqun Gu1, Jiawei Zhang1, Yuhang Zhou1, Yuefeng Ji1; 1Beijing Univ. of Posts and Telecomm, China. We propose an active learning strategy for regression-model-based QoT estimation to achieve higher accuracy with fewer samples . Results show that our strategy decreases 35 .8% MSE on average than traditional method with the restricted sample size .

T2B.5 • 11:45 Excellent Performance Robustness of Flexible Drop Operations of DSP-Switched ROADMs Ex- cluding Optical Filters and O-E-O Conversions, Mingliang Deng1, Zhirui Luo1, Zhibo Xing1, Timera Mamadou1, Jingwei Shi1, Lian Qing1, Jiacheng Bai1; 1CQUPT, China. DSP-Switched ROADM drop operation performances are extensively explored against variations in MZM operating characteristics . Numerical results show that the drop operations have excellent performance robustness, which can be further improved with longer digital filter lengths .

T2C.3 • 11:30 Title to be Announced, Liangjia Zong1; 1Hua- wei Technologies Co Ltd, China. Abstract not available .

T2D.3 • 11:15 70 Gbit/s Optical NRZ Modulation Based on Silicon Photonic Crystal Modulator, Yuguang Zhang2,1, Dingyi Wu2, Lei Wang2,1, Xi Xiao2,1; 1Wuhan Research Inst of Post & Telecom, China; 2National Information Optoelectronics Innovation Center, China Information and Communication Technologies Group Corporation (CICT), Wuhan 430074, Hubei, China, China. We present an ultrahigh speed silicon photonic crystal modulator with the 3-dB electro-optical bandwidth of 38 .6 GHz . Based on the ultra-compact silicon photonic crystal modulator, modulation of 70 Gbit/s NRZ signal is experimentally demonstrated .

T2D.4 • 11:30 A 4×100 Gb/s DWDM Optical Link With all- Silicon Microring Transmitters and Receivers, Yuan Yuan1, Wayne V . Sorin1, Stanley Cheung1, Yiwei Peng1, Di Liang1, Zhihong Huang1, Marco Fiorentino1, Raymond G . Beausoleil1; 1Hewlett Packard Labs, USA. We prove the feasibility of an all-Silicon, Germanium-free, high-speed dense wavelength division multiplexing optical link using a 4-channel 100 Gb/s microring modulator array and a 100 Gb/s microring photodiode .

T2D.5 • 11:45 1300 nm and 1500 nm InAs/GaAs Quantum dot Lasers Directly Grown on SOI Substrates for Silicon Photonics Integration, Qi W . Wei1; 1Songshan Lake materials laboratory, China. By using (111)-faceted silicon hollow structures, high- performance 1300 nm and 1500 nm InAs/GaAs quantum dot lasers are epitaxially grown and fabricated on SOI substrates by an III-V/IV dual chamber MBE for silicon photonics integration .

T2E.3 • 11:30 Simultaneous All-Optical XOR and XNOR Logic Gates in Highly Nonlinear Organic-Silicon Hy- brid Slot Waveguide, Piaopiao Ye1; 1Shenzhen Univ., China. We have experimentally demonstrated all-optical XOR and XNOR gates at 40 Gb/s based on the non-degenerate four-wave mixing in a 3 mm long highly nonlinear organic-silicon hybrid slot waveguide, providing great potential for future applications in all-optical networks .

T2E.4 • 11:45 Neuromorphic Binary Convolution and Pyra- midal Neuron-Like Dynamics Dominated by Dendritic Action Potentials Based on a VCSEL, Yahui Zhang1, Shuiying Xiang1,2, Xingxing Guo1, Aijun Wen1, Yue Hao2; 1State Key Laboratory of Integrated Service Networks, Xidian Univ., China; 2State Key Discipline Laboratory of Wide Bandgap Semiconductor Technology, Xidian Univ., China. Neuromorphic binary convolution and pyramidal neuron-like dynamics dominated by dendritic action potentials based on a VCSEL are proposed and demonstrated experimentally . This work shows potentials for image gradient magnitudes calculation and exclusive OR operation

11:45-13:30 Lunch Break

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T2H.3 • 11:15 Crosstalk and Power Fading in a WDM-RoF Based MFN Using Directly Modulation 3s-DBR Laser, Haixuan Xu1, Yao Zhu1, Yuze Wu1, Colm Browning2, Liam Barry2, Yonglin Yu1; 1Wuhan National Laboratory for Optoelectronics, Huazhong Univ. of Science and Technology, China; 2The RINCE Inst., Dublin City Univ., Ireland. We experimentally investigate a RoF-based MFH for 5G system with a tunable 3s-DBR laser . Transmission performance of 12 channels and 16 channels of 211 MHz-bandwidth f-OFDM signals with 16QAM over SSFM are evaluated and compared .

T2I.4 • 11:15 Coherently Octave-Spanned Soliton Laser Comb Using Nonlinearly Merged Kelly Sidebands, Chun Wang1, Bing Chang1, Handing Xia2, Teng Tan1,3, Yunjiang Rao1,3, Baicheng Yao1; 1Univ of Electronic Science & Tech China, China; 2Research Center of Laser Fusion, China Academy of Engineering Physics, China; 3Research Center for Optical Fiber Sensing, Zhejiang Laboratory, China. A mode-locked fiber soliton laser comb using Raman amplified asymmetric Kelly radiation is reported . It directly demonstrates an all-in-one plug-and-play device with octave-span spectrum (1100-2200nm), >3 .2 nJ pulse energy and -168 dBc/Hz@10 kHz phase noise .

T2F.3 • 11:30 Lanthanide-ion Doped Perovskite Nanocrystals with Tailored Optical and Structural Properties, Shuyu Zhang1; 1Fudan Univ., China. In this talk, we present that monochromatic lanthanide-ion doped perovskite nanocrystals have tailored optical behaviors and structural properties governed by completely different mechanisms instead of traditional energy transfer or photon up-conversion .

T2G.3 • 11:30 Super-Resolution Fluorescence Polarization Microscopy and its Biological Applications, Hao Zhang1; 1Southern Univ. of Science and Tech, China. Fluorescent dipoles reflect the spatial orientation of the fluorophores . However, the Abbe’s diffraction limit deteriorates the imaging accuracy of both position and orientation of the fluorescent dipoles . We developed several super-resolution tools to image the molecular orientation of fluorophores .

T2H.4 • 11:30 High-Speed Spectral-Scanning FMCW LiDAR System Based on Tunable VCSEL, Yaqi Han1, Zhi Li1, Lican Wu1, H .Y . Fu1; 1Tsinghua-Berkeley Shenzhen Inst., China. We demonstrate an ultrafast spectral-scanning LiDAR system by utilizing a compact tunable VCSEL . The proposed system can realize the two-dimensional beam scanning with 8 kHz sweep rate and millimeter-level ranging precision simultaneously .

T2I.5 • 11:30 CdSe Thin Film Solar Cell, Xuke Yang1, Chao Chen1, Kanghua Li1, Yue Lu1, Jiang Tang1; 1Huazhong Univ. of Science and Technology, China. Tandem solar cells are an effective way to improve the power conversion efficiency (PCE) of silicon solar cells . We constructed CdSe solar cells with PCE of 3 .91%, which demonstrate a great potential in Si-based tandems .

T2F.4 • 11:45 Signal Demodulation Method Based on Amplitude Detec- tion for Distributed Wide-Frequency Domain Optical Fiber Sensing, Qian Chen1, Zhiguo Wang1, Hongqiang Chang1, Hongdan Wan1; 1Nanjing Univ. of Posts&telecomm, China. The paper proposed a distributed broadband demodulation method of optical fiber sensing signal based on amplitude detection . Realization of 2Hz~2 .5kHz vibration signal demodulation with <±5% error and analysis of pipeline leakage signal .

T2G.4 • 12:00 Deconvolution of Non-Diffracting Beam Based Confocal Two-Photon Microscopy, Canice C . Yiu1,2, Hongsen He1, Ryan K . Chan1, Emmett Lam1, Kenneth Kin-Yip Wong1,2; 1The Univ. of Hong Kong, Hong Kong; 2Advanced Biomedical Instrumenta- tion Centre Limited, Hong Kong. We demonstrated image quality enhancement by deconvolution for non-diffracting beam confocal two-photon microscopy . Through a custom Bessel/Airy point spread function (PSF) and Richardson-Lucy algorithm, we

T2H.5 • 11:45 Demonstration of All-Digital Burst Clock and Data Recovery for Symmetrical Single-Wavelength 50G PON Application Using Low-Bandwidth Optics, Jiao Zhang1,2, Qingyi Zhou1, Min Zhu1,2, Xiang Liu1,2, Bingchang Hua2, Yuancheng Cai1,2, Mingzheng Lei2, Liang Tian2, Yucong Zou2, Aijie Li2; 1South- east Univ., China; 2Purple Mountain Laboratories, China. We experimentally demonstrated all-digital burst clock and data recovery for symmetrical 50-Gb/s/λ PON using low-bandwidth optics over the same fiber link to support over 26 dB power budget . The performances of uplink burst-mode is studied .

achieved ≥7 .0 dB increase in signal-to-background ratio (SBR) . 11:45-13:30 Lunch Break

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T3A.1 • 13:30 Title to be Announced, Haiwen Cai1; 1Shanghai Inst of Optics and Fine Mech, China. Abstract not available .

T3A.2 • 14:00 A Detection Scheme of Abnormal Sound Events on Highway Based on Φ-OTDR, Yiming Hong1,2, Bingyao Cao1,2, Kechen Yuan1,2; 1Key laboratory of Specialty Fiber Optics and Optical Access Networks, China; 2Joint International Research Labora- tory of Specialty Fiber Optics and Advanced Communication, Shanghai Univ., China. Based on Φ-OTDR technology, optical fiber attached on the guardrail surface is used to detect highway abnormal events . The results come out good with variable-weight-election logistic regression algorithm in low- cost real-time system .

T3B.1 • 13:30 Nonlinearity-Tolerant Multidimensional Modulation Formats for High Speed Optical Communications, Bin Chen1; 1Hefei Univ. of Technology, China. Performance trade-offs between linear shaping and nonlinear tolerance of the recently introduced 4D and 8D modulation formats are investigated . Numerical simulations and experiments show an increased nonlinear tolerance and improved transmission distance with respect to coventional modualtion formats .

T3B.2 • 14:00 A Constellation-Shaped 127QAM Scheme Based on Geo- metric Shaping, Xiangyu Liu1, Qi Zhang1, Ran Gao2, Xiangjun Xin1, Xishuo Wang1, Huan Chang2, Bingchun Liu3, Wenmao Zhou1, Feng Tian1, Qinghua Tian1, Zhipei Li2; 1Beijing Univ. of Posts and Telecomm, China; 2School of information and electronics, Beijing Inst. of Technology, China; 3School of Man- agement Tianjin Univ. of Technology, China. A novel constellation-shaped 127QAM scheme based on geometric-shaping is proposed . In a 140-Gb/s simulation system, the proposed scheme has a 0 .87dB OSNR gain and a 186km transmission- distance gain at 2e-2 BER, compared with uniform-128QAM .

T3C.1 • 13:30 PON for Fiber to the Room, Frank Effenberger1, Yuanqiu Luo1; 1FutureWei Technologies Inc, USA. Now that fiber to the home (FTTH) is commonplace, the industry looks to extend its reach into the home, and fiber to the room (FTTR) has come into focus . This paper outlines such systems, and a method to leverage the PON control plane is highlighted .

T3C.2 • 14:00 OneM2M IoT Platform for SDN Control of Optical Networks, Martina Troscia2, Andrea Sgambelluri2, Francesco Paolucci1, Piero Castoldi2, Paolo Pagano1, Filippo Cugini1; 1CNIT, Italy; 2Scuola Superiore Sant’Anna, Italy. The first implementation of the OneM2M IoT platform used to control optical networks is presented . The platform provides remarkable scalability performance particularly as a function of the number of monitored devices .

T3D.1 • 13:30 Tutorial Photonic-Crystal Surface-Emitting Lasers: From Fundamen- tal to the State of the Arts, Susumu Noda1; 1Kyoto Univ., Japan. Photonic-crystal surface-emitting lasers (PCSELs) are an unprecedented type of semiconductor laser that can operate in a single longitudinal and lateral mode over a broad area (>1mm in a resonant diameter) . In this conference, I will make a tutorial talk on PCSELs from fundamental to the state of the arts .

13:30–15:30 T3A • Fiber Sensors I Presider: Huilian Ma, Zhejiang University, China

13:30–15:30 T3B • Advanced Modulation Formats Presider: Jianjun Yu, Fudan University, China

13:30–15:30 T3C • Optical and Wireless Converged Networks Presider: Huilian Ma, Zhejiang University, China

13:30–15:30 T3D • Optical Sensing Presider: To Be Announced

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T3E.1 • 13:30 Fast Self-Adaptive Generic Digital Linearization for Analog Microwave Photonic Systems, Peixuan Li1; 1Southwest Jiaotong Univ., China. In this talk, we propose and experimentally demonstrate a new digital linearization strategy for microwave photonic system, distinguished by the feature of fast self-adaptivity to various MWP systems with diverse input signals, with no need of prior system or signal parameters, complex training, or iterative optimization processes .

T3F.1 • 13:30 Deep-Learning Fluorescence Microscopy for Capturing Biological Dynamics at High Spatiotemporal Resolution, Peng Fei1; 1Huazhong Univ. of Sci and Tech, China. Insufficient spatiotemporal performance is the major weakness of current 3D fluorescence microscopy . We report deep learning-enhanced fluorescence microscopy that can reconstruct dynamic signals at high spatiotemporal resolution .

T3G.1 • 13:30 Tutorial Ultralong-Distance Undersea Transmission Systems, Jin-Xing Cai1; 1TE SubCom, USA. Abstract not available .

T3E.2 • 14:00 The Diamond Mesh, a Phase-Error- and Loss-Tolerant Field-Programmable MZI- Based Optical Processor, Odile Liboiron-Ladouceur1; 1McGill Univ., Canada. This talk presents the performance analysis of the Diamond Mesh, a multiport MZI-based symmetric structure, that provides additional degrees of freedom in the weight optimization . The topology exhibits fabrication robustness allowing for better classification accuracy .

T3F.2 • 14:00 Imaging Cleared Tissues Using Tiling Light Sheet Microscopy and a Strategy to Understand Intelligence, Liang Gao1; 1Westlake Univ., China. We developed a tiling light sheet microscope for 3D multicolor imaging of cleared tissues, and we describe a solution to decode large scale neural network using tissue clearing techniques and tiling light sheet microscopy .

13:30–15:30 T3E • Microwave Photonic Signal Processing Presider: Dan Zhu, Nanjing University Aeronautics & Astronautics, China

13:30–15:30 T3F • Lightsheet Microscopy and Deep Imaging Presider: Changfeng Wu, Southern University of Science & Technology, China

13:30–15:30 T3G • Coherent DSP Presider: Yi Cai, Soochow University, China

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T3A.3 • 14:15 Multi-Channel Quasi-Distributed Acoustic Sensing Based on Spatial Division Multiplexing and Time-Gated OFDR, Yuanpeng Deng1, Qingwen Liu1, Yanming Chang1, Zuyuan He1; 1Shanghai Jiao Tong Univ., China. In this work, two weak reflector arrays are interrogated simultaneously using spatial division multiplexing and TGD-OFDR techniques . Vibrations on the two channels are detected with ignorable cross-talk .

T3B.3 • 14:15 Gaussian Mixture Model Clustering Algorithm for a Proba- bilistic Shaping 64QAM Coherent Optical Communication System, Hui Xu1, Yongjun Wang1, Chao Li1, Xiangjun Xin1; 1Beijing Univ. of Posts and Telecommunications, China. In this paper, a Gaussian Mixture Model (GMM) clustering algorithm with initial means is proposed . The experiment results show that the proposed algorithm can significantly improve the performance of probabilistic shaping (PS) 64QAM .

T3C.3 • 14:15 Real-Time Demonstration of Fiber-to-the-Room for >1Gb/s Home Networking With Guaranteed QoS and Fast Roam- ing, Xuming Wu1, Yan Zeng1, Jianfei Liu1, Philippe Chanclou2; 1Huawei Technologies Co Ltd, China; 2Orange Labs, France. We experimentally demonstrate a Gb/s-level fiber-based P2MP home network with fast roaming via coordinated multipoint . In addition, the QoS of low-latency services is guaranteed via AI-based service acceleration, reducing the end-to-end latency by over 8 times to 50 ms .

T3D.2 • 14:15 Title to be Announced, Linjie Zhou1; 1Shanghai Jiao Tong Univ., China. Abstract not available .

15:30–17:30 Poster Session Coffee Break Exhibition

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T3G.2 • 14:15 Low-Complexity Frequency Offset Estimation Based on Training Symbol for NFDM Systems, Yanfeng Bi1, Hengying Xu1,2, Chenglin Bai1,2, Weibin Sun1,2, Lishan Yang1,2, Xinkuo Yu1, Xueyuan Luo1, Lingguo Cao1; 1School of Physics Science and Information Engineering, China; 2Shandong Provincial Key Laboratory of Optical Communication Science and Technology, China. We propose a low-complexity frequency offset estimation scheme based on training symbol for NFDM systems . It achieves FOE error of less than 1MHz within range of ±1GHz, whose complexity is related with the training symbol .

15:30–17:30 Poster Session Coffee Break Exhibition

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T3A.4 • 14:30 Large-Scale Multiplexed in-Fiber Micro-Cavity Array for Distributed High Temperature Sensing, Bin Du1, Jun He1, Kuikui Guo1, Xizhen Xu1, Yiping Wang1; 1Shenzhen Univ., China. We demonstrated a femtosecond laser-induced in-fiber microcavity array (MCA) for distributed high temperature sensing . The temperature response from room temperature to 1000 °C of the MCA was investigated, and a temperature demodulation accuracy of 0 .49 °C was successfully achieved .

T3A.5 • 14:45 Dual-Mode Heterodyne gas Tracing in a Graphene-Based Fiber Laser Microresonator, Yanhong Guo1, Ning An1,2, Yiwei Li1, Teng Tan1,2, Yiping Wang3, Yunjiang Rao1,2, Baicheng Yao1,2; 1Univ of Electronic Science & Tech China, China; 2Research Centre of Optical Fiber, Zhejiang Laboratory Sensing, China; 3Guangdong and Hong Kong Joint Research Center for Optical Fiber Sensors, Shenzhen Univ., China. By combining monolayer graphene in an erbium-doped D-shaped fiber DBR, we achieve both Q-switching and cavity-oscillation mode lasers in an all- in-one fiber-optical device, label-freely detecting NH3 and CO2

gas in mixture with nM/L sensitivity .

T3A.6 • 15:00 Simultaneous Pressure and Temperature Measurement System for Flexible Ureteroscope Lithotripsy, Yanjin Zhao1, Ningfang Song1, Fuyu Gao1, Xiaobin Xu1; 1BUAA, China. For real-time pressure and temperature monitoring during flexible ureteral lithotripsy, a optical fiber sensor based on the Fabry- Pérot cavity and a synchronous decoupling detection system are proposed to realize the high-sensitivity and quick-response measurement .

T3A.7 • 15:15 Relative Humidity Sensor Based on Graphene Oxide-Coated D-Shaped Fiber and Polarimetric Heterodyning Demodula- tion, Kuikui Guo1, Jun He1, Yiping Wang1; 1Shenzhen Univ., China. We demonstrate a polarimetric fiber laser system for relative humidity (RH) sensing based on the beat frequency demodulation . The RH sensor probe was fabricated by the graphene oxide-coated D-shaped fiber . It exhibits a sensitivity of 34 .7 kHz/RH% in a RH range of 30%-98% .

T3B.4 • 14:30 Artificial Neural Networks-Assisted Geometric Shaping Optimization Including Gray-Like Mapping, Xiang Liu1,2, Jiao Zhang1,2, Min Zhu1,2, Bingchang Hua2, Yucong Zou1,2, Qinru Li1, Yingxin Wei1, Weidong Tong1, Yuancheng Cai1,2, Mingzheng Lei2, Liang Tian2, Aijie Li2; 1Southeast Univ., China; 2Purple Mountain Laboratories, China. Artificial Neural networks- based geometric shaping is proposed that includes Gray-like mappings . Over 0 .2dB gain in GMI and BER improvement is achieved over a wide range of SNRs without requiring any presumed model for the channel .

T3B.5 • 14:45 Up to 16384-QAM IFoF Transmission With DML Based on 2-Bit High-Pass Delta-Sigma Modulation, Yixiao Zhu1, Longjie Yin1, Qi Wu1, Lina Man1, Yiming Tao1, Weisheng Hu1; 1Shanghai Jiao Tong Univ., China. We design a 2-bit high-pass delta-sigma modulator based on 4th-order cascaded resonator feedback structure, and experimentally demonstrate IFoF transmission of 1 .88GHz bandwidth 16384-QAM in 32Gb/s DML-DD link . 0 .58% EVM is achieved after 20km SSMF transmission .

T3B.6 • 15:00 QPSK-Partition Assisted Frequency Offset Estimation for Probabilistically Shaped Coherent Optical Communication Systems, Xue Tang1,2, Lishan Yang1,2, Hengying Xu1,2, Chenglin Bai1,2, Weibin Sun1,2, Xinkuo Yu1, Lingguo Cao1, Xiuhua Lv1, peng Qin1; 1School of Physics Science and Information Engineering, Liaocheng Univ., China; 2Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng Univ., China. A QPSK-partition assisted frequency offset estimation scheme is proposed for probabilistically shaped coherent systems . High FOE accuracy can be achieved under conditions of moderate/strong shaping . The complexity of this scheme is reduced to O(N) .

T3B.7 • 15:15 Pilot-Free Bayesian Filter for Phase Noise Correction of 64QAM CO-OFDM Superchannel, Lakshmi Narayanan Venkatasubramani1, Yi Lin2, Colm Browning2, Anirudh Vijay1, R David Koilpillai1, Liam Barry2, Deepa Venkitesh1; 1Indian Inst. of Technology Madras, India; 2Dublin City Univ., Ireland. We experimentally demonstrate the use of a pilot-free phase noise mitigation algorithm for a gain-switched comb-based 480 Gbps 64QAM CO-OFDM superchannel system using weighted-blind estimation and Bayesian filter with 18% potential improvement in spectral efficiency .

T3C.4 • 14:30 Flexible Visible Light Communication Based on Probabilistic Constellation Shaping and Orthogonal Superposition Modu- lation, Ruizhe Jin1, Zhanhong Zhou1, Yiheng Zhao1, Sizhe Xing1, Fangchen Hu1, Junwen Zhang1, Nan Chi1; 1Fudan Univ., China. A flexible visible light communication system based on probabilistic constellation shaping and orthogonal superposition modulation is proposed and demonstrated . Compared with non-PCS solution, it has a maximum 49% capacity improvement and achieves 3 .34Gbps CoMP net-data-rate .

T3C.5 • 14:45 Neural Architecture Search-Enabled Deep Reinforcement Learning for Slice Deployment in a Converged Optical- Wireless Access Network, Ruikun Wang1, Jiawei Zhang1, Zhiqun Gu1, Zhuo Chen1, Yuefeng Ji1; 1Beijing Univ. of Posts and Telecommunications, China. We propose a neural architecture search-enabled deep reinforcement learning (NAS-DRL) for RAN slice deployment in a converged optical-wireless access network . Simulation results validate its superiority in resources saving and DRL retaining times .

T3C.6 • 15:00 End-to-End Multi-Connection Partial Protection Scheme Ensuring Tolerable QoS in Optical and Wireless Converged Networks, Lu Zhang1, Xin Li1, Ying Tang1, Jingjie Xin1, Ji- anghua Wei1, Shanguo Huang1; 1Beijing Univ. of Posts and Telecommunications, China. A connectivity-aware end-to-end multi-connection partial protection scheme is proposed to ensure reliable transmission under acceptable QoS . A genetic algorithm based heuristic algorithm is developed to greatly reduce blocking probability and resource consumption than full protection .

T3C.7 • 15:15 Best Spectral Spacing for 90 GBaud WDM Carriers, Thi- erry Zami1, Bruno lavigne1; 1Nokia Corporation, France. While transponders as fast as 90 GBaud emerge in meshed WDM networks, we examine how the related most performant inter- carrier spectral spacing depends on the filtering sharpness of WSS’s in OXCs that channels cross transparently

T3D.3 • 14:45 Wavelength Tunable Hybrid-Cavity Laser Based on Whisper- ing-Gallery Cavity in Potential for Sensing, Fangyuan Meng1, Hongyan Yu1, Xuliang Zhou1, Yejin Zhang1, Jiaoqing Pan1; 1Inst. Of Semiconductors, CAS, China. A hybrid-cavity laser consists of a square Whispering-Gallery microcavity and a Fabry-Perot cavity was demonstrated . A single-mode emitting laser with a wavelength tuning range over 7 .5 nm from 1775 .47 nm to 1783 .02 nm was obtained .

T3D.4 • 15:00 Hybrid 2D Beam Steering for Solid-State TOF Lidar, Chao Li1, Kan Wu1, Xianyi Cao1, Guangjin Zhang1, Xinwan Li1, Jian- ping Chen1; 1Shanghai Jiao Tong Univ., China. We present a solid-state light detection and ranging system with a hybrid beam-steering technology . A blind zone-suppressed TOF Lidar is demonstrated with a field of view of 0 .9°×8 .1°and a resolution point of 192 .

T3D.5 • 15:15 1024-Channel Passive Optical Phased Array With High An- gular Resolution, Guangzhen Luo1,2, Pengfei Wang1,2, Pengfei Ma1,2, Ruiting Wang1,2, Hongyan Yu1,2, Xuliang Zhou1,2, Yejin Zhang1,2, Jiaoqing Pan1,2; 1Key Laboratory of Semiconductor Materials Science, Inst. of Semiconductors, Chinese Academy of Sciences, China; 2Center of Materials Science and Optoelec- tronics Engineering, Univ. of Chinese Academy of Sciences, Beijing 100049, China, China. We have demonstrated a large- scale passive optical phased array (OPA) with 1024 channels, which has a spot divergence angle of less than 0 .1° . It can realize beam scanning through wavelength tuning .

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T3E.3 • 14:30 A Photonics-Assisted RF Self-Interference Cancellation System With an Improved Signal to Noise Ratio, Shuo Liu1, Kunlin Shao1, Fengting Cao1, Lu Li1, Yamei Zhang1, Shilong Pan1; 1Nanjing Univ Aeronautics & Astronautics, China. A photonics-assisted RF self-interference cancellation system with an improved signal to noise ratio (SNR) is proposed and demonstrated . The self-interference cancellation ratio of 32 dB and an improvement of SNR of 11 dB are achieved .

T3F.3 • 14:30 Break the Unbroken Limits Towards Super-Resolution Microscopy Using Photon Upconversion, Qiuqiang Zhan1; 1South China Normal Univ., China. Photon upconversion offers an exciting opportunity for biological super-resolution imaging . By optically controlling the upconversion fluorescence properties, we discovered efficient optical depletion and nonlinear emission, enabling subcellular super-resolution microscopy by breaking the unbroken traditional limitations .

T3G.3 • 14:30 Title to be Announced, Amirhossein Ghazisaeidi1; 1Nokia Bell Labs France, France. Abstract not available .

T3E.4 • 14:45 Photonics-Based Dual-Functional System for Microwave Signal Generation and Phase Noise Measurement, Zhidong Jiang1, Pei Zhou1, Renheng Zhang1, Kunxi Li1, Nianqiang Li1; 1Soochow Univ., China. Phase noise measurement of an OEO by an EML-based photonic-delay line method is demonstrated . A 9 .952-GHz signal is generated with a phase noise of -111 .45 dBc/Hz@10 kHz, and the noise floor reaches -135 dBc/Hz@10 kHz .

T3E.5 • 15:00 Enhancement of Optical Signal-to-Noise Ratio Based on Phase-Sensitive Amplifi- cation at Low Gain Levels, Zhirong Chen1, Xiaojie Guo2, Zhaohui Li1,3; 1Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Sys- tems, State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen Univ., China; 2Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Inst. of Photonics Technology, Jinan Univ., China; 3Southern Marine Science and Engineer- ing Guangdong Laboratory (Zhuhai), China. We experimentally investigated optical signal-to-noise ratio (OSNR) enhancement in phase-sensitive amplifiers (PSA) at low gain levels . With balanced input signal-idler powers and OSNRs, nearly 3-dB OSNR improvement is obtained in a PSA with a PS gain as low as 6 .4 dB, resulting in SNR improvement of 2 .4 dB for 20-GBaud QPSK signal .

T3E.6 • 15:15 The Second Order Harmonic Optoelectronic Mixing in Modified Uni-Traveling Carrier Photodetector, Dan Yang1, Yongqing Huang1, Xiaofeng Duan1, Kai Liu1, Yisu Yang1, Xiaomin Ren1; 1State Key Laboratory of Information Photonics and Optical Communications, Beijing Univ. of Posts and Telecommunications, Beijing, 100876, China, China. Optoelectronic mixing of 3 GHz optical signal with 60 MHz RF signal in a modified uni-traveling carrier photodetector is studied experimentally . The second-order harmonic optoelectronic mixing products were obtained and the mechanism was demonstrated .

T3F.4 • 15:00 Three-Dimensional Super-Resolution Microscopy in Thicker Specimens Using Adaptive Optics, Martin J . Booth1; 1Univ. of Oxford, UK. Adaptive optics facilitates super-resolution microscopy in thicker specimens by compensating aberrations arising from refractive index variations . We show imaging results from advanced super-resolution systems, including structured illumination, 4pi single molecule and 4pi isoSTED microscopes .

T3G.4 • 15:00 Mitigated Residual Phase and Performance Enhancement Using Improved Stokes Space Polarization Demultiplexing, Jie Tang1, Wanzhen Guo1, Jian Zhao1; 1South China Univ. of Technology, China. We investigate improved stokes-space polarization demultiplexing (SS-PDM) in coherent systems using Kalman-based CPR and show that the improved SS-PDM mitigates random phase jumps in conventional SS-PDM and thus improves the performance of the following CPR .

T3G.5 • 15:15 Receiver IQ Imbalance and Skew Compensation for High Order Modulation Formats by Frequency Domain 4x2 MIMO, Liang Junpeng1,2; 1ZTE Corporation, China; 2State Key Laboratory of Mobile Network and Mobile Multimedia Technol- ogy, China. We propose a modulation formats independent frequency domain 4x2 multi-input and multi-output (MIMO) equalizer, which can compensate receiver inphase and quadrature (IQ) imbalance and skew with lower complexity than time domain (TD) 4x2 MIMO .

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T4A.1 Packaged Microbottle Resonator for Flow Rate Sensing, Yiqi Chen1, Zijie Wang1, Yan Xie1, Yong Yang1, Qi Zhang1, Xiaobei Zhang1, Tingyun Wang1; 1Shanghai Univ., China. We demonstrate a flow rate sensor with high sensitivity by a packaged microbottle resonator, and the maximum flow rate sensitivity of 0 .285 pm/(m/s) is achieved by analyzing different resonant modes

T4A.2 1.65 µm Pulsed Fiber Laser Source Based on Deuterium- Filled Hollow-Core Photonic Crystal Fibers, Wenxi Pei1, Hao Li1, Meng Wang1, Zefeng Wang1; 1National Univ of Defense Technology, China. Here we report an all-fiber tunable 1 .65 μm pulsed gas Raman laser source based on deuterium-filled hollow-core photonic crystal fiber . The maximum Raman power of ~1 .18 W is obtained, the conversation efficiency is ~20 .69 % .

T4A.3 Build-up Dynamics of Dissipative Solitons in a Nonlinear Polarization Evolution Mode-Locked Fiber Laser, Deng- hui Pan1, Xuanyi Liu1, Boris Malomed2,3, H .Y . Fu1, Qian Li4; 1Tsinghua-Berkeley Shenzhen Inst. & Tsinghua Shenzhen Inter- national Graduate School, Tsinghua Univ., China; 2Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, and Center for Light-Matter Interaction, Tel Aviv Univ., Israel; 3Instituto de Alta Investigación, Universidad de Tarapacá, Chile; 4School of Electronic and Computer Engi- neering, Peking Univ., China. We report the build-up dynamics of dissipative solitons in a net-normal mode-locked fiber laser via time-stretch dispersive Fourier transform technique . In this report, five distinct transient stages are unveiled in the overall build-up process .

T4A.4 Fiber Optic RI Sensor Based on a Novel Mach-Zehnder Inter- ferometer, Chuanbiao Zhang2,3, Xiongyan Tang3, Min Zhang2, Shikui Shen3, Tigang Ning1, Li Pei1; 1Beijing Jiaotong Univ., China; 2Beijing Univ. of Posts and Telecommunications, China; 3China United Network Communications Group Company Limited, China. A novel compact fiber optic sensor fabricated by twin-core fiber (TCF) and multimode fibers (MMF) was proposed and demonstrated . The interference light generated in structures can be used for sensing applications . Through a variety of experiments, we have studied the sensing application of structure, and obtained a good sensing sensitivity .

T4A.5 Collision Dynamic Between Soliton Molecule and Single Soli- ton, Jiangyong He1, Mengjie Zhou1, Congcong Liu1, Dengke Xing1, Kaiyan Zhu1, Kun Chang1, Yange Liu1, Zhi Wang1, Yang Yue1; 1Nankai Univ., China. Our work reveals the complete dynamic process of elastic collision of single soliton and soliton molecule, especially the molecule disintegrating and reform . Numerical simulation shows that gain dynamics is the main physical origin of collision .

T4A.6 Dispersion Optimization of Comb-Like Supercontinuum Generated by two-Pulse Bound State, Shijie Chen1, Renlai Zhou2, Xuanyi Liu3, H .Y . Fu3, Qian Li1; 1Peking Univ., China; 2Harbin Engineering Univ., China; 3Tsinghua Univ., China. We theoretically and experimentally demonstrate the generation of comb-like supercontinuum by inputting the two-pulse bound state . Through detailed dispersion optimization, the flatness, comb depth and bandwidth can be improved .

T4A.7 Inscription of Narrow-Bandwidth Flat-top Optical Filter Based on Multi-Phase-Shifted Fiber Bragg Grating Using Ar+

Laser, Di Wang1, Yi Zhang2, Qinggui Tan1, Xiaojun Li1; 1Lab Sci & Tech on space microwave Tech, China; 2School of Electronic and Information Engineering, Xi’an Jiaotong Univ., China. An all-fiber narrow-bandwidth flat-top filter with 3 dB bandwidth and 20 dB bandwidth of 315 MHz and 778 MHz were prepared by the scanning inscription systems based on 244nm Ar+ laser .

T4A.8 A Portable Rotational Sensor Based on the Dual-Polarization Fiber Optic Gyroscope, Yuwen Cao1, Lanxin Zhu1, Tong Zhou1, Chunxia Yang2, Yanjun Chen1, Zhengbin Li1; 1Peking Univ., China; 2Youfu Technology Co., Ltd, China. A portable rotational sensor based on a modified dual-polarization fiber optic gyroscope is demonstrated, in which the excess relative intensity noise is effectively compensated achieving an enhanced sensitivity of 70 nrad/s/√Hz in a 2-km-long fiber coil .

T4A.9 A Low Self-Noise Fiber Optic Gyroscope Based on Dual- Polarization Configuration for Geophysical Rotation Sens- ing, Yanjun Chen1, Yuwen Cao1, Wenbo Wang1, Yan He1, Tong Zhou2, Zhengbin Li1; 1State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer Science, Peking Univ., China; 2School of Software and Microelectronics, Peking Univ., China. A fiber optic gyroscope based on dual-polarization configuration is designed and realized . The 24-hour stability test shows a self-noise level of 3×10^(-9) rad/s/√Hz within the frequency range of 0 .001Hz to 1Hz .

T4A.10 Comparison of in-Fiber Solid and Hollow Microspheres Resonators for Temperature Sensing, Yan Xie1, Hang Sun1, Yiqi Chen1, Xiaochen Liu1, Yong Yang1, Qi Zhang1, Xiaobei Zhang1, Tingyun Wang1; 1ShangHai Univ., China. We demonstrate a temperature sensor based on capillary coupled with microsphere resonators inside, which are compared in the forms of solid and hollow types .

T4A.11 Design of All-Solid Anti-Resonant Fiber for Developing Large Mode Area Fiber, Xin Wang1,2, Zhen Xing1, Shuqin Lou1; 1Beijing Jiaotong Univ., China; 2State Key Laboratory of Pulsed Power Laser Technology, China. Introducing anti-resonant guiding mechanism into all-solid structure, we propose the design of all-solid anti-resonant fiber to develop single-mode, large mode area fiber for high power fiber laser applications .

T4A.12 Hole Assisted Side-Polished Plastic Optical Fiber Based Surface Plasmon Resonance Sensor, Chuanxin Teng1, Youwei Wang1, Maosen Li1, Peng Shao1; 1GUET, China. A hole assisted side-polished plastic optical fiber based SPR sensor was proposed for refractive index sensing . The sensing performance of the proposed sensor was studied experimentally . The sensor is compact in size .

T4A.13 High Performance in-Line Mach-Zehnder Interferometer as Reference Arm for Vernier Effect Generation, Maolin Dai1, Zhenmin Chen2, Yuanfang Zhao1, H .Y . Fu1; 1Tsinghua Univ., China; 2Peng Cheng Laboratory, China. A compact in-line fiber optic Mach-Zehnder interferometer is proposed with insensitiv- ity to temperature, strain, RI and torsion, which can work as a stable and universal reference arm in the high-quality Vernier effect for sensitivity enhancement .

T4A.14 Greatly Intensified SNR for Distributed Optomechanical Time-Domain Analysis Sensors Based on Inter-Mode For- ward Brillouin Scattering, Yu-Lian Yang1, Li-Ming Liu1, Xin- Hong Jia1, Wen-Yan Liang1, Li Jiang1, Qing-Xue Deng1; 1Sichuan Normal Univ., China. Greatly intensified signal-to-noise ratio (SNR) for distributed optomechanical time-domain analysis (OMTDA) sensors was demonstrated based on inter-mode forward stimulated Brillouin scattering (FSBS) of polarization maintaining fiber (PMF), where the noise by differential processing was radically avoided .

T4A.15 Design and Fabrication of a Mode Mismatching Photonic Lantern for Coupling From a Multi-Mode Fiber to Single- Mode Fibers, Jiajia Liu1, Yan Li1, Yiming Bian1, Haohan Sun1, Wei Li1, Jifang Qiu1, Xiaobin Hong1, Hongxiang Guo1, Jian Wu1; 1Beijing Univ. of Posts and Telecommunications, China. We propose a mode mismatching photonic lantern (MMPL) with a large taper ratio and short taper length that can satisfy adiabatic condition easily . The MMPL can effectively couple power from hundreds multi-mode to several single-modes .

T4A.16 Formation of Bound Soliton Molecules in Multimode Optical Fiber With Temporally Modulated Nonlinearities, Sakkaravar- thi Karuppaiya1, Kanna T2; 1Asia Pacific Center for Theoretical Physics (APCTP), Korea; 2PG & Research Department of Physics, Bishop Heber College (Autonomous), India. We investigate the formation of bound soliton molecules developed through a velocity resonance mechanism in a multicomponent system describing beam propagation in multimode optical fiber with controllable coherent and incoherent nonlinearities by obtain- ing explicit analytical solution and explore their dynamics for various forms of nonlinearities .

15:30–17:30 T4A • Poster Session

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T4A.17 Dual-Wavelength all-Fiber Erbium-Doped Laser Based on few-Mode Tilted Fiber Bragg Grating for Torsion Sensor, Kang Yang1, Yuanshuo Min1, Bingnan Cui1, Sumei Jia1, Shuo Liang1, Lili Liang1; 1Handan Univ., China. Torsion sensor based on dual-wavelength laser is proposed . By analyzing the laser intensity difference of two wavelengths in 1550 .95 nm and 1552 .53 nm, the sensitivity of 3 .53 dB/(rad/m) from -1 .99rad/m to 2 .65 rad/m is achieved .

T4A.18 Reduced Confinement Loss in Tubular Hollow Core Fibers With a Tailored Jacket Tube, Behnam Naghdi1, Lixian Wang2, Jiachuan Lin1, Binod Bastola2, Frédéric Maes2, Manish Sharma2, Zhiping Jiang1; 1Huawei Technologies Canada, Canada; 2Huawei Technologies Canada, Canada. Tubular hollow core fibers with low attenuation have great potential for different optical applications . Here we numerically investigate designs with a tailored jacket tube showing a significant confinement loss improvement of 27%-66% over a wide band from 1100 to 2000 nm .

T4A.19 Broadband Mode Converter Based on Over-Coupled Long- Period Fiber Grating, Yuehui Ma1, Chen Jiang1, Zuyao Liu1, Yunqi Liu1; 1Shanghai Univ., China. We proposed broadband mode converters based on over-coupled long-period fiber gratings (LPFG) inscribed in few-mode fiber using CO2-laser . The 10-dB bandwidth of the over-coupled LPFG is ~116 .8 nm, which is 2 .93 times than conventional LPFG .

T4A.20 Diaphragm-Free Microphone Based on Laser Interferometry, Lei Li1, Fengtao Han1, Liping Tang1, Shenghui Wang1, Yang Gao1, Yingying Qiao1; 1Zhengzhou Univ., China. According to the mechanism that acoustic wave can change the air refractive index, a diaphragm-free microphone based on Mach-Zehnder interferometer is designed and implemented, which has a good response to acoustic signal .

T4A.21 Structured Light Field Customization System Through Simultaneous Control of Piston and Tip/Tilt Distortions, Qi Chang1, Tianyue Hou1, Jinhu Long1, Pengfei Ma1, Rongtao Su1, Pu Zhou1; 1National Univ. of Defense and Technology, China. A structured light field customization system is proposed in coherent fiber laser array through tip/tilt and piston phase control . The simulations have demonstrated that the effectiveness of this system on complex optical field .

T4A.22 All-Fiber Resonance Wavelength Tunable MDM Transmis- sion Network Based on the FBGs and Broadband LPFGs, Xiaoqian Wang1, Hu Zhang1, Qiankun Li2, Xiaoguang Zhang1, Lixia Xi1; 1Beijing Univ of Posts & Telecom, China; 2State Grid Tianfu New Area Electric Power Supply Company, China. All- fiber resonance wavelength tunable MDM transmission based on the FBGs and broadband LPFGs is proposed . The MDM network could provide high mode conversion efficiency and low coupling crosstalk for generated vector modes over C+L band .

T4A.23 Humidity Sensor Based on Mach-Zehnder Interferometer Coated With Graphene Oxide, Yu Zhu1, Chen Jiang1, Yuehui Ma1, Long Chen1, Yunqi Liu1; 1Shanghai Univ., China. In this work, a graphene oxide-coated Mach-Zehnder interferometer is proposed for relative humidity sensing applications . The sensor has a high sensitivity with 0 .212 dB/%RH in a RH range of 30-70% .

T4A.24 Improved Luminescence Properties in a Yb: YAG Crystal- Derived Fiber by Thermal Treatment, Kai Zou1, Jianxiang Wen1, Ying Wan1, Fufei Pang1, Tingyun Wang1; 1Shanghai Univ., China. The luminescence properties of Yb: YAG crystal-derived fiber (YDF) have been improved by thermal treatment . Its center position of the emission wavelength shifted from 1017 to 1030 nm and luminescence intensity is enhanced by ～2 times .

T4A.25 Adam Based MIMO Equalizer for OAM Mode Division Mul- tiplexed Optical Fiber Communication, Sihan Wang1, Sitong Zhou1, Ran Gao1, Huan Chang1, Qi Xu1, Xiangjun Xin1; 1Beijing Inst. of Technology, China. we propose an Adam-based equalizer for an orbital angular momentum (OAM) mode-division multiplexed optical fiber communication system, which achieve 1dB and 3dB benefit in two groups compared with stochastic gradient descent(SGD) algorithm .

T4A.26 Liquid-Crystal-Filled Side-Hole Fiber for Temperature Measurement in Fiber Ring Laser, Weihao Lin1, Li-yang Shao1; 1Southern Univ. of Science and Technology, China. A temperature sensor in fiber ring laser (FRL) system has been experimentally demonstrated based on a side hole fiber (SHF) penetrated with liquid crystal (LC) . The temperature sensitivity is measured to be −4 .23 nm/Celsius degree

T4A.27 Estimation of Nonlinear Crosstalk in Weakly Coupled Multi-Core Fiber, Hongfeng Pan1, Shulin Jin1, Lian Xiang1; 1Soochow Univ., China. An analytical model of nonlinear inter- core crosstalk in weakly coupled multi-core fiber is derived based on perturbation theory and nonlinear coupled mode equation . The theoretical simulation results agree well with the experimental results .

T4A.28 Fabrication of High Reflection Fiber Bragg Gratings by Fem- tosecond Laser Through a Chirped Phase Mask, Hongye Li1, Baiyi Wu1, Meng Wang1, Chenhui Gao1, Xiaofan Zhao1, Zefeng Wang1; 1National Univ of Defense Technology, China. In this paper, we fabricate a chirped fiber Bragg grating (CFBG), which plays the role of high reflection FBG (HR-FBG) in a high power oscillator, in a double cladding fiber (DCF) using femtosecond laser beam through a chirped phase mask .

T4A.29 A Single Mode Fiber to Ring-Core Fiber Side-Polished Pump Coupler, Xiaobo Xue1, Jianheng Qiu1, Qi Jiang1, Shuaishuai Liu1, Liang Zhang1, Fufei Pang1, Tingyun Wang1; 1Shanghai Univ., China. A side-polished fiber coupler for orbital angular momentum (OAM) mode conversion was designed and fabricated with a single mode fiber (SMF) and a ring-core fiber (RCF) . Based on evanescent wave coupling effect, the 974 nm pump laser in the SMF can be efficiently injected into the RCF . It can be found potential applications in OAM fiber amplifiers .

T4A.30 Compensating Verdet Constant of Optical Fibers Based on Faraday Rotating Mirror Measurement System, JiaWei Zeng1, Jianxiang Wen1, Hao Shi1, Yan Wu1, Le Ye1, Yanhua Dong1, Yi Huang1, Tingyun Wang1; 1Shanghai Univ., China. Established Verdet constant test system based on Faraday rotating mirror (FRM) . It is found that FRM eliminates the influence of linear birefringence, indicating that the introduction of FRM can compensate for the Verdet constant .

T4A.31 Gain Characteristics of Few-Mode Erbium-Doped Fiber Amplifiers Pumped With Complex Mode Field, Xinrui Jiang1, Bao-Jian Wu1; 1Univ of Electronic Sci & Tech of China, China. We present a theoretical model of few-mode erbium-doped fiber amplifiers with complex mode fields and show that a tunable differential mode gain (DMG) can be realized by changing the components of LP11e,x and LP11o,y .

T4A.32 Fiber Optic Parametric Amplification in an Effectively Single-Mode Hybrid PCF at ZDW2, Bhaskar Ojha1, Rohaan Deb1,2, Partha S . Maji1; 1Amity Univ. Kolkata, India; 2Physics, Department of Physics, Univ. of Bonn, Bonn, Germany, Ger- many. Wide bandwidth parametric sources based on dispersion engineered hybrid-PCF around ZDW2 investigated . Optimized dispersion profile support smaller but +ve β4 favouring the condition for very wide FOPA resulting 3dB bandwidth of more than 1000 nm .

T4A.33 Closed-Form EGN Model for FMF Systems, Mohammad Ali Amirabadi1, Mohammad Hossein Kahaei1, S . Alireza Ne- zamalhosseini1, Farhad Arpanaei2, Andrea Carena2; 1School of Electrical Engineering, Iran Univ. of Science and Technology, Iran (the Islamic Republic of); 2Department of Electronics and Telecommunications, Politecnico di Torino, Italy. Recently, Enhanced Gaussian Noise (EGN) model of few-mode fiber nonlinearity has been proposed improving GN model accuracy . However, EGN is considerably complex . We propose a closed-form EGN model and provide substantial simulations indicating its accuracy .

T4A.34 Investigation of Nonlinear Signal Distortions of EDFA for Super-Channel Transmission, Haixin Bi1, Yan L . Xue1; 1East China Normal Univ., China. Based on the semi-classical theory, the nonlinear interaction model of ultrashort pulse train in high-speed transmission system is established . The crosstalk in adjacent pulses caused by the nonlinear resonance enhancement in EDFA is simulated .

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T4A.35 Modulation Format Identification of Optical Communication System Based on Multi-Scale Inception Network, Meng Liang1, Yongle Li1; 1Xi’an Univ. of Posts & Telecom., China. We propose a new convolutional neural network based on multi- scale inception, combined with constellation image processing, to improve the accuracy of optical network modulation format identification and reduce the training cost .

T4A.36 Effective Positioning Scheme Based on Visible Light Communication for Vehicular Applications, Biao Zhou1, J He1, Yiting Yang1, Lin Xu1, Jing He1; 1Hunan Univ., China. An effective vehicle positioning scheme using a novel sampling scheme and monocular ranging model based on visible light communication is proposed . Experimental results show it achieves BER lower than 3 .8×10-3 with the mean positioning error below 0 .145 meters .

T4A.37 Analysis of Neural Network Compensation for Fiber Non- linearity in Coherent Optical Communication System Based on Perturbation Model, Tao Xu1, Taowei Jin1, Wenshan Jiang1, Jing Zhang1, Xingwen Yi2, Kun Qiu1; 1Univ. of Electronic Science and Technology of China, China; 2Sun Yat-sen Univ., China. We analyze the effect of neural network (NN) on nonlinear compensation in coherent optical transmission system . The simulation and experimental results show that the NN can compensate the residual intra- and inter-channel nonlinear interference .

T4A.38 Digitized Radio-Over-Fiber Transmission Based on Reor- dered Vector Quantization Codebook, Jiongbin Deng1; 1Southwest Jiaotong Univ., China. A digitized radio-over-fiber transmission approach by reordering the vector quantization codebook generated by K-means clustering algorithm is proposed, which can redistribute the number of bits ‘00’, ‘01’, ‘10’, ‘11’ of PAM-4 to reduce the ROP .

T4A.39 Hierarchical Min-Sum Algorithm Based on Dynamic Scaling Factor for LDPC Decoding, Ruotong Wang1, Qinghua Tian1, Zexuan Jing1, Dong Guo2, Feng Tian1, Leijing Yang1, Xiangjun Xin1; 1Beijing Univ. of Posts and Telecommunications, China; 2Beijing Inst. of Technology, China. In roder to adjust the log-likelihood ratios (LLRs), we design a hierarchical min-sum algorithm based on dynamic scaling factor (DSF-HMS) . The results show that the proposed algorithm can improve the decoding performance .

T4A.40 Low-Complexity Single-Stage Frequency-Domain Equalizer, Jianhong Ke1, Chao Xin2, Ting Yang2, Cui Liu3, Chuandong Li1; 1Huawei Technologies Canada Research Center, Canada; 2Huawei Technologies Wuhan Research Center, China; 3Huawei Technologies Chengdu Research Center, China. We propose a low-complexity single-stage frequency-domain equalizer (FDEQ) using one adaptive equalizer to compensate both static and dynamic impairments . The proposed approach reduces complexity by 33% without performance degradation .

T4A.41 Research on Channel Compensation Technology of DP- 32QAM Optical Communication System Based on DPC- KNN, Meng Liang1, Long Chu1; 1Xi’an Univ. of Posts & Telecom., China. We propose a channel compensation technology that combines the density peak clustering (DPC) algorithm and the K-nearest neighbor (KNN) algorithm to reduce the signal damage problem in the polarization multiplexing 32QAM coherent optical communication system .

T4A.42 Optical Performance Monitoring for Intra-LP-Mode Disper- sions of Non-Circularly-Symmetric LP Modes in Weakly- Coupled FMFs, Jiaxin Liu1, Mingqing Zuo1, Dawei Ge1,2, Yuyang Gao1, Yongqi He1, Juhao Li1; 1State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking Univ., Beijing 100871, China, China; 2Department of Network and IT Technology, China Mobile Research Inst., Beijing 100053, China, China. Based on the analysis of intra-LP-mode dispersion (ILMD) in weakly-coupled FMFs, we propose a method for ILMD monitoring based on channel estimation for the first time and experimentally demonstrate its feasibility in coherent MDM systems .

T4A.43 2×20G Baud Few-Mode Fiber Transmission With a Jones- Volterra Training Sequence, Chuxuan Wang1, Feng Tian1, Tianze Wu1, Yu Gu1, Jue Wang1, Qi Zhang1, Bo Liu2, Qinghua Tian1, Xiangjun Xin3; 1Beijing Univ. of Posts and Telecom- munications, China; 2Nanjing Univ. of Information Science & Technology, China; 3Beijing Inst. of Technology, China. We experimentally demonstrated a 2×20G Baud PAM4 few mode fiber transmission and proposed a Jones-Volterra training sequence to mitigate the device nonlinearities and dynamic crosstalk . The proposed algorithm can achieve a 0 .5dB received power improvement .

T4A.44 Dynamic Traffic Grooming With Link Optimizing in Elastic Optical Networks, Yi Zhao1, Qi Zhang1, Ying Tao2, Qingyuan Liu1, Dong Chen2, Jinxi Qian2, Feng Tian1, Qinghua Tian1, Mai Yang1; 1Beijing Univ. of Posts and Telecomm, China; 2China Academy of Space Technology (CAST), China. A dynamic traffic grooming with link optimizing algorithm based on the degree of fragmentation increasing is proposed for EONs . Simulation results shows that this method reduces blocking rate and improve spectrum resource utilization effectively .

T4A.45 Channel Modeling and Compensation of Ultra-Fast Spike- Shaped RSOP Caused by Lightning, Wanxin Zhao1, Jiarun Zhao1, Hanbo Zhang1, Jian Gao1, Xiaoguang Zhang1; 1BUPT, China. This paper proposes an ultra-fast spike-shaped RSOP model to simulate the effects of lightning . In the case of considering the first-order PMD, the sliding window Kalman filter is used to track and compensate it .

T4A.46 Modulation Schemes of 6PolSK-QPSK in Repeaterless Transmission System, Yichao Zhang1, Yupeng Li1; 1Tianjin Key laboratory of Wireless Mobile Communications and Power Transmission, Tianjin Normal Univ., China. As a combination of PM-QPSK and PS-QPSK, 6PolSK-QPSK has better spectral efficiency . A modulation scheme is proposed to generate 6PolSK-QPSK signal transmission, constructs VPI system structure, and realizes the 40Gbps data transmission in this paper .

T4A.47 Experimental Demonstration of 160×100Gb/s Real-Time WDM Bidi-Transmission Over 100-km G.652 Fiber, Wenbo Yu1, Hu Shi1, Yangguang Liu1, Wendong Shang1, Yinqiu Jia1, Zhenhua Feng1; 1WDM system department of wireline product R&D Inst., ZTE Corporation, China. We demonstrated a C-band 100-km 16-Tbit/s real-time PDM-QPSK bidi-transmission with the same wavelengths for both directions utilizing 100Gb/s commercial CFP2-DCO coherent modules .Transmission performance of 160-channel duplex system are analyzed with more than 4 .5-dB OSINR margin .

T4A.48 A Highly Reliable Timing Error Tolerated Optical Label Demodulation Algorithm for WDM Optical Network Monitoring, Zhengyu Liu1, Tao Yang1, Sheping Shi2, Jinhao Du1, Jiao Wang1; 1Beijing Univ. of Post and Telecommunica- tion, China; 2ZTE Corporation, China. A timing error tolerated WDM wavelength channel performance monitoring based on optical labels is proposed, verification of the scheme by using a novel asynchronous DPSK-optical-label reception DSP algorithm under serious timing error is successfully demonstrated .

T4A.49 10 Gb/s Bidirectional Transmission via Exploiting Optimized Integrated EML-SOA Based ONU, Xin Rui Chen1, Guang Yong Chu1; 1Jiangnan Univ., China. We present the characteristics of optimized SOA and EML, respectively, and combine them for testing their transmission performances, providing a feasible scheme for large-scale deployment of flexible ONU .

T4A.50 Experimentally Demonstration of 2D-TCM for OFDM-Based Visible Light Communication, Lin Xu1, J He1, Zhihua Zhou1; 1Hunan Univ., China. In the paper, 2-dimensional trellis code modulation (2D-TCM) combined with 16/32QAM OFDM is proposed in visible light communication . The experimental results show that, by using the 2D-TCM 16/32QAM OFDM, the data rate is 2 .65 Gb/s and 3 .53 Gb/s, respectively . And the BER is lower than the FEC threshold of 3 .8×10-3 .

T4A.51 Secure Optical Communication Based on Hilbert Scanning and Chaotic Scrambling in OFDM-PON, Zhiyi Wang1, Yao- qiang Xiao1, Bingshuai Wang1, Yuansiyi Yan1; 1Hunan Univ., China. A secure transmission scheme based on Hilbert scanning and chaotic scrambling is proposed . Simulation results demonstrate the proposed scheme can effectively enhance the security of OFDM-PON without OSNR penalty compared with the conventional OFDM signal .

T4A.52 OAM Mode Division Multiplexing Based IM/DD Transmis- sion With Hidden Markov Model Based Equalizer, Yi Cui1, Ran Gao2, Qi Zhang1, Xiangjun Xin2, Yongjun Wang1, Zhipei Li2, Fei Wang2; 1Beijing Univ. of Posts and Telecommmunications, China; 2School of Information and Elctronics, Beijing Inst. of Technology, China. A hidden Markov model-based equalizer is proposed for an OAM mode division multiplexing IM/DD optical communication system . The experimental results show that the equalizer has great potential for high-performance large-capacity low-cost short-reach optical interconnects .

T4A.53 Over 3.5dB Receiver Sensitivity Improvement With Twisted- PAM8 in Short-Reach Applications, Jiahao Wu1, Yixiao Zhu1, Jiaji Li1, Xi Chen1, Weisheng Hu1; 1Shanghai Jiao Tong Univ., China. We propose the twisted-PAM8 modulation scheme with enlarged minimum Euclidean distance for short-reach IM-DD applications . Up to 4 .3dB and 1 .4dB receiver sensitivity improvement are experimentally demonstrated with 16GBaud T-PAM8 at BtB and after 10km transmission, respectively .

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T4A.54 OSNR Monitoring Based on Spectrum Analysis of QPSK Training Sequence, Feilong Wu1, Pinjing He1, Aiying Yang1, Peng Guo1, Qian Li1, Yaojun Qiao2, Xiangjun Xin1; 1Beijing Inst. of Technology, China; 2Beijing Univ. of Posts and Telecommuni- cations, China. An accurate OSNR monitoring method based on spectrum analysis of QPSK training sequence is proposed . Both numerical results (28GBaud system) and experimental results (20GBaud system) show the OSNR (10~30dB) estimation error is within 0 .4 dB .

T4A.55 Sensitivity Optimization for Fault Detection of Few Mode Fiber Based on High Order Mode With Dynamic Crosstalk Elimination, Zhenxing He1, Feng Liu1, Lixin Xu1, Wenping Zhang1, Guijun Hu2; 1College of Electrical and Electronic Engineering, Wenzhou Univ., China; 2College of Communica- tion Engineering, JIlin Univ., China. Aiming at the influence of cascading crosstalk on the loss of high-order mode faults, this paper proposes a waveform reconstruction method, which eliminate crosstalk effect and optimize the detection sensitivity of few-mode fiber link faults .

T4A.56 Synchronization of Ultra-Stable Radio Frequency Reference Over Large-Scale Optical Network, Jian Zhu1, Bingli Guo1, Xiangyang Zhong1, Shanguo Huang1; 1State Key Laboratory of Information Photonics and Optical Communications, School of Information and Communication Engineering, Beijing Univ. of Posts and Telecommunications, China. In this paper, we proposed the ONSA to satisfy the synchronization requirements of distributed infrastructures over fiber . Simulation results approve that ONSA can provide the ability to support synchronization with the lower phase time delay .

T4A.57 Precoding Methods for FBMC in PON With Intensity Modu- lation and Heterodyne Detection, Xiaowu Wang1, Mingzhu Yin1, Zhaohui Li1, Fan Li1; 1Sun Yat-Sen Univ., China. In this work, various precoding methods to reduce the PAPR of FBMC signal are studied and compared by simulation in terms of PAPR reduction and transmission performance in PON with intensity modulation and heterodyne detection .

T4A.58 NFT-Domain Least Square Channel Estimation Method for Polarization Division Multiplexed NFDM Systems, Yingrong Chen1, Xi Fang1, Ding Ding1, Jiaqi Xiong1, Lei Zhang1; 1Beijing Electronic Science and Technology Inst., China. Nonlinear Fourier transform domain least square channel estimation is proposed for discrete spectrum modulated polarization- division multiplexed nonlinear frequency division multiplexing systems . A lower BER is obtained using the full-loaded training sequences .

T4A.59 Performance Comparison of Probabilistic Shaping SVDD System and Classic SVDD System, Lingguo Cao1, Hengying Xu1,2, Chenglin Bai1,2, Lishan Yang1,2, Weibin Sun1,2, Xinkuo Yu1, Peng Qin1, Xue Tang1,2; 1School of Physics Science and Information Engineering, Liaocheng Univ., China; 2Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng Univ., China. We compare the performance of PS-SVDD system and classic SVDD system for the first time . Simulation results show that PS-SVDD 16/64QAM systems gain 0 .42/0 .70dB OSNR improvements, respectively, and achieve higher MI than classic SVDD system .

T4A.60 Geometric Phase Effect in Optical Fiber Communication Systems With Dynamic Polarization Control, Qianxin Zhan1, Kaiqin Lai1, Dajian Cai1, Dawei Wang1; 1Sun Yat-sen Univ., China. The geometric phase effect in the optical fiber communication systems with dynamic polarization control is analyzed . Both dynamic and geometric phases cause an increase of the signal phase noise, in proportional to the speed of polarization rotation and restoration .

T4A.61 Accurate Chromatic Dispersion Estimation for Nyquist and Faster Than Nyquist Coherent Optical Systems, Yongben Wang1,2; 1ZTE Corporation, China; 2State Key Laboratory of Mobile Network and Mobile Multimedia Technology, China. We propose an accurate blind chromatic dispersion (CD) estimation method for single-carrier coherent optical communication systems . The method can work well even in faster than Nyquist (FTN) system in presence of polarization-mode dispersion .

T4A.62 Self-Homodyne Transmission of Eigenvalue Communication System Using Polarization-Multiplexed Pilot-Carrier and In- jection Locking, Junda Chen1, Ming-Ming Zhang1, Weihao Li1, Yizhao Chen1, Ziwen Zhou1, Tianhao Tong1, Yifan Zeng1, Chen Cheng1, Haoze Du1, Deming Liu1, Ming Tang1; 1Huazhong Univ. of Science and Technology, China. A self-homodyne eigenvalue transmission is demonstrated for the first time . With the use of injection locking, the communication maintains available even with distributed feedback laser, achieving a frequency offset tolerance of up to 9 GHz .

T4A.63 Mitigation of MIMO-Induced Equalization Enhanced Phase Noise Using Blind Phase Searching Algorithm in Mode- Division Multiplexing Systems Using Digital Subcarrier Multiplexing, Xingwen Yi1, Fan Li1; 1Sun Yat-Sen Univ., China. By using digital subcarrier multiplexing with a lower baud- rate signal in mode-division multiplexing, the complexity of MIMO is reduced . We show that the MIMO-induced equalization enhanced phase noise can be mitigated by blind phase searching algorithm .

T4A.64 End-to-end Learning Based Bit-Wise Autoencoder for Optical OFDM Communication System, Wenshan Jiang1, Tao Xu1, Qun Liu1, Xue Zhao1, Jing Zhang1, Qi Yang2, Xingwen Yi3, Kun Qiu1; 1Univ. of Electronic Science and Technology of China, China; 2Huazhong Univ. of Science and Technology, China; 3Sun Yat-sen Univ., China. We propose an end-to-end autoencoder for optical OFDM communication system, which is trained based on bit-wise mutual information (BMI) . The simulation results show that the autoencoder can optimize the constellations and achieve BER performance improvement .

T4A.65 All-Optical Carrier Recovery for Self-Homodyne Detection Using Injection Locked Stimulated Brillouin Laser in Silica WGM Microcavity, Boyuan Liu1, Qiang Zhang1, Xinjie Han1, Yong Geng1, Kun Qiu1, Heng Zhou1; 1Univ of Electronic Science & Tech China, China. We demonstrate all-optical carrier recovery using injection locked Brillouin laser in optical microcavity . Via injection locking, phase coherence between the original and recovered carriers is greatly enhanced, enabling high-quality self-homodyne detection without carrier phase estimation .

T4A.66 A Security-Enhanced Physical Layer Encryption Scheme Based on Dispersion Equalization and DNA Encoding, Wei Kong1, Jiabin Cui1, Yuefeng Ji1; 1Beijing Univ. of Posts and Telecommunications, China. A novel security-enhanced physical layer encryption scheme based on dispersion equalization and DNA encoding is proposed . The security of encryption transmission is verified by simulations for 10GBaud 16QAM signals over 300 km fiber .

T4A.67 An Improved FPGA Equivalent Parallel Implementation of All-Digital Timing Recovery, Xun Lu1, Liqian Wang1, Yuhua Wang1, Xue Chen1; 1Beijing Univ. of Posts and Telecommunica- tions, China. In the all-digital timing recovery algorithm based on FPGA, an improved equivalent parallel implementation is proposed . It solves the problem that numerically controlled oscillator cannot updata in real time . Its is verified in PM- QPSK system .

T4A.68 Modeling of Transient Nonlinear Impairment Induced by OTDR in Coherent System, Yasser Chiniforooshan2, Zhiping Jiang2, Jiang Tang3, Junho Chang2, Jian Zhong1; 1Huawei Tech- nologies Co., China; 2Huawei Technologies Canada, Canada; 3Huawei Technologies, France. The transient nonlinearity affects traffic signal performance very differently than do stationary nonlinearities . We identified and experimentally verified the unique aspects supporting modeling of such impairments induced by OTDR pulses .

T4A.69 100m Free-Space Visible Light Communication at 6 Gbps GS-APSK Modulation Utilizing a GaN Blue LD, Guojin Qin1, Qijun Bian1, Wenqing Niu1, Nan Chi1; 1Fudan Univ., China. 100m free-space visible light communication at 6 Gbps utilizing a GaN blue laser diode has been experimentally demonstrated . The transmission analysis shows the feasibility of inter-satellite optical communication .

T4A.70 Joint Shaping Technique of Signal Probability and Quanti- zation Noise for Coherent Transmission Systems, Hongyu Huang1,2, Zhenming Yu1,2, Liang Shu1,2, Kaixuan Sun1,2, Qiuyang Yin1,2, Kun Xu1,2; 1Beijing Univ. of Posts and Telecommunica- tions, China; 2State Key Laboratory of Information Photonics and Optical Communications, China. In this work, the joint shaping technique of signal probability and quantization noise is investigated in a low-resolution coherent optical transmission system . The results show the better performance is obtained through the effective jointing .

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T4A.71 Low-Complexity Frequency and Time Domain Hybrid Learned Digital Backpropagation, Zhen Wu1, Du Tang1, Zhongliang Sun1, Yaojun Qiao1; 1Beijing Univ. of Post. and Tele- com., China. A low-complexity learned digital backpropagation based on frequency and time domain hybrid chromatic dispersion compensation is proposed, which reduces the complexity significantly compared to the existing implementation without sacrificing performance .

T4A.72 On the Sum Rate of Precoded Multi-User SDMA VLC System With Limited Dynamic Range, Ruochen Zhang1, Chen Chen1, Xin Zhong1, Min Liu1, Yanbing Yang2, Xiao Duan3; 1Chongqing Univ., China; 2College of Computer Science, Sichuan Univ., Chi- na; 3School of Optoelectronic Engineering, Chongqing Univ. of Posts and Telecommunications, China. We investigate the sum rate performance of a precoded multiuser MIMO-VLC system under the constraint of LED’s limited dynamic range . Simula- tion results verify the superiority of SVD-precoded SDMA for practical dynamic-range-limited multiuser MIMO-VLC systems .

T4A.73 Cubature Kalman Filter for Compensation of RSOP With Carrier Phase Noise, Mingxin Wang1, Qi Zhang1, Ran Gao3, Xiangjun Xin1, Xishuo Wang1, Feng Tian1, Bingchun Liu2, Huan Chang3, Qinghua Tian1, Yongjun Wang1; 1Beijing Univ. of Posts and Telecomm, China; 2Tianjin Univ. of Technology, China; 3Bei- jing Inst. of Technology, China. A Cubature Kalman filter (CKF) is proposed for polarization demultiplexing in a polarization division multiplexing 16QAM system . Simulation results show that CKF has advantages over polarization demultiplexing and OSNR compared to extended Kalman filter .

T4A.74 Optical Beamforming-Based Inter-Cell Interference Coor- dination for Millimeter-Wave Cloud RANs, Xiaowen Wang1, Huan Huang1, Chongfu Zhang1, Wei Tan1, Kun Qiu1; 1Univ. Electron. Sci. & Technol. China, China. The low-cost implementation of optical true time delay-based hybrid beamforming is proposed for millimeter-wave cloud radio access networks, where all phase control modules are centrally deployed . Moreover, multi-cell coordinated beamforming is exploited for interference management .

T4A.75 Demodulation of NHS-OFDM Signal With Real-Valued FFT and Enhanced Channel Estimation, Lede Yin1, Wen Chen1, Ming Chen1, Shengyou Qian1, Gang Chen1, Jianing Zuo1, Qian- jiao Cheng1; 1Hunan Normal Univ., China. We experimentally demonstrate an enhanced channel estimation scheme with subcarrier pairwise-averaging for hardware-efficient demodulation of the NHS-OFDM signal . About 2-dB improvement in receiver sensitivity can be achieved with the BER of 3 .8e-3 .

T4A.76 Method for Data Editing in Subcarrier Index Modulation Optical Label System, Xu zhang1, Chao Yang1, Ming Luo1, Lingheng Meng1, Feng Jiang1, Zhixue He1; 1WRI, China. In this paper, we demonstrate a data editing technology for subcarrier index modulation optical label system . Based on the data processing and signal feedback loop, the label data of each wavelength can be edited independently

T4A.77 An Acoustic/Optic Hybrid MAC Protocol Based on TDMA for Underwater Optical Wireless Networks, Yuan Wang1, Ji Du1, Ruilin Chen1, Jiahan Tian1, Guowu Zhang1, Xiaojian Hong1, Chao Fei1; 1Zhejiang Univ., China. A novel acoustic/optic hybrid medium access control (MAC) protocol based on TDMA is proposed for underwater optical wireless networks (UOWNs) . Performance of the protocol is evaluated through simulations under both protocol and physical interference models .

T4A.78 Constellation Reshaping Method for PAPR Reduction of SIM-OFDM Based on SLM Algorithm, Xin Wang1, Qi Zhang1, Ran Gao2, Xishuo Wang1, Xiangjun Xin1, Feng Tian1, Qinghua Tian1, Yongjun Wang1, Zhipei Li2, Dong Guo2, Huan Chang2; 1Beijing Univ. of Posts and Telecommunications, China; 2Beijing Inst. of Technology, China. In order to solve the problem of high PAPR in SIM-OFDM system, a constellation reshaping method based on SLM algorithm is proposed . It can reduce the PAPR effectively without transmitting side information .

T4A.79 Transfer-Learning Based Convolutional Neural Network for Short-Reach Optical Interconnects, Xing Liu1, Jicheng Li1, Zhaoquan Fan1, Jian Zhao1; 1South China Univ. of Technology, China. We propose transfer-learning (TL) aided convolutional neural network (CNN) equalizer for short-reach IM/DD systems . Simulations of PMA4 systems with varying distances and data rates show that TL-aided CNN outperforms TL-aided ANN and CNN without TL .

T4A.80 PAM4 Underwater Optical Communication Enhanced by Holographic Beam Shaping, Jiewen Nie1, Lei Tian1, Haining Yang1; 1Southeast Univ., China. This paper demonstrated a 200 Mbps underwater optical communication based on PAM4 modulation over 25 meters . The performance of the data communication was significantly improved by a holographic optical launching unit that can be reconfigured for different link distances .

T4A.81 Linear and Nonlinear Physical Effects in Optical Fiber Revealed From the Perspective of Deep Neural Networks, Xiaotian Jiang1, Danshi Wang1, Min Zhang1; 1Beijing Univ of Posts & Telecom, China. Deep learning-based forward and backward propagation models of optical pulse in fiber are proposed to characterize both linear and nonlinear physical effects from the perspective of deep neural networks instead of traditional mathematical physics methods .

T4A.82 Optical Network Routing by Deep Reinforcement Learning and Knowledge Distillation, Bixia Tang1, Jianying Chen1, Yue- Cai Huang1, Yun Xue1, Weixing Zhou1; 1School of Physics and Telecommunication Engineering, South China Normal Univ., China, China. We propose a knowledge distillation scheme for deep reinforcement learning-based optical networks . Distilling knowledge from the well-trained model of one traffic pattern to others traffic patterns, so that the latter’s training more time- efficient and performance-effective .

T4A.83 Two Layer Bidirectional RNN With Weighted Loss for Fiber Nonlinear Equalization, Alexey Kosarev1, Dmitry Dolgikh1, Wanyang Wu1, Yanzhao Lu1, Liangchuan Li1; 1Huawei Technolo- gies Co., Ltd., Russian Federation. Paper introduces encoder- decoder recurrent architecture for nonlinear equalization in longhaul WDM systems . Model outperforms previous RNN and perturbation based solutions . Pruning technique providing 15 times complexity reduction is demonstrated .

T4A.84 Transmitter IQ Imbalance Compensation in Single Sideband Direct Detection System With 2×2 MIMO Equalizer, Wei Wang1, Dongdong Zou1, Xiaowu Wang1, Zhaohui Li1, Fan Li1; 1Sun Yat-Sen Univ., China. The transmission of 150 Gb/s/λ optical single sideband OFDM signal over 80-km SMF is experimentally demonstrated with BER below the HD-FEC threshold . A 2×2 multiple-input multiple-output (MIMO) equalizer is applied for transmitter IQ imbalance compensation .

T4A.85 Improved Delay-Division Multiplexing OFDM-PON Scheme Employing Low-Bandwidth Sub-Nyquist Sampling-Rate ADC, Zhibin Luo1, Mingzhu Yin1, Xingwen Yi1, Zhaohui Li1, Fan Li1; 1Sun Yat-Sen Univ., China. Based on optical shaping, 10-GHz/38-Gb/s delay-division multiplexing OFDM-PON using low-bandwidth (2 .5 GHz) and sub-Nyquist sampling rate (5 GS/s) ADC is demonstrated . The proposed scheme can achieve 2 dB ROP sensitivity improvement at the HD-FEC threshold .

T4A.86 Geometric Shaping PAM-4 Signaling for the Simplified Coherent Receiver With the Transmitted Signal Diversity, Jiajun Zhou1, Lin Gan1, Songnian Fu1, Qi Yang1, Deming Liu1; 1Huazhong Univ. of Science and Techn, China. We experimentally demonstrate a geometric shaping PAM-4 signaling based on the simplified coherent receiver, leading to a sensitivity improvement of 1 .3 dB and a power budget of 32 .8 dB for 10 Gb/s/λ WDM-PON .

T4A.87 SPM-Based Data Format Conversion From one 2ASK/4PSK to two 4PSK Signals With Wavelength Preservation, Qiankun Li2, Hu Zhang1, Zhiyang Liu4, Songnian Fu3; 1BUPT, China; 2State Grid Tianfu New Area Electric Power Supply Company, China; 3Guangdong Univ. of Technology, China; 4Shanghai Jiao Tong Univ., China. An all-optical data format conversion scheme from one 2ASK/4PSK to two 4PSK signals is realized based on SPM effect and vector addition . EVM and BER performance of the signals are evaluated before and after conversion .

T4A.88 Real-Time Coherent Transmission of 8×10Gb/s PDM-QPSK Over a Free-Space Optical Link, Xueyuan Ao1, Qi Yang1, Dai Xiaoxiao1, Junyu Wu1, Yuanxiang Wang1, Chen Liu1, Mengfan Cheng1, Lei Deng1, Deming Liu1, Jing Zhang2, Shaohua Hu2, Peng Zhang3, Xiaoyan Li3, Shoufeng Tong3, He Zhao3; 1School of Optical and Electronic Information and Wuhan National Labo- ratory for Optoelectronics，Huazhong Univ. of Science and Technology, China; 2Univ. of Electronic Science and Technology of China, China; 3Changchun Univ. of Science and Technology, China. We experimentally demonstrate an 8×10Gb/s PDM- QPSK real-time coherent communication system spaced with 12 .5GHz over a free-space optical link . All the channels of the system have achieved error-free transmission performance .

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T4A.89 Real-Time Bidirectional Transmission of up to 1.25-Gbps 16-PPM Over a Free-Space Optical Link, Zhongzhong Wang1, Dai Xiaoxiao1, Qi Yang1, Shenmao Zhang1, Xueyuan Ao1, Junyu Wu1, Yuanxiang Wang1, Xin Jin1, Jinyang Wu1, Wanchao Gao1, Chen Liu1, Zhenfeng Xue1, Mengfan Cheng1, Lei Deng1, Dem- ing Liu1, Jing Zhang2, Shaohua Hu2, Peng Zhang3, Xiaoyan Li3, Shoufeng Tong3, He Zhao3; 1Huazhong Uni. of Science and Technology, China; 2Univ of Electronic Science & Tech China, China; 3Changchun Univ. of Science and Technology, China. This paper experimentally demonstrates a real-time bidirectional communication system of 16-ary pulse position modulation over a free space optical transmission . This system can guarantee error-free transmission when the received optical power is higher than -38dBm .

T4A.90 Phase Noise Compensation Based on Two-Stage Blind Phase Search for Nonlinear Frequency Division Multiplexing With Discrete Spectrum Modulation, Xiuhua Lv1, Chenglin Bai1,2, Hengying Xu1,2, Lishan Yang1,2, Weibin Sun1,2, Xinkuo Yu1, Peng Qin1, Yanfeng Bi1, Xue Tang1,2; 1School of Physics Science and Information Engineering, Liaocheng Univ., China; 2Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng Univ., China. We propose two- stage BPS scheme to compensate phase noise in single/two- eigenvalue NFDM system for the first time . Compared with feed-forward BPS, it obtains higher laser linewidth tolerance for 16/32QAM signals at OSNR penalties over 1 .5dB .

T4A.91 Optical True Time Delay-Based Hybrid Beamforming for Millimeter-Wave NOMA-MIMO Systems, Sinian Liu1, Xiaowen Wang1, Huan Huang1, Chongfu Zhang1, Kun Qiu1; 1Univ. Electron. Sci. & Technol. China, China. A low-cost millimeter- wave NOMA-MIMO system by exploiting optical true time delay-based hybrid beamforming is proposed, where only one weighting control unit is required . The obtained results show the proposed scheme achieves high spectral efficiency .

T4A.92 Experimental Investigation of PS-PDM-PAM8 Coherent Transmission Over Multi-Core Fiber, Wenpeng Gao1, Yuyuan Gao1, Ming Luo2, Hai bo Li2, Dongxu Lu1, Jiahao Huo1, Jinhui Yuan1, Zhou Xian1; 1Univ. of Science and Technology,Beijing, China; 2State Key Laboratory of Optical Communication Technologies and Networks, China Information Communica- tion Technologies Group Corporation, Wuhan 430074, Hubei, China, China. In this paper we experimentally investigate the performance of 448 Gb/s PS-PDM-PAM8 coherent transmission over multi-core fiber . 22 .4 Gb/s improvement in net bit rate can be achieved by using PS-PDM-PAM8 compared with U-PDM-PAM4 .

T4A.93 Chaotic Constellation Masking Encryption Method for Security-Enhanced CO-OFDM/OQAM System, Ling Xiao1, Xi Fang1, Jifang Jin1, Zifang Yu1, Yang Zhou1; 1BESTI, China. In this paper, we propose a Chaotic Constellation Masking (CCM) encryption method based on henon mapping to enhance the security of CO-OFDM/OQAM system . Simulation results indicate the capability of the CCM method improving system security .

T4A.94 Performance and Complexity Comparison of Different Equalizers in 100-Gb/s PAM-4 Signal Transmission Systems, Jiahao Zhou1, Linchangchun Bai1, Qun Liu1, Shaohua Hu1, Min- gyue Zhu1, Jing Zhang1, Kun Qiu1; 1Univ. of Electronic Science and Techology of China, China. We experimentally investigate and compare the performance and computational complexity of FFE, DFE, VNLE, MLSE and some hybrid algorithms in the 100-Gb/s PAM-4 signal transmission over 2-km or 10-km SSMF system with bandwidth-limited optical transceivers .

T4A.95 Impact of Inter-Core Four-Wave Mixing on Quantum Key Distribution Over Multicore Fiber, Gao Yaoxian1, Yongmei Sun1, Chun Cai1; 1Beijing Univ. of Posts & Telecomm., China. A theoretical model is built for inter-core four-wave mixing (ICFWM) based on coupled-power theory . Impact of ICFWM on quantum key distribution is evaluated and the power is measured over 11-km 7-core fiber .

T4A.96 On Classification of Linear MIMO Equalizers in Optical Coherent Communications, Wing-Chau Ng1, Chuandong Li1; 1Huawei Technologies Canada, Canada. A four-dimensional DSP-perceived channel is formulated to generalize the existing linear MIMO equalizers into four classes for the first time .

T4A.97 Outage Capacity Optimization for Underwater Wireless Optical Links With Pointing Errors, Sen Du1, Fan Yang1,2, Shi Zhang1,2, Julian Cheng3, Yuhan Dong1,2; 1Tsinghua Shenzhen International Graduate, China; 2Department of Electronic Engi- neering, Tsinghua Univ., China; 3School of Engineering, Univ. of British Columbia, Canada. Symmetric linear light source arrays are proposed to improve the outage performance caused by the link misalignment of underwater wireless optical communication systems . Optimal power allocation is also proposed to optimize their outage performance .

T4A.98 Data-Effective and Accurate EDFA Gain Prediction Black-box Model, Ming-Ming Zhang1, Yuqi Li1, Weihao Li1, Junda Chen1, Yizhao Chen2, Ming Tang1; 1School of Optical and Electronic Information, Huazhong Univ. of Science and Technology, China; 2Huazhong Univ. of Science and Technology, China. An EDFA gain prediction model is proposed . With a small size of experimental data, the spectral gain root-mean-square error of the model is 0 .1756 dB .

T4A.99 Integrating SLM Algorithm Into Neural Network for Reduc- ing the PAPR of OFDM System, Lin Chen1, Tao Xu1, Wenshan Jiang1, Jing Zhang1, Qi Yang2; 1Univ. of Electronic Science and Technology of China, China; 2Huazhong Univ. of Science and Technology, China. We propose the multi-class neural network assisted SLM algorithm to select the optimized phase vector for each OFDM symbol to reduce high PAPR by roughly 3dB and computational complexity in optical fiber communication system .

T4A.100 Non-Uniform EDFA Power Map Monitoring via Power- Guided Learned Digital Backpropagation, Du Tang1, Zhen Wu1, Zhongliang Sun1, Yaojun Qiao1; 1Beijing Univ. of Post. and Telecom., China. An accurate power map monitoring method is proposed based on power-guided learned digital backpropagation . Extensive simulation results show that the estimation error of the non-uniform power map is only less than 0 .4 dB .

T4A.101 106 Gbit/s PAM4 Transmission Employing a 15 GHz Di- rectly Modulated Laser, Yaobin Chen1, You Wang1, Wei Li1, Zhongshuai Feng1, Chengcheng Wu1, Liping Sun2, Hu Zhu2, Xiaobo Zhao2; 1Huazhong Univ. of Science and Technology, China; 2Accelink Technologies Co., Ltd., China. A 106 Gbit/s PAM4 transmission is experimentally demonstrated based on a DML . Received power of -3 dBm with 7% overhead HD-FEC is achieved by employing a digital pre-compensation and nonlinear equalization .

T4A.102 Virtual Carrier Assisted Optical SSB Direct Detection for Digital Filter Multiplexed OFDM Transmission, Yixian Dong1, Xiang Gao2, Anlin Yi1, Xiong Deng1, Hui Yang1, Lin Jiang1, Xihua Zou1, Lianshan Yan1; 1Center for Information Photonics & Com- munications, School of Information Science and Technology, Southwest Jiaotong Univ., China; 2Southwest China Inst. of Electronic Technology, China. We investigate a virtual carrier assisted optical-SSB direct detection for the digital filter multiplexed OFDM with matching filter-free receiver . Advanced in flexible access technology/complexity-reduced DSP, signal transmission >100Gb/s can be achieved after 80km SMF .

T4A.103 Receiver IQ Imbalances and Skew Compensation Based on Frequency Domain 4×2 MIMO Equalizer for PDM-16QAM Systems, Jia Chai1, Junpeng Liang2, Xue Chen1, Yan Zhao2, Yongben Wang2, Weiming Wang2, Weiqin Zhou2; 1Beijing Univ of Posts & Telecom, China; 2ZTE Corporation, China. A frequency domain 4×2 multi-input and multi-output equalizer based on radius directed equalization for long-haul transmission systems is proposed, which can compensate the coherent receiver’s in-phase/quadrature imbalances and skew .

T4A.104 Transfer Learning Aided Optical Nonlinear Equalization Based Feature Engineering Neural Network, Xianda Ren1, Yongjun Wang1, Chao Li1; 1Beijing Univ Posts & Telecommuni- cations, China. We study the training mechanism of FE-DNN . The efficient training process is experimentally demonstrated for DP-16QAM coherent optical communication system . We have validated the training time can be reduced by 80% aided by transfer learning .

T4A.105 Analysis of Eigenvalues Perturbation Induced Phase Noise for Nonlinear Frequency Division Multiplexing Systems, Yingrong Chen1, Xi Fang1, Ding Ding1, Jiaqi Xiong1, Lei Zhang1; 1Beijing Electronic Science and Technology Inst., China. We studied phase noise of discrete b-coefficients caused by eigenvalues perturbation for NFDM systems and provided an analytical solution to evaluate the impact of the perturbation on system performance for various transmission distances .

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T4A.106 Carrier Frequency Offset Estimation by Resampling-Free Uniform Particle Filter for CO-OFDM, Ruijie Wang2, Xinwei Du2, Changyuan Yu1, Pooi-Yuen Kam3; 1The Hong Kong Poly- technic Univ., Hong Kong; 2BNU-HKBU United International College, China; 3Chinese Univ. of Hong Kong, Shenzhen, China. This paper proposes a resampling-free uniform particle filter to estimate the carrier frequency offset in CO-OFDM systems which solves the particle impoverishment problem and shows better noise and particle number tolerance compared with existing algorithms .

T4A.107 Investigation of MPI Impact for Below Cut-Off Wavelength Transmission in G.654.E Fiber Link, Jiachuan Lin1, Behnam Naghdi1, Lixian Wang1, Zhiping Jiang1; 1Huawei Technologies Canada, Canada. We numerically study the MPI induced penalty for data transmission below G .654 .E cut-off . Negligible impact is shown for short-C band while performance degradation is evaluated for O/E/S bands providing input for future comprehensive system analyses .

T4A.108 High-Performance Rotation-Decision Blind Phase Search Algorithm for M-QAM Signals, Pengfei Wang2, Mingyi Gao1, Fengchu Cao1, Xiaodi You1, Gangxiang Shen1; 1Soochow Univ., China; 2Soochow Univ., China. We proposed a novel rotation- decision blind phase search algorithm for carrier phase recovery of M-QAM signals . For the scenarios of severe phase noise, the proposed method can achieve 10% BER improvement with the fast convergence .

T4A.109 Training Sequence Based Cycle Slip Suppression for FTN- 16QAM Coherent Optical Systems, Yingkai Qin1, Tao Yang1; 1Beijing Univ. of Posts and Telecommunications, China. A carrier phase estimation algorithm based on training sequence is proposed for FTN-PM-16QAM system . The simulation results show that it could suppress cycle slips and exhibit a linewidth tolerance of 2 .2MHz @BER=2E-2 with 0 .39% overhead .

T4A.110 Low-Cost WDM Wavelength Channel Optical Power Moni- toring Based on PAM4 Optical Labels, Jiao Wang1, Tao Yang1, Sheping Shi2, Jinhao Du1, Zhengyu Liu1; 1Beijing Univ. of Posts and Telecommunications, State Key Lab of Information Pho- tonics and Optical Communications, China; 2ZTE Corporation, China. A low-cost WDM wavelength channel optical power monitoring scheme based on PAM4 optical label signal is proposed . Accurate power monitoring of whole channels can be realized economically .

T4A.111 Phase Regeneration for MDM Signals by Few Mode Phase Sensitive Amplification, Baining Ye1, Jiangbing Du1, Zhaonian Wang1, Zuyuan He1; 1Shanghai Jiao Tong Univ., China. MDM PSA for all-optical mode selective and mode equalized phase regenerations is proposed and investigated . The EVMs of regenerated MDM signal on two modes can be reduced by 16 .854 dB and 18 .022 dB respectively .

T4A.112 Physical Layer Security Encryption in CO-OFDM Based on Chaotic 3D Constellation Scrambling, Yiqun Zhang1, Ning Jiang1, Shiqin Liu1, Anke Zhao1, Jiafa Peng1, Kun Qiu1; 1Univ of Electronic Science & Tech China, China. We propose and experimentally demonstrate a novel chaos-based 3D constellation scrambling scheme in CO-OFDM system . The experimental results show that the proposed encryption scheme supports simultaneous enhancement for physical layer security and transmission performance .

T4A.113 High-Repetition-Rate Optical Pulses Generation Using a Phase-Modulator-Based Optoelectronic Oscillator, Ruifeng He1, Juanjuan Yan1; 1Beihang Univ., China. An optical pulse generator based on an optoelectronic oscillator (OEO) using a phase-modulator is demonstrated . Optical pulses with a full width at half maximum of 7 .34 ps at 10 GHz repetition rate are generated .

T4A.114 Quantization Noise Mitigating Based on Modified Non- uniform Quantization in Learned Digital Backpropagation, Xiangyu Yang1, Du Tang1, Zhen Wu1, Yaojun Qiao1; 1Beijing Univ. of Post. and Telecom., China. A nonuniform quantization method based on A-law compression is proposed to mitigate quantization noise of learned digital backpropagation . The Effective SNR of nonuniform quantization is improved about 0 .41 dB over uniform quantization under 8-bit quantization .

T4A.115 Pilot-Tone Assisted Successive Interference Cancellation for Coherent Subcarrier Multiplexed Multipoint-to-Point Mobile Fronthaul, Longjie Yin1, Yixiao Zhu1, Qi Wu1, Hexun Jiang1, Qunbi Zhuge1, Weisheng Hu1; 1Shanghai Jiao Tong Univ., China. We propose a pilot-tone assisted successive interference cancellation scheme to mitigate the laser drift-induced inter- subcarrier interference . 50% and 15% bandwidth reduction are experimentally demonstrated with QPSK and 16QAM formats, fitting well with theoretical derivation .

T4A.116 Peak Power Distribution Based Nonlinear Parameter Optimi- zation for Digital Back-Propagation, Meng Yang1, Pinjing He1, Aiying Yang1, Peng Guo1; 1Beijing Inst. of Technology, China. A nonlinear parameter optimized scheme based on peak power distribution is proposed for DBP algorithm . The 1 dB Q-factor gain is achieved in the simulation transmission of 32-GBaud PDM 16-QAM signal with a 24*100km single channel .

T4A.117 Experimental Demonstration of Ring Airy Vortex Beam Free-Space Data Transmission Under Limited-Size Receiving Aperture and Atmosphere Turbulence, Long Zhu1, Andong Wang1, Mingliang Deng1, Bing Lu1; 1SCIE CQUPT, China. We successfully demonstrate 72 Gbit/s free-space data transmission with quasi-ring Airy vortex beams (QRAVBs) . The obtained results show that QRAVBs can achieve better BER performance comparing with conventional OAM beams under limited-size receiving aperture and atmosphere turbulence .

T4A.118 Design and Implementation of Beacon Tracking System in Vehicle-Mounted Laser Communication Based on Tobit Kalman Filtering Algorithm, Jiao Xiong1,2, Yueying Zhan1, Yang Sun1, Lei Yang1; 1Key Laboratory of Space Utilization, Technology and Engineering Center for Space Utilization, Chinese Academy of Science, China; 2Univ. of Chinese Acad- emy of Sciences, China. The beacon tracking system based on TKF algorithm is designed and implemented on FPGA . The feasibility and performances of the system are verified by the beacon tracking system in vehicle-mounted laser communication system .

T4A.119 Digital Mobile Fronthaul Based on Noise-Coupling MASH Delta-Sigma Modulator With Enhanced Noise-Shaping, Wenqin Tan1, Zhibin Luo1, Wei Wang1, Xiaowu Wang1, Fan Li1; 1Sun Yat-Sen Univ., China. A digital mobile fronthaul based on noise-coupling MASH delta-sigma modulator enabling carrier aggregation is simulated, the EVM floor is 0 .4%, and 1 .5-dB receiver sensitivity improvement is achieved compared with the conventional MASH structure .

T4A.120 Security Enhancement for CO-OFDM/OQAM System Using Twice Chaotic Encryption Scheme, Xi Fang1, Ling Xiao1, Yang Zhou1, Cheng Zhao1, Zifang Yu1; 1BESTI, China. In this paper, we propose a twice chaotic encryption scheme to improve the security of CO-OFDM/OQAM system . Simulation results show that the proposed scheme enhance the physical-layer security within the acceptable performance penalt .

T4A.121 Free-Space Optical Communication With Radial Phase Controlled Orbital Angular Momentum Beam, Yue Zhu1, Long Zhu1; 1SCIE CQUPT, China. By controlling the radial phase distribution of conventional orbital angular momentum (OAM) beams, we successfully generate OAM-carrying light beams with anti-divergence property, which could significantly reduce the power loss in an OAM-based free-space optical link .

T4A.122 Lightning Induced Fast RSOP Modeling and its Tracking With Large PMD, Jian Li1, Tao Yang1, Yongben Wang2, Weim- ing Wang2, Weiqin Zhou2, Lei Yuan2, Xue Chen1, Mengli Yue1; 1Beijing Univ. of Posts and Telecommunications, China; 2ZTE Corporation, China. A double exponential function based accurate model of lightning induced fast RSOP is presented . A novel tracking algorithm based on cascaded EKF-RDE is proposed for tracking the fast RSOP with large PMD .

T4A.123 Experimental Demonstration of Security Evaluation via Hamming Distance in Quantum Noise Stream Cipher, Wang Bo1, YaJie Li1, Chao Lei1, Kongni Zhu1, Yongli Zhao1, Jie Zhang1; 1State Key Laboratory of Information Phot, China. We introduce the metric of fractional Hamming distance to evaluate the security of quantum noise cipher system . Experimental results show that this metric is helpful to analysis and measurement in practical communications with finite-block lengths .

T4A.124 Performance Analysis and Design Optimization of Single Photon Counting Communication Based on SNSPD, Ziyuan Shi1, Yueying Zhan1, Wenjing Guo1, Lei Yang1; 1Key Laboratory of Space Utilization, Technology and Engineering Center for Space Utilization, China. The performances of multiple photons arriving at SNSPD in single photon counting communication are simulated and analyzed . Results show that the guard time (GT) between two pulses directly affects the performance of the system at a certain mean photon .

T4A.125 Machine Learning Classification vs. Regression for NFDM Transmission With Discrete Spectrum, Cheng Yijun1, Songnian Fu2, Yutian Wang1, Lumin Zhao1; 1Hust, China; 2gdut, China. We investigate the impact of machine learning classification versus regression on the performance of NFDM transmission with discrete spectrum modulation . The classification is more conducive than the regression, in term of the SSMF reach enhancement .

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T4A.126 Multi-User MIMO Visible Light Communication Using BD Schemes With Downlink Precoding, Junichi Makimura1, Ryohei Yamamoto1, Hirokazu Kobayashi1, Katsushi Iwashita1; 1Kochi Univ. of Technology, Japan. Precoding MU-MIMO VLC using BD methods have been investigated . To increase the network capacity, adaptive modulation is applied to 4 LEDs and 4 PDs network . PAM4 is applied at higher SNR channel and successfully conducted .

T4A.127 Combination 4D-2A8PSK Modulation and Neural Network Receiver in Discrete Spectra Modulated Nonlinear Frequen- cy Division Multiplexing Systems, Jiayun deng1, Jiacheng wei1, Xulun Zhang1, Lixia Xi1, Wenbo Zhang1, Xiaosheng Xiao1, Xiaoguang Zhang1; 1Beijing Univ. of Posts and Telecommunica- tions, China. A combination scheme of 4D-2A8PSK modulation with neural network receiver is proposed to improve the performance of the discrete spectra modulated nonlinear frequency division multiplexing systems . The transmission distance extends from 1000km to 2100km .

T4A.128 Bias Control of the Nested Six MZ Modulators in a Two- Channel OTDM Transmitter Using Single Frequency Tone and Single Photodiode Monitor, Xingwen Yi1, Zhihui Huang1, Fan Li1; 1Sun Yat-Sen Univ., China. We discuss the bias control of the nested six MZ modulators in a two-channel OTDM transmitter . Using two frequency tones as probe and single photodiode as monitor, all of the bias conditions can be correctly set .

T4A.129 Transmission of 10×400-Gb/s PS-16QAM Over 4300-km LEAF Using Composite Carrier Recovery Scheme, Wu Liu1,2, Hai Bo Li1,2, Ming Luo1,2, Chao Yang1,2; 1Wuhan Research Inst. of Post & Tele, China; 2National Optoelectronics Innovation Center, China. We have experimentally demonstrated 10×400- Gb/s PS-16QAM transmission over 4300-km LEAF . Digital pilot and FIR filter embedded with DD-LMS are applied to facilitate the carrier recovery of PS-QAM signal and overcome the fast phase fluctuations

T4A.130 Compact Silicon Photonic Waveguide Crossings With Sub-10-mdB Loss, Yingying Peng1, Huan Li1, Daoxin Dai1; 1Zhejiang Univ., China. We have designed and experimentally demonstrated silicon photonic waveguide crossings for the TE fundamental mode with record-low loss of 6±2 mdB in the wavelength range of 1520-1560 nm .

T4A.131 Attention Mechanism Based Multi-Channel QoT Estima- tion in Optical Networks, Yuhang Zhou1, Zhiqun Gu1, Jiawei Zhang1, Yuefeng Ji1; 1BUPT, Beijing, China. We proposed an attention mechanism based multi-channel QoT estimator for precise QoT estimation . Results show that our scheme decreases 49 .71% and 56 .1% MSE on average in Jnet and NSFnet than classic ANN-based QoT estimator respectively .

T4A.132 Link-Oriented Spectrum Resource Balancing for Hybrid Edge/Cloud Elastic Datacenter Optical Networks, Bowen Bao1, Hui Yang1, Qiuyan Yao1, Chao Li1, Bijoy C . Chatterjee2, Eiji Oki3; 1Beijing Univ. of Posts and Telecomm, China; 2Depart- ment of Computer Science, South Asian Univ. (An international Univ. established by SAARC nations), India; 3Graduate School of Informatics, Kyoto Univ., Japan. This paper proposes a link-oriented spectrum resource balancing scheme for hybrid edge/cloud elastic datacenter optical networks by presenting a novel weighted Shannon entropy-based fragmentation metric . Simulation results show the proposal can decrease the blocking probability .

T4A.133 Optically Centralized Beamforming for MmWave Cloud RAN Systems: Impact of Beam Alignment, Huan Huang1, Jie Peng1, Xiaowen Wang1, Chongfu Zhang1, Kun Qiu1; 1Univ. Electron. Sci. & Technol. China, China. In this paper, we investigate directional millimeter-wave cloud radio access network systems using optically centralized beamforming . To evaluate the impact of beam alignment, the beamforming gain function and the cumulative distribution function are analyzed .

T4A.134 Load-Balanced Protection for Mobile Edge Computing Services in Fiber-Wireless Access Networks, Xinyu Wang1, Yongcheng Li1, Danyang Zheng1, Jiemin Lin1, Gangxiang Shen1; 1Soochow Univ., China. To protect MEC services in a FiWi access network, we propose a LBP strategy . Simulations show that LBP strategy is efficient in terms of maximum load on servers and bandwidth resource consumption .

T4A.135 Secure and Efficient Resource Allocation for Anti-Eavesdrop- ping in MCF-Based SDM-EONs, He Xu1, Hongxiang Wang1, Yuefeng Ji1; 1BUPT, China. We propose a secure and efficient resource allocation scheme for anti-eavesdropping in MCF- based SDM-EONs . Simulation results show that our scheme significantly reduces the intercept possibility of eavesdroppers while maintaining the quality of transmission .

T4A.136 A Grouped Handover Scheme for Optical ISL in Satellite Network, Hai Yang1, Bingli Guo1, Mingjiang Fu1, Chengguang Pang1, Shanguo Huang1; 1State Key Laboratory of Informa- tion Photonics and Optical Communication, Beijing Univ. of Posts and Telecommunications, China. This paper proposes a grouped handover scheme for optical ISL to address network performance degradation caused by frequent link switching . Simulation results show that the average loss rate and delay performance are improved 77 .6% ,5 .9% .

T4A.137 An SDN-Enabled Optical Transport Network Simulation Platform for Cross-Domain TSN Service, Xiangyang Zhong1, Jian Zhu1, Bingli Guo1, Qian Li1, Shanguo Huang1; 1Beijing Univ. of Posts and Telecommunications, China. An SDN-enable optical transport network simulation platform is proposed . The core functions routing and resource prejudge strategy are deployed . The platform is more effectively supports the end-to-end service resource prejudge in cross-domain Time- Sensitive Networks .

T4A.138 Harmony Search Based Multi Faults Localization for 5G Coexisting Radio and Optical Wireless Networks, Jingjie Xin1, Xin Li1, Ying Tang1, Lu Zhang1, Jianghua Wei1, Yongjun Zhang1, Shanguo Huang1; 1Beijing Univ. of Posts and Telecom- munications, China. Harmony search algorithm is utilized to solve multi-faults localization problem in coexisting radio and optical wireless networks . When traffic load is around 500 Er- lang, the localization accuracy achieves 97 .5%, and localization time is within 0 .94s .

T4A.139 Delivering Ring Allreduce Services in WSS-Based All-Optical Rearrangeable Clos Network, Zhenwei Zhai1, Jiemin Lin1, Yongcheng Li1, Danyang Zheng1, Zeshan Chang2, Liangjia Zong2, Ning Deng2, Tianhai Chang2, Gangxiang Shen1; 1So- ochow Univ., China; 2Huawei Technologies, China. To deliver Ring allreduce services in a WSS-based all-optical rearrangeable Clos network, we propose a 2-dim matrix-based TTWA algorithm . Simulation studies show the proposed algorithm is efficient in time-slot and wavelength resource assignment .

T4A.140 Routing Conflict Reducing Scheme for Concurrent Traffic Requests in Satellite Optical Networks, Lin Li1, Xinyi He1, Hua Wang1, Wei Wang1, Yongli Zhao1, Jie Zhang1; 1Beijing Univ. of Posts and Telecommunications, China. A routing conflict routing algorithm is proposed to reduce the conflicts of route construction caused by high concurrency in satellite optical networks . The algorithm has good performance in request success rate, delay and bandwidth utilization .

T4A.141 Blockchain-Based Resources Trusted Consensus Solution for Multi-Domain Edge Optical Networks, Yudong Zhang1, Ruijie Zhu1, Shihua Li1, Shuo He1; 1Zhengzhou Univ., China. Aiming at solving the security issue in multi-domain edge optical networks, we propose a trusted consensus solution based on blockchain and design a high-efficient consensus algorithm to meets the low-latency requirement of optical networks .

T4A.142 An Upstream Latency Optimization Scheme for TDM-PON Fronthaul Network Based on Double Polling Mechanism, Zhiwei Xu1, Jun Li2, yu xi1, Yunxin Lyu1, Meihua Bi2; 1Hangzhou Dianzi Univ., China; 2School of Electronic Engineering, Soochow Univ., China. We present a latency optimization scheme based on double polling mechanism for TDM-PON fronthaul network . And by conducting the simulation, its feasibility is manifested .

T4A.143 Accurate Underwater Optical Wireless Communication (UOWC) Channel Model, Chengwei Fang1, Shuo Li1, Ke Wang1; 1RMIT Univ., Australia. UOWC systems have been widely studied to achieve high speed communications . In this paper we establish an accurate model with both signal and background lights, incorporating the previously overlooked impact of incident angle .

T4A.144 Improved DASH Video Streaming Performance by MEC- Enabled Optical Access, Carlo Centofanti1, Andrea Ma- rotta1, Claudia Rinaldi1, Fabio Franchi1, Dajana Cassioli1, Fabio Graziosi1; 1Univ. Of L’Aquila, Italy. We discuss how different service placement can improve DASH performances on an edge-enabled architecture in a MEC infrastructure . Network experiments emulate a real optical network behaviour allowing to measure improvements with different service placement

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T4A.145 A Q-Learning-Based Power Allocation Method for Two-Tier Heterogeneous Networks, Qingyuan Liu1, Qi Zhang1, Jinxi Qian2, Dong Chen2, Ying Tao2, Qinghua Tian1, Feng Tian1, Yi Zhao1, Mai Yang1; 1Beijing Univ. of Posts and Telecomm, China; 2China Academy of Space Technology （CAST）, China. A novel Q-learning-based power allocation method is proposed for two-tier heterogeneous networks (HetNets) . Numerical results show that this method can balance the capacity, the quality of service (QoS) of users, fairness and power consumption .

T4A.146 Adjustable Window Based Online Scheduling in Mobile Fron-

T4A.150 Demonstration of 25 Gb/s NRZ Modulated 1.3 μm Surface- Emitting DFB Lasers, Jing Luan1, Yu Han1, Sikang Yang1, Ruigang Zhang1, Qi Tian1, Pengxiang He1, Deming Liu1, Min- ming Zhang1; 1Huazhong Univ. of Science and Technology, China. We present a 1 .3 μm surface-emitting DFB laser with second order grating and double section ridge waveguide . The lasers can achieve stable single mode operation with threshold current 13 .5 mA, and 25 Gb/s modulation rates

T4A.151 Temperature-Controlled Upconversion Luminescence of Yb3+/Er3+ Co-Doped ZrV O Crystals, Jie Wang1, Zhenzhou

T4A.155 Plasmon Coupling of Silver Nanowires in Optical Communi- cation Band, Ying Qiu1; 1State Key Laboratory of optical fiber communication technology and network, China information and Communication Technology Group Co., China. The effects of the output wavelength(1530nm~1565nm) of the tapered fiber, the angle and the gap between the silver nanowire and the tapered fiber on the plasmon coupling of silver nanowires are studied experimentally .

T4A.156 Efficient Mid-Infrared Dispersive Wave Emission in LiNbO3

Waveguides Using a Weak CW Trigger, Feng Ye1, Jiayao

T4A.160 Deep Learning-Assisted Design of Integrated 2×2 Linear Optical Processors, Simei Mao1, Lirong Cheng1, Faisal N . Khan1, H .Y . Fu1; 1Tsinghua Univ., China. We propose a joint deep neural network that both instantaneously predicts the transfer matrices of QR-code patterned optical processors and inversely designs optical processors for target transfer matrix with over 80% accuracy .

T4A.161 Design of High Bandwidth Efficiency Product Gradual Doped Partially Depleted Absorber Photodetector With Spacer Layer, Chuanxing Jiang1, Huijuan Niu1,2, Houzeng

thaul, Chen Su1, Hao Yu2, Jiawei Zhang1, Yuefeng Ji1; 1Beijing 2 7 Cheng1, Tiegen Liu1; 1T ., China. We synthesized and Huang1, Qian Li1; 1Peking Univ., China. We numerically pro- Wang1, Xinye Fan1, Wenjing Fang1, Xia Zhang1; 1Liaocheng Univ. of Posts and Telecomm, China; 2Aalto Univ., Finland. We

characterized a new ianjin Univ O :Yb3+/Er3+ crystals, whose pose a low-consumption scheme to enhance the mid-infrared Univ., China; 2Beijing Univ. of Posts and Telecommunications,

propose an online scheduling scheme with adjustable transmis- upconversion type of ZrV2 7 be controlled by adjust- dispersive wave by adding a weak CW trigger, and the optimal China. A partially depleted absorber photodetector with

sion window in fronthaul . The simulation results show that our scheme improves 22 .6% schedulability and 42 .7% resource

ing luminescence color can

temperature . CW-triggering wavelength is ascertained to be half modulation instability gain bandwidth .

spacer layer is presented, which adopts Gaussian profile dop- ing . The bandwidth is 59 .8GHz and the quantum efficiency is

utilization on average than traditional schemes respectively .

T4A.147 Load Balanced Traffic Grooming in IP Over Quasi-CWDM Network, Jiaqi Zhou1, Anliang Cai2, Xiaodi You1, Yongcheng Li1; 1Soochow Univ., China; 2College of Telecommunications & Information Engineering, Nanjing Univ. of Posts and Telecom- munications, China. We propose traffic grooming strategies to balance traffic loads in an IP over quasi-coarse wavelength division multiplexing (Quasi-CWDM) network . Results show that the proposed waveplane strategy is the most efficient in load balance in terms of the maximum number of used wavelengths and the variance of the numbers of wavelengths used in links .

T4A.148 Silicon Nitride Optical Phased Arrays With Large Beam Steering Range and Small Divergence Angle, Zhenmin Chen1, Shupeng Deng1, Xiaomin Nie1; 1Robotics Research Center, Peng Cheng Laboratory, China. We demonstrate a 1024-channel grating-based antennas phased array fabricated on silicon nitride platform . The beam steering angle range can reach to 56° in the longitudinal direction while the divergence angle is only 0 .023° .

T4A.149 Silicon Optical Phased Array Based on Carrier-Depletion Phase Shifters, Zhaoyang Zhang1, Gikai Huang1, Zhiyan Zhou1, Yuehai Wang1, Hui Yu1, Jianyi Yang1; 1Zhejiang Univ., China. We demonstrate a 64-channel optical phased array based on carrier-depletion phase shifters . It offers ultra-high operation speed (0 .7GHz phase shifter bandwidth) and ultralow power consumption (0 .45nW/ π), which accelerates beam steering greatly .

T4A.152 Distributed-Bragg-Reflector Laser Integrated With Spot Size Converter for FMCW LiDAR System, Gong Zhang1, Shihuan Ding1, Kuankuan Wang1, Chun Jiang1, Qiaoyin Lu1, Weihua Guo1; 1Wuhan National Laboratory for Optoelectron- ics &School of Optical and Electronic Information, China. We demonstrate a distributed-Bragg-reflector (DBR) laser integrated with spot size converter (SSC) . The power coupled into a lensed fiber increases to 64% at 120 mA gain current and 200 mA SOA current .

T4A.153 Photonic Unitary Neural Network Chip With Complex- Valued Transformation Layer, Ruiting Wang1,2, Pengfei Wang1,2, Guangzhen Luo1,2, Hongyan Yu1,2, Xuliang Zhou1,2, Yejin Zhang1,2, Wei Wang1,2, Jiaoqing Pan1,2; 1Inst. of Semicon- ductors, CAS, China; 2Univ. of Chinese Academy of Sciences, China. We propose a complex-valued transformation layer whose architecture is compatible with the photonic unitary neural network chip . We simulate unitary neural networks on the MNIST dataset and complex-valued transformation layer can significantly improve the accuracy .

T4A.154 Self-Injection Locked Quantum-Dash Laser Source in Millimeter-Wave-Over-Fiber 4 Gbits/s QPSK Transmission, Qazi Tareq1, Mohammed Zahed M . Khan1; 1King Fahd Univ of Petroleum & Minerals, Saudi Arabia. We demonstrate a 28-GHz millimeter-wave-over-fiber transmission employing self-injection-locked ~1610-nm InAs/InP quantum-dash dual- mode laser comb source . Successful transmission of 4-Gb/s QPSK data signal over 10-km single-mode fiber is achieved, strengthening its potential in next-generation networks

T4A.157 On-Chip Broadband and Reconfigurable Quasi-Circulator Based on Mode Conversion, Longhui Lu1, Deming Liu1, Max Yan2, Minming Zhang1; 1Huazhong Univ. of science and technology, China; 2Department of Applied Physics, KTH Royal Inst. of Technology, Sweden. We propose a unique concept to implement an optical quasi-circulator based on mode conversion without using nonreciprocity . Such circulator is CMOS-compatible, reconfigurable, broadband and could be extended for more ports .

T4A.158 Numerical Analyzation of Distributed Feedback Lasers With Different Phase Shift Structures, Bo Wang1, Peiqi Zhou1, Xingjun Wang1; 1Peking Univ., China. We optimize phase shift structures of distributed feedback (DFB) lasers . For the multi- distributed phase shift laser, the output slope can reach up to 51 .90% when the optimal cavity length is 2 .2 mm .

T4A.159 Switchable Perfect Soliton Crystal Microcombs Based on Controllable Mode Coupling, Zhonghan Wu1,2, Yiran Gao1,2, Tian Zhang1,2, Jian Dai1,2, Kun Xu1,2; 1State Key Laboratory of In- formation Photonics and Optical Communications, Beijing Univ. of Posts and Telecommunications, China; 2School of Electronic Engineering, Beijing Univ. of Posts and Telecommunications, China. A dual-coupled microresonator structure is proposed to change the repetition rage of soliton crystal microcombs . Numerical model based on coupled mode equations indicates that bidirectional switching can be realized in the presence of parametric gain .

60 .4% . The bandwidth efficiency product is 36 .11GHz which is 49 .7% higher than conventional partially depleted absorber photodetector under the same active area and bias voltage .

T4A.162 A Gradient-Oriented Binary Search Method for Photonic De- vice Design, Haoxiang Chen1, Hao Jia1, Tao Wang1, Jianhong Yang1; 1Lanzhou Univ., China. We propose a gradient-oriented binary search method to accelerate the optimization convergence and optimize a bimodal interferometer as verification . The convergence speed of proposed method is tens of times than direct binary search method .

T4A.163 Autonomous Control Model for C+L Multi-Band Photonic Switch System Using Machine Learning, Ihtesham Khan1, Lorenzo Tunesi1, Muhammad Umar Masood1, Enrico Ghillino2, Paolo Bardella1, Andrea Carena1, Vittorio Curri1; 1Politecnico di Torino, Italy; 2Synopsys, USA. We propose a data-driven technique for autonomous management of NxN photonic switching systems in a software-defined networking setup . This work aims to demonstrate the C+L multi-band switching system and proposed a softwarized model for control .

T4A.164 UONN: Energy-Efficient Optical Neural Network, Jiaxu Zhang1, Yinyi Liu1, Jun Feng1, Shixi Chen1, Xiaowen Dong2, Wutong Yu2, Jiang Xu3,1; 1ECE Department, Hong Kong Univ. of Science and Technology, Hong Kong; 2Central Research Inst., Huawei Technologies Co., Ltd, China; 3Microelectronics Thrust, Hong Kong Univ. of Science and Technology, China. This work proposes a novel loop-based optical neural network UONN capable of large-scale vector-matrix multiplications . Results show that UONN can achieve up to 6000× higher energy efficiency than existing MZI-based neural network .

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T4A.165 Technical Characteristic Improvement for Tunneling Injection Transistor Laser Using Single Barrier-Double Quantum Well Graded Structure, Ghazaleh Noorbakhsh1, Hassan Kaatuzian1, Behzad Namvar1; 1Photonics Research Laboratory, Iran (the Islamic Republic of). Here, we represent a double quantum well Tunnel-Injection graded-base Transistor Laser with one barrier . We achieved a 37 .5% reduction in threshold current, and an 11 .1GHz increment in optical bandwidth compared to previously reported results .

T4A.166 A Novel Dual-Absorption Photodetector With High Band- width-Efficiency-Product, Houzeng Wang1, Huijuan Niu1,2, Ch- uanxing Jiang1, Wenjing Fang1, Xinye Fan1, Xia Zhang1; 1School of Physics Science and Information Technology, Shandong Provincial Key Laboratory of Optical Communication Science and Technology, China; 2State Key Laboratory of Information Photonics & Optical Communications, Beijing Univ. of Posts and Telecommunications, China. A novel high bandwidth- efficiency-product dual-absorption photodetector is designed . The 3dB bandwidth of 39 .3GHz and the quantum efficiency of 63% are achieved, and thus the bandwidth-efficiency-product is improved by 30% compared with mushroom dual-absorption photodetector .

T4A.167 Silicon Nanophotonic Waveguide for High Degree Soliton Compression at 2.0 μm, Jiayao Huang1, Feng Ye1, Qian Li1; 1Peking Univ., China. Numerical simulation of cascaded higher-order soliton compression in the silicon nanophotonic waveguide is reported, where 1 ps initial pulse is compressed to 31 .1 fs with a high compression factor of 32 .17 at 2 .0 μm .

T4A.168 Compact Lithium Niobate-on-Insulator/ InP O Band External Cavity Laser, Xian Zhang1, Ya Han1, Xinlun Cai1; 1Sun Yat-sen Univ., China. We demonstrated an O band external cavity laser by butt coupling thin film lithium niobate chip with reflective InP gain chip . Laser feedback is achieved by using LN based distributed Bragg reflector and Vernier micro-ring resonators .

T4A.169 High-Performance Thermo-Optically Tuned Multi-Channel In- terference Widely Tunable Laser in TOSA Package, Kuankuan Wang1, Zifeng Chen1, Quanan Chen2, Chun Jiang1, Qiaoyin Lu1, Mingzhi Lu2, Weihua Guo1,2; 1Wuhan National Laboratory for Optoelectronics &School of Optical and Electronic Information, Huazhong Univ. of Science and Technology, China; 2Ori-Chip Optoelectronics Technology Co. Ltd., China. High-performance thermal-optically tuned multi-channel interference widely tunable laser in TOSA package was demonstrated with the tuning range covering the C++ band, and the Lorentzian linewidth being less than 100 kHz .

T4A.170 Physical Limitation Aware Quantization Model for Photonic Convolutional Neural Network, Jiang Yue1, Wenjia Zhang1, Yang Fan1, Zuyuan He1; 1State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong Univ., China. We propose a physical limitation aware clustered quantization model by considering precision device limitation in the training process of integrated photonic CNN, showing 98 .5% recognition accuracy for MNIST handwirtten recognition with 2-bit precision .

T4A.171 Sole Excited-State InAs Quantum Dot Laser on Silicon With Strong Feedback Resistance, Jiajian Chen1, Zihao Wang1,2, wenqi wei3, Ting Wang1,2, Jianjun Zhang1,2; 1Beijing National Laboratory for Condensed Matter Physics, Inst. of Physics, Chi- nese Academy of Sciences, China; 2Center of Materials Science and Optoelectronic Engineering, Univ. of Chinese Academy of Sciences, Beijing, China; 3Songshan Lake Materials Laboratory, China. We demonstrated first sole excited-state lasing InAs QD lasers on Si with 28 dB higher optical feedback resistance over both FP and DFB QW lasers, which propose QD DFB laser with potentially fully feedback tolerance

T4A.172 Design of High-Performance TE1-to-TE0 Mode Converter Integrated With Deep-Etched Laterally-Coupled Distributed Feedback Laser, Hancheng Zhong1, Zhuohui Yang1, Lin Liu1, Ying Yu1, Siyuan Yu1,2; 1Sun Yat-sen Univ., China; 2Univ. of Bristol, UK. We configure a mode converter for the conversion of the higher-order mode (TE1) output from deep-etched laterally- coupled distributed feedback (DFB) laser into the desired fundamental mode (TE0), with a high efficiency of 98 .9% at 1310 nm and >95% over the O-band .

T4A.173 Dynamic Epsilon-Near-Zero Wavelength Tuning and Switch- ing Properties of Hyperbolic Metamaterials, Zetao Xie1, Jiaye Wu1, Yanhua Sha1, H .Y . Fu2, Qian Li1; 1Peking Univ., China; 2Tsinghua Univ., China. We demonstrate the tuning of the epsilon-near-zero wavelength from telecommunication to mid-infrared regime in hyperbolic metamaterials by pump excitation . The structure has a dynamic switching modulation of up to 8 .4 dB .

T4A.174 Design of an O-Band Polarization Insensitive SOAs on IMOS for High-Performance Optical Switches, Desalegn Wolde Feyisa1, Yuqing Jiao1, zhaowei Chen1, Nicola calabretta1, Ripalta Stabile1; 1Eindhoven Univ. of Technology, Netherlands. We report the design of a polarization-insensitive SOA in IMOS- platform with worst-case polarization sensitivity of 0 .8 dB over 60 nm bandwidth and 26 dB input power range . 500 μm-long SOA provides 21 dB peak gain .

T4A.175 Mode Conversion Based Silicon Mach-Zehnder Modulator With L-Shaped PN Junction for 0.37-Vcm vπLπ High Effi- ciency Modulation, Jiacheng Liu1, Gangqiang zhou1, Jiangbing Du1, Weihong Shen1, Linjie Zhou1, Zuyuan He1; 1Shanghai Jiao Tong Univ., China. We reported a silicon modulator with L-shaped PN junction for high efficiency modulation based on mode conversion to recycle light twice within the modulator phase shifter . Record low VπLπ of 0 .37 Vcm was experimentally demonstrated .

T4A.176 Real Time Frequency Offset Measurement and Compensa- tion Technique Scheme for DFB Lasers, Hongliang Li1, Da Chen1, Yonglin Yu1; 1Wuhan National Laboratory for Optoelec- tronics, Huazhong Univ. of Science and Technology, China. A real time frequency offset measurement and compensation scheme is experimentally demonstrated for DFB lasers . Results indicate the frequency drift can be suppressed down to 100MHz by using a feedback control loop based on FPGA .

T4A.177 Inverse Design of Ultra-Compact Shallow-Etched Polariza- tion Splitter and Rotator, Yinghui Wang1, Simei Mao1, Lirong Cheng1, Caiyue Zhao1, H .Y . Fu1; 1Tsinghua-Berkeley Shenzhen Inst., China. We designed a polarization splitter and rotator via topology optimization . The conversion loss is lower than 1 .2 dB at the wavelength range of C-band within 6×2 μm2 footprint .

T4A.178 EIT-Like Phenomena in Quadratically Coupled Optome- chanical Cavities for Optical Information Storage, Yang Luo1,2, Zhenmin Chen1,2, Qian Li3, H .Y . Fu1,2; 1Tsinghua-Berkeley Shenzhen Inst., Tsinghua Univ., China; 2Tsinghua Shenzhen International Graduate School, Tsinghua Univ., China; 3School of Electronic and Computer Engineering, Peking Univ., China. We theoretically investigated the EIT-like phenomena in a quadratically coupled cavity . On this basis, we show that the light pulse can be stopped and stored with a pulse bandwidth compression process .

T4A.179 Membrane Multiple Quantum Well Electro-Optical Modula- tor Based on High-k Material, Jianghao Xing1, Changzheng Sun1, Bing Xiong1, Jian Wang1, Zhibiao Hao1, Lai Wang1, Yanjun Han1, Hongtao Li1, Jiadong Yu1, Yi Luo1; 1Tsinghua Univ., China. A membrane MQW elector-optic modulator based on high-k material is proposed . A half-wave voltage-length product of 0 .38 V×cm is estimated, together with over 200 GHz bandwidth for a 2-mm-long device .

T4A.180 Large-Scale Single Mode Semiconductor Laser Arrays Based on Parity-Time Symmetry, Sikang Yang1, Jing Luan1, Yu Han1, Ruigang Zhang1, Qi Tian1, Pengxiang He1, Deming Liu1, Min- ming Zhang1,2; 1Huazhong Univ. of Science and Technology, China; 2Wuhan National Laboratory for Optoelectronics, China. We here propose a simple method in realizing large-scale laser arrays based on PT symmetry . By utilizing the abrupt symmetry breaking transition, a single-mode laser arrays consist of eighteen ridge-waveguide cavities has been demonstrated .

T4A.181 Artificial Synaptic Devices With Photoelectric Properties Based on Ionic Gel and Graphene, Shilin Liu1, Jiale Su2, Mengyuan Li1, Xiaoying He1, Lan Rao1, Chong Li3, Qi Zhang1, Xiangjun Xin4; 1Beijing Univ. of Posts and Telecommunications, China; 2Inst. of microelectronics, Chinese Academy of Sciences, China; 3Beijing Univ. of Technology, China; 4Beijing Univ. of Posts and Telecommunications, Beijing Insititute of Technology, China. An artificial synaptic transistor device based on ionic gel and graphene has been proposed . The channel carrier concentration is regulated by the stimulation of applied voltage pulse, and the essential synaptic functions are demonstrated .

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T4A.182 Investigation and Optimization of Sidewall Angle Impact for Thin Film Lithium Niobate Grating Couplers, Jiacheng Liu1, Jiangbing Du1, Minni Qu1, Zuyuan He1; 1Shanghai Jiao Tong Univ., China. We investigated the impact of the sidewall angle on the performance of a grating coupler on thin film lithium niobate . The optimization is experimentally validated with a grating coupler fabricated by focus ion beam etching .

T4A.183 Ultra-Broadband Dual-Mode Waveguide Taper Based on an Achromatic Metalens, Zhongqiu Zhong1, Xiaoyuan Guo1, Ke Xu1; 1Harbin Inst. of Technology (Shenzhen), China. An ultra-broadband waveguide taper for TE0 and TE1 modes is designed via achromatic metalenses . The device can operate from 1550 nm to 2150 nm with insertion losses < 1 .25 dB and mode purity > 92% .

T4A.184 Design and Simulation of Photonic Crystal Optomechani- cal Two-Axis Differential Accelerometer, Jiangbo Wu1, Xing Yan1, Changjin Hu1, Dingwei Chen1, Jian Li1, Yongjun Huang1, Guangjun Wen1; 1Univ. of Electronic Science and Tec, China. This paper presents the design and simulation of a new in- plane two-axis differential accelerometer based on the two- dimensional photonic crystal optomechanical cavity structure . The designed accelerometer’s theoretical sensitivity can reach 105 .6 mg/Hz .

T4A.185 Performance of a Pre-Amorphized Traveling-Wave Silicon Optical Modulator, Darpan Mishra1, Manoranjan Minz1, Ramesh K . Sonkar1; 1Electronics and Electrical Engineering, Indian Inst. of Technology Guwahati, India. In this paper, a pre- amorphized silicon traveling-wave Mach-Zehnder modulator is compared with a non-pre-amorphized sample and shown to have 1 .83× greater modulation bandwidth with 1 .66× lower energy-per-bit at 1 .20× higher speed for error-free operation .

T4A.186 High Optical Feedback Tolerance of InAs/GaAs Quantum dot Distributed Feedback Lasers, Zhengqing Ding1, Zhuohui Yang1, Sheng Cao1, Ying Yu1, Siyuan Yu2; 1Sun Yat-sen Univ., China; 2Univ. of Bristol, UK. We investigate the optical feedback sensitivity of GaAs-based quantum dot (QD) distributed-feedback (DFB) diode lasers, which has demonstrated an isolator- free operation under a reflection of up to -16dB . This strong tolerance against the optical feedback suggests the high potential of isolator-free operation in photonic integrated circuits .

T4A.187 Stability Analysis of Generalized Lugiato-Lefever Equation Wied Fith Lumplter for Kerr Soliton Generation in Anoma- lous Dispersion Regime, Nuo Chen1, Boqing Zhang1, Haofan Yang1, Xinda Lu1, Shiqi He1, Yuhang Hu1, Yuntian Chen1, Xinliang Zhang1, Jing Xu1; 1School of optical and electonic imformation, Huazhong Univ. of science and technology, China. We raise a detuning-dependent loss mechanism to describe the Kerr soliton formation dynamics when the lumped filtering operation is manipulated in anomalous group velocity dispersion regime, using stability analysis of Lugiato-Lefever equation .

T4A.188 Effect of High Energy Irradiation on 3 μm Top Silicon Pho- tonic Passive Devices, Yue Zhou1, Lv Dongsheng1, Huang Yi1, Wu Longsheng1, Wang Ruxue1, Li Wenfei1, Bi Dawei1, Aimin Wu1; 1Shanghai Inst. of Microsystem and Information Technol- ogy, China. Optical properties of Mach-Zehnder interferometer and Arrayed Waveguide Grating under 60Co γ-ray and proton irradiation are investigated . Wavelength of MZI blueshifts, and the shift increases with the increasing dose due to an effective refractive index change of 10-4 .

T4A.189 Orbital Angular Momentum Multiplexer Based on the Inverse Designed Multi-Plane Light Conversion, Jingbo Hu1, Juncheng Fang1, Jinpei Li1, Ting Lei1, Xiaocong Yuan1; 1Nanophotonics Research Center, Shenzhen Key Laboratory of Microscale Optical Information Technology & Inst. of Microscale Optoelectronics, Shenzhen Univ., China. We design a orbital angular momentum (OAM) multiplexer based on the inverse designed multi-plane light conversion . We demonstrate the OAM beams from -4 to 4 orders multiplexing/demultiplexing by using the spatial light modulator .

T4A.190 Mid-Infrared Subwavelength Grating Coupler, Weicheng Chen1, Dian Wan1, Jiaqi Wang3, Yi Zou2, Zhenzhou Cheng1, Tiegen Liu1; 1Tianjin Univ., China; 2Shanghai Tech Univ., China; 3Shenzhen Univ., China. We demonstrated a focusing subwavelength grating coupler which has a maximum coupling efficiency of -9 .7 dB at a center wavelength of 2 .47 μm with a 1-dB bandwidth of 60 nm .

T4A.191 Hybrid Integration of Lithium Niobate on Insulator Wave- guide and AlGaInAs Laser, Shuangxing Dai1,2, Yiru Zhao1,2, Mingxuan Li1, Liangchen Sun1,2, Qianqian Jia1,2, Xueyan Han1,2, Jinye Li1, Zhike Zhang1, Jianguo Liu1,2; 1Inst Semiconductor, CAS, China; 2Univ. of Chinese Academy of Sciences, China. We experimentally demonstrate hybrid integration of lithium niobate on insulator (LNOI) waveguide and AlGaInAs laser by edge-coupling with a coupling loss of 4 .8dB . The output power reaches 15mW at 400mA of the packaged device .

T4A.192 Hybrid Integrated Low Residual Noise Optical Phase-Locked Loop, Liwei Tang1, Sigang Yang1, Hongwei Chen1, Minghua Chen1; 1Tsinghua Univ., China. A hybrid integrated optical phase-locked loop is designed based on ultra-low linewidth frequency tunable self-injected semiconductor laser, which achieves loop delay of 30 ps and residual phase noise of -80 dBc/Hz at 100 Hz offset .

T4A.193 Terahertz Polarization Beam Splitter Based on Cascaded Asymmetric Directional Couplers, Wentao Deng1, Liao Chen1, Xiaojun Wu2, Xinliang Zhang1; 1Huazhong Univ. of Science and Technology, China; 2Beihang Univ., China. We demonstrate a terahertz polarization beam splitter based on cascaded asymmetric directional couplers, whose extinction ratios reach up to 20 dB and 32 dB for transverse electric and transverse magnetic modes, respectively .

T4A.194 Ultra-low Loss and Broadband Silicon Photonics 1×2 Multi- mode Interference Splitter Based on Topology Optimization, Youxi Lu1, Beibei Wu1, Ping Jiang1, Heng Zhao1, Rui Cao1, Zu- wen Liu1, Junbo Feng1, Li Jin1; 1United Microelectronics Center Co. Ltd (CUMEC), China. An ultra-low loss and broadband silicon 1×2 splitter was designed by topology optimization method with a minimum measured insertion loss of 0 .03 dB at 1550 nm wavelength and broad operating wavelength range of 1500-1600 nm .

T4A.195 Polarization-Transparent Microphotonic Device Based on Thin-Film Lithium Niobate Platform, Yanmei Lin1, Zhongjin Lin1, Xinlun Cai1; 1State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Informa- tion Technology, Sun Yat-sen Univ., China. A polarization-independent edge coupler and a polarization splitter-rotator are proposed for thin-film lithium niobite platform . The extinction ratio and insertion loss of the proposed O-band polarization splitter-rotator are over 39 dB and near 0 .36 dB, respectively .

T4A.196 High-CMRR Balanced Detection Module Based on Comple- mentary Photodetectors, Tang Yugao1, Bing Xiong1,2, Zhaozhu Li1, Changzheng Sun1,2, Zhibiao Hao1,2, Jian Wang1, Yanjun Han1,2, Hongtao Li1, Yi Luo1,2; 1Department of Electronic En- gineering, Beijing National Research Centre for Information Science and Technology (BNRist), China; 2Tsinghua Univ., Center for Flexible Electronics Technology, China. A balanced photodetector module combined with two complementary photodetectors is proposed and demonstrated . Key factors influencing common-mode rejection ratio are analyzed, and excellent response consistency with CMRR over 30 dB are obtained in DC-18 GHz .

T4A.197 Synchronous-Traveling Carriers Photodetector, Weifang Yuan1, Xiaofeng Duan1, Gongqing Li1, Ke Li1, Yu Li1, Xianjie Li1, Kai Liu1, Yongqing Huang1, Xiaomin Ren1; 1Beijing Univ. of Posts and Telecommunications, China. A synchronous-traveling carriers photodetector with a thick absorption region is presented and investigated . The photodetector structure synchronizes the traveling of electrons and holes, which achieves high bandwidth while maintaining the characteristic of large-responsivity .

T4A.198 Mode Selection in L40 Photonic Crystal Cavities via Spatially Distributed Pumping, Lingfang Wang1, Xiaotian Cheng1, Xia- odong Zhang1, Xing Lin1, Feng Liu1,2, Chaoyuan Jin1,2; 1College of Information Science and Electronic Engineering, Zhejiang Univ., China; 2International Joint Innovation Center, Zhejiang Univ., China. By manipulating the spatially modulated gain profile which overlaps with the distribution of vacuum electromagnetic field inside microcavities, we observed single-mode lasing in L40 PhC cavity with an SMSR of 17 .48 dB via optical injection .

T4A.199 A Hitless and Gridless Wavelength Selective Switch for Versatile Spectral Shapings, Zhengqian He1,2, Zhenzhou Tang1, Cui Yu2, Ang Li1, Shilong Pan1; 1Nanjing Univ Aeronautics & As- tronautics, China; 2Hebei Semiconductor Research Inst., China. A hitless and gridless wavelength selective switch is proposed for versatile spectral shaping, wavelength selective tunable splitting ratio from 100% to 0% and bandwidth tunability from 0 .6 ~ 2 nm are obtained by simulation .

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T4A.200 Multimode Wavelength Division Demultiplexing Based on an Angled Multimode Interference Coupler, Jiapeng LUAN1, Yi Wang1, Zunyue Zhang1, Yaojing Zhang1, Hon Ki Tsang1; 1Department of Electronic Engineering, The Chinese Univ. of Hong Kong, Hong Kong. We designed and experimentally demonstrated an angled multimode interferometer (MMI) for simultaneous wavelength demultiplexing of multiple mode- division multiplexed channels . Wavelength demultiplexing of four-mode channels was experimentally measured .

T4A.201 Scalability and Fabrication Tolerance Analysis of Reconfigu- rable Unitary Optical Converter, Wenyu Zhu1, Wenjia Zhang1, Xin Ye1, Zuyuan He1; 1National Key Research and Development Program of China, China. We carry out numerical analysis and physical simulation of scalability and fabrication tolerance for programmable unitary converter, verifying that MSE of around -20 dB can be achieved for matrix order of 20 and phase-shifter stage of 11 with tolerant fabrication errors .

T4A.202 Design and Fabrication of High-Power Bottom-Emitting 980-nm VCSELs, Weinian Yan1,2, Pingping Qiu1,2, Ming Li1,2, Ruiwen Jia1,2, Qiuhua Wang1,2, lingjuan Zhao1,2, Qiang Kan1,2; 1Inst. of Semiconductors, Chinese Academy of Sciences, China; 2Univ. of Chinese Academy of Sciences, China. In this study, 980-nm high-power bottom-emitting VCSELs are designed and simulated by PICS3D . A single VCSEL device with an active region aperture of 140μm and a peak pulsed power of 106mW@1A is fabricated .

T4A.203 Thermal Tuning Algorithm of a Single Microring Resonator Based on Neural Network, Xiangyu He1, Weigang Hou1, Weijie Qiu1, Sijing Yu1, Pengxing Guo1, Lei Guo1; 1School of Communication and Information Engineering, Chongqing Univ. of Posts and Telecommunications, China. We propose a thermal tuning algorithm of a Single Microring Resonator (SMR) based on Neural Network (NN) to quickly control the heater voltage to compensate the resonant wavelength shift with a satisfied accuracy .

T4A.204 Widely Tunable 1.3 μm InGaAlAs/InP DBR Laser, Xuyuan Zhu1, Xiaobo La1, Jing Guo1, Song Liang1; 1Inst. of semiconductors, CAS, China. 1 .3 µm DBR laser having InGaAlAs gain material and butt-jointed InGaAsP DBR material is reported . The laser has an over 16 nm wavelength tuning range induced by self heating effect of the DBR section .

T4A.205 Silicon-Graphene Heterojunction Waveguide Photodetector With a 3dB-Bandwidth of >14 GHz, Chaoyue Liu1, Jingshu Guo1, Laiwen Yu1, Yuluan Xiang1, Daoxin Dai1; 1Zhejiang Univ., China. We propose and demonstrate a silicon-graphene heterojunction photodetector with a 100-nm-thick silicon core . The measured 3-dB bandwidth of >14 GHz at 1570 nm and the normalized photocurrent-to-dark-current ratio (NPDR) of 340 mW-1 are obtained .

T4A.206 Directly Modulated ADR-DFB Laser Integrated With Easy-to- Fabricate Spot Size Converter, Yuanhao Zhang1, Fan Yang1, Gonghai Liu1, Qiaoyin Lu1, Weihua Guo1; 1HuazhongUniv. of Science&Technology, China. Directly modulated active- distributed-reflector distributed feedback (ADR-DFB) laser integrated with an easy-to-fabricate spot size converter (SSC) is demonstrated, which realizes 3-dB modulation bandwidth ~19 GHz and nearly spherical mode spot .

T4A.207 Mode and Wavelength Hybrid Multiplexer Enabled by Multi-Plane Light Conversion, Aru Kong1, Ting Lei1, Xiaocong Yuan1; 1Shenzhen Univ., China. We propose, design and experimentally demonstrate a hybrid multiplexer using multi-plane light conversion, which can simultaneously achieve 16 mode and wavelength channels multiplexing with 4 linear polarized modes at 4 wavelengths across the O band .

T4A.208 Enhanced Light Extraction by Surface Structure Inverse De- sign Based on Intelligence Algorithm for DUV-LEDs, Zizheng Li1, Yifan Zhu1, Huimin Lu1, Tongjun Yu2, Jianping Wang1; 1Univ. of Science&Technology Beijing, China; 2Peking Univ., China. An intelligence algorithm is applied to boost the inverse design of the sapphire surface structure of the DUV-LEDs . The parabola cone array structure is proposed and designed to enhance the light extraction efficiency by 141 .6% .

T4A.209 High Power DFB Laser Integrated With Laterally Tapered SSC in Revers Mesa Shape, Xiaobo La1,2, Xuyuan Zhu1,2, Jing Guo1,2, Song Liang1,2; 1Key Laboratory of Semiconductor Materi- als Science, Institue of semiconductors, CAS, China; 2Center of Materials Science and Optoelectronics Engineering, Univ. of Chinese Academy of Sciences, China. A high power1290 nm distributed feedback (DFB) laser integrated with spot size converter (SSC) is reported . The far-field divergence angles are 9 ° and 10 ° in the lateral and vertical directions .

T4A.210 Flat-Top Passband Optical Filters on Lithium Niobate on Insulator (LNOI), Heyun Tan1, Hao Li1, Yuntao Zhu1, Xinlun Cai1; 1Sun Yat-sen Univ., China. We simulate and fabricate multi-phase-shifted Bragg gratings to realize flat-top passband filters on LNOI . The 1dB-bandwidth of the fabricated devices is 0 .16 ~ 2 .49 nm while the maximum extinction ratio is ~ 30 dB .

T4A.211 Digital Electro-Optical Latch Based on Dual-DFB Semicon- ductor Laser, Qi Tian1, Yu Han1, Sikang Yang1, Jing Luan1, Ruigang Zhang1, Pengxiang He1, Deming Liu1, Minming Zhang1; 1Huazhong Univ. of Science and Technology, China. Digital electro-optical latch can cache the signal by temporar- ily maintaining a certain output state . We present a dual-DFB semiconductor laser with two DFB sections and identical MQW active layer which can realize the latch function .

T4A.212 Wavelength Locking of Multi-Channel Interference Widely Tunable Laser, Zifeng Chen1, Kuankuan Wang1, Chun Jiang1, Quanan Chen1, Qiaoyin Lu1, Weihua Guo1; 1Huazhong Univ. of S&T, China. Wavelength locking of a widely tunable multi- channel interference laser is demonstrated for the first time, over a temperature variation range of 4 .6°C if both the longitudinal mode and the reflection peak are locked simultaneously .

T4A.213 High-Efficiency Fiber-Chip Edge Coupler Design for Visible Light on Alumina-on-Insulator Photonics, Yuhan Du1, He Yu1, Zhen Wang1, Yong Zhang1, Weiqiang Xie1, Yikai Su1; 1Shanghai Jiao Tong Univ., China. We propose a fiber-chip edge coupler at the wavelength from 405 nm to 500 nm based on the alumina optical waveguides . Simulation result shows lower than 1 .6 dB insertion loss for the TE-polarized light .

T4A.214 All-Optical Phase-Preserving Amplitude Regeneration Through Optical Phase Conjugation in a Polarization- Selected Orthogonal-Pumped SOA Subsystem, fan sun1, Feng Wen1, Bao-Jian Wu1, Feng Fan2, Yun Ling1, Kun Qiu1; 1Univ. of Electronic Science and Tec, China; 2Beijing Research Inst. of Telemetry, China. We experimentally investigate the phase-preserving amplitude regeneration based on the optical phase conjugation process in a polarization-selected orthogonal-pump semiconductor optical amplifier (PSOP-SOA) subsystem, enabling the signal-to-noise ratio (SNR) improvement of 1 .84dB for QPSK signals .

T4A.215 Ultrafast and Energy-Efficient Electro-Optic Modulation Based on a Hybrid Silicon/in2O3 Cavity, Yishu Huang1, Bingcheng Pan1, Lijia Song1, Zejie Yu1, Daoxin Dai1,2; 1Zhejiang Univ., China; 2Ningbo Research Inst., Zhejiang Univ., China. A high-performance hybrid silicon/In2O3 modulator is proposed, exhibiting a modulation bandwidth of >120 GHz, an excess loss of 3 .9 dB, an extinction ratio of 14 .9 dB in theory . The minimum energy consumption is about 2 .5 fJ/bit .

T4A.216 On-Chip Polarimeter via Inverse Design, Youpeng Xie1, Changyu Zhou1, Zepeng Wei1, Zhenwei Xie1, Ting Lei1, Xiao- cong Yuan1; 1Shenzhen Univ., China. We propose a polarimeter with four ports via inverse design . The device is fabricated on a SOI . We use the polarimeter to retrieve Stokes parameters and achieve high-speed Stokes vector direct detection .

T4A.217 MUTC-PD With Enhanced D-Band Response by Shunt Ca- pacitors on Submount, Yuxin Tian1, Bing Xiong1, Changzheng Sun1, Zhibiao Hao1, Jian Wang1, Lai Wang1, Yanjun Han1,2, Hongtao Li1, Yi Luo1,2; 1Beijing National Research Centre for Information Science and Technology (BNRist), Department of Electronic Engineering, China; 2Flexible Intelligent Opto- electronic Device and Technology Center, Inst. of Flexible Electronics Technology of THU, China. Submounts with shunt capacitors are proposed to improve the RF power of flip-chip bonded photodiodes, demonstrating output power enhancement of 65% at 148 GHz, and flattened frequency response in F- and D-bands .

T4A.218 All Solid-State Lidar Based on Lens Assisted Beam Steer- ing and Frequency-Modulated Continuous Wave Ranging, Xianyi Cao1, Kan Wu1, Chao Li1, JiaXuan Long1, Guangjin Zhang1, Jianping Chen1; 1Shanghai Jiao Tong Univ., China. A Lidar system based on lens assisted integrated two-dimension beam steering at 1550 nm is utilized in frequency-modulated continuous wave ranging . This Lidar system has 4×4 scanning directions and 80 m ranging distance .

T4A.219 Multimode Waveguide Grating Couplers for Mode Division Multiplexing in Multi-Mode Fibers, Xuetong Zhou1, Hon Ki Tsang1; 1The Chinese Univ. of Hong Kong, China. We describe a novel and highly efficient multimode waveguide grating coupler which can simultaneously and selectively launch three mode channels (LP01, LP11 and LP12) in a graded-index multimode fiber (MMF) .

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T4A.220 Trap Characterization of InGaN/GaN Blue Light Emitting Diode Grown on Si Substrate, Jiaxiang Chen1, Haolan Qu1, Longheng Qi2, Yaying Liu2, Xu Zhang2, Kei M . Lau2, xinbo zou1; 1ShanghaiTech Univ., China; 2Hong Kong Univ. of Science & Technology, China. Three hole traps and one electron trap were revealed for InGaN/GaN blue LEDs grown on Si by a combination of DLTS and ICTS . Time-resolved thermal-enhanced emission process of deep hole trap was investigated .

T4A.221 An Inverse Design Method With Structure Transformation Technique for Designing Fabrication-Friendly Devices, YuChen Chen1, Jifang Qiu1, Zhenli Dong1, Hongxiang Guo1, Jian Wu1; 1School of Electronic Engineering, Beijing Univ. of Posts and Telecommunications, China. Considering device fabrication, we propose an optimization technique to transform structures of inverse-designed devices to be of simpler topologies, and using this technique a 1×3 power splitter with fabrication-friendly structures and better performance is demonstrated .

T4A.222 Tunable Acousto-Optic Filter Based on Suspended Lithium Niobate Waveguides, Bingcheng Pan1, Huan Li1, Daoxin Dai1,2; 1Zhejiang Univ., China; 2Ningbo Research Inst., Zhejiang Univ., China. Based on suspended lithium niobate waveguides on LNOI platform, a novel tunable acousto-optic filter is proposed, featuring an ultrawide continuous tuning range of 1 .2–2 μm, with a fixed bandwidth of ~10–20 nm .

T4A.223 Ultra-Wide Bandwidth Thin Film Lithium Niobate Modulator With Benzocyclobutene (BCB) Bottom Cladding and Low- Loss Buried Edge Couplers, Hao Liu1, Xuecheng Liu1, Bing Xiong1, Changzheng Sun1, Zhibiao Hao1, Lai Wang1, Jian Wang1, Yanjun Han1, Hongtao Li1, Jiadong Yu1, Yi Luo1; 1Tsinghua Univ., China. A novel thin-film lithium niobate modulator is proposed . Half-wave voltage of 1 .9 V and bandwidth of 300 GHz can be obtained, together with buried edge couplers exhibiting low coupling loss of 0 .27 dB/facet .

T4A.224 Enhanced Absorption of Ge Nanostripe Arrays in the Near- Infrared Band, Yijin Zhang1, Xiyuan Cao1, Yi Jin2, Aimin Wu1; 1SIMIT，CAS, China; 2Department of optoelectronic information engineering, Zhejiang Univ., Hangzhou, P.R. China, China. We propose a Ge nanostripe array to realize strong absorption in the near-infrared band . The maximum absorption is approximately 95% around 1310 nm for TE-polarized incidence, which is increased by 4 times compared to the unstructured planar structure with the same thickness . The experimental result verifies the simulated prediction consistently .

T4A.225 Scalable and Compact Silicon Mode Multiplexer via Tilt Waveguide Junctions With Shallow Etched Slots, Xiaoyuan Guo1, Yingjie Liu1, Zhongqiu Zhong1, Jiangbing Du2, Ke Xu1; 1Harbin Inst. of Technology (Shenzhen), China; 2Shanghai Jiao Tong Univ., China. A scalable mode (de)multiplexer is proposed using tilt waveguide junctions with shallow-etched slots . The designed four-mode (de)multiplexer with a 50×2 μm2 footprint has <0 .7 dB insertion loss and < −17 .7 dB crosstalk at 1550 nm .

T4A.226 Inverse Design of a CMOS-Compatible Dual-Mode 3 dB Power Splitter at O-Band, Xin Fu1, Shanglin Yang1, Jiaqi Niu1, Gaolu Zhang1, Lin Yang1; 1CAS Inst. of Semiconductors, China. We propose a compact dual-mode 3 dB power splitter at O- band which is compatible with CMOS process . Gradient-based inverse design with level set method is utilized to optimize the device .

T4A.227 2-μm High-Speed Large-Photocurrent Photodetection Based on the Two-Photon Absorption From a Commercial 1.55-μm Fabry-Perot Laser Diode, Zhiming Shi1, Di Ji1, Zhitao Hu1, Nan Ye1, Fufei Pang1, Yingxiong Song1; 1Shanghai Univ., China. With the two-photon absorption enhanced by the internal Fabry-Perot resonator, a 2-µm wavelength 250 MHz sinusoidally-modulated optical signal is detected by a commercial 1 .55-μm multi-quantum well laser diode with the photocurrent up to 20 .59 µA .

T4A.228 Thermal Analysis and Hybrid Packaging Design of SOI Based All Optical Signal Processing Chip, Kunpeng Zhai1,2, Ya Jin1, Yin Fang Chen1, Shaokang Chen1, Xin Wang1, Huashun Wen1, Ninghua Zhu1; 1State Key Laboratory of Integrated Optoelec- tronics, Inst. of Semiconductors, Chinese Academy of Sciences, China; 2College of Materials Science and Opto-Electronic Technology, Univ. of Chinese Academy of Sciences, China. The thermal analysis of silicon based all-optical processing chip and a novel packaging structure are reported . We simulated thermal crosstalk between the waveguides, then manufactured packaging structure to make the chip work at room temperature .

T4A.229 Compact Switchable Polarization Beam Splitter Using Phase Change Material Incorporated Silicon Nitride Waveguide, Bishal Bhandari1,2, Sang S . Lee1,2; 1Department of Electronic Engineering, Kwangwoon Univ., Korea; 2Nano Device Applica- tion Center, Kwangwoon Univ., Korea. A compact silicon nitride polarization beam splitter with a length of 57-µm achieving high extinction ratio is presented . It also incorporates phase change material, which allows us to switch it on and off .

T4A.230 Aspheric and Spherical Concave Micro-Mirror for Vertical Optical Coupling, Tingyun Wang1, Fang Zhang1, Huang Yi1, Xiaobei Zhang1, Deng Chuanlu1, Ruhuan Zhang1; 1Shanghai Univ., China. The aspheric and spherical concave micro-mirrors are designed by ray-tracing simulation at the end of a rectangular polymer waveguide for vertical coupling . The results indicate that the loss of hyperboloidal micro-mirror is 0 .8 dB .

T4A.231 A Novel High-Speed Dual-Absorption Photodetector With Microstructure, Jiawei Du1, Yongqing Huang1, Ren Ren1, Xiaofeng Duan1, Kai Liu1, Yisu Yang1, Xiaomin Ren1; 1BUPT, China. A dual-absorption photodetector with a cylindrical hole in the top photodiode is proposed . Compared with the traditional mesa-structure dual-absorption photodetector, the novel photodetector can increase the 3dB bandwidth by 37 .7% with responsivity of 0 .642 A/W .

T4A.232 Miniaturized Spectrometer Based on Morphologically Reconstructed Photonic Crystal Fabricated by Nanoreplica Molding, Wen Miao1, Jihai Yan1, Chenwei Huang1, Yuhang Wan1, Zheng Zheng1; 1Beihang Univ., China. A spectral recon- structive system based on a spatially stretched photonic crystal made of UV-curable polymer fabricated through nanoreplica molding, with a reconstruction algorithm based on K-SVD for spectral reconstruction is proposed and experimental demonstrated .

T4A.233 Compact Silicon Mode Converter Using Fast Adiabatic- Evolution-Based Y-Junction With Wide Bandwidth, Yichen Xu1, He Yu1, Zhen Wang1, Yong Zhang1, Weiqiang Xie1, Yikai Su1; 1Shanghai Jiao Tong Univ., China. A broadband mode converter based on an asymmetric Y-junction is proposed and experimentally demonstrated . The device has a compact evolution length (<12 μm) and a wide bandwidth .

T4A.234 Machine Learning Assisted Microwave Photonic Filtering Interrogation for Displacement Sensing, Xiuwen Zhang1, Di Zheng1, Chengming Luo1, Xihua Zou1; 1Southwest Jiaotong Univ., China. A powerful machine learning tool Gaussian Pro- cess Regression (GPR) is introduced into microwave photonic filtering interrogation for displacement sensing with improved demodulation speed and accuracy .

T4A.235 A Dual-Sideband Frequency-Modulated Continuous-Wave Lidar for Simultaneous Measurement of Velocity and Dis- tance, Jingyou Su1, Yunshan Zhang2, Jilin Zheng3, Shijian Guan1, Lianyan Li2, Tao Fang1, Xiangfei Chen1; 1Nanjing Univ., China; 2Nanjing Univ. of Posts and Telecommunications, China; 3PLA Univ. of Science and Technology, China. We proposed a dual- sideband frequency-modulated continuous-wave lidar system for simultaneous velocimetry and ranging . When velocity is 0 .1m/s and distance is 10m, the measured relative errors of velocity and distance are 0 .14% and 2 .2% respectively .

T4A.236 Physical-Layer Secure Key Generation and Distribution by Estimating Phase Noise of Optical Fiber Link, Danyang Wang1, Hongxiang Wang1, Yuefeng Ji1; 1Beijing Univ. of Posts and Telecomm, China. A secure key generation and distribution shared between the legal partners is proposed in this paper, where an error-free key generation rate of 0 .95Gbit/s is successfully demonstrated by simulation over 100km Optical Fiber Link .

T4A.237 Multi-Octave Linearized Analog Photonic Link Based on Par- allel MZMs and Digital Demodulating, Yiran Gao1, Zhonghan Wu1, Jingyue Chen1, Tian Zhang1, Jian Dai1, Kun Xu1; 1Beijing Univ of Posts & Telecom, China. A multi-octave linearized analog photonic link is proposed and experimentally verified . The SFDR3 and SFDR2 are measured to be 127 dB-Hz4/5 and 103 .7 dB-Hz1/2, respectively .

T4A.238 A Fast Cross-Correlation Method for Temperature Extrac- tion in BOTDR Sensors, Lianghao Su1, Bei Chen1, Xiaozhi Liu1, Zhiyan Zhou1, Muping Song1, Yuehai Wang1, Jianyi Yang1; 1College of Information Science and Electronic Engineering, zhejiang Univ., China. We propose a fast cross-correlation Bril- louin frequency shift extraction algorithm for BOTDR sensors to realize temperature detection in real-time . Compared to conventional method, our method has much shorter processing time with comparable accuracy .

T4A.239 Linear Optical Sampling Enabled Eigenvalue Analysis of Fi- ber Laser Radiation, Yu Zhe1, Yutian Wang1, Huan He1, Zhichao Wu2, Deming Liu1, Lumin Zhao1, Songnian Fu3; 1Huazhong Univ of Science and Technology, China; 2China Univ. of Geosciences, China; 3Guangdong Univ. of Technology, China. Linear optical sampling is proposed to obtain the full-field information of ultrafast laser pulse and nonlinear Fourier transform is applied to calculate its eigenvalues, providing an alternative solution for eigenvalue analysis of fiber laser radiation .

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T4A.240 A Frequency-Tunable Coupled Optoelectronic Oscillator, He- fei Qi1, Dan Lu1, Lingjuan Zhao1; 1Inst. of Semiconductors,CAS, China. A low-phase-noise frequency tunable coupled optoelectronic oscillator is demonstrated . Microwave signal tunable from 8 GHz to 21 GHz with signal-sideband phase noise below −123 dBc/Hz at a 10-kHz offset from the carrier frequency is demonstrated .

T4A.241 Analog Bandwidth Optimization in Photonic Sampling Sys- tem Based on Cavity-Less Optical Pulse Source, Zhengkai Li1, Ying Xu1, YuTong He1, Weiqiang Lv1, Zhenwei Fu1, Zhiyao Zhang1, Shangjian Zhang1, Heping Li1, Yong Liu1; 1Univ of Electronic Science & Tech China, China. We demonstrate an approach to optimize the analog bandwidth of a photonic sampling system based on cavity-less optical pulse source . In the experiment, the 3-dB analog bandwidth constrained by the optical source is increased from multi-GHz to 35 GHz .

T4A.242 Dual-Mode FMF to SOI Chip Edge Coupler, Weilun Zhang1,2, Mengyuan Ye1,2, Yunlong Li1,2; 1China Univ. of Geosciences, China; 2Hubei key Laboratory of Advanced Control and Intel- ligent Automation for Complex Systems, China. Dual-mode edge coupler for few mode fiber (FMF) to silicon chip is proposed . LP01 and LP11 modes could be efficiently coupled into TE0 and TE1 modes in waveguides via the proposed coupler in simulation .

T4A.243 An ENOB-Enhancement Scheme for an OADC Based on a Phase-Shifted Quantizer, Ran Tao1, Jifang Qiu1, Chang Liu1, Bowen Zhang1, Jian Wu1; 1Beijing Univ of Posts & Telecom, China. A novel scheme is proposed to enhance the ENOB of an OADC based on a phase-shifted quantizer by 1 bit . The operation principle has been derived . An OADC based on this scheme was designed and simulated, achieved 4 .31 bit ENOB .

T4A.244 An Energy-Efficient Non-Volatile Silicon Photonic Accel- erator for Convolutional Neural Networks (NVSP-CNNs), Zhiyuan Liu1, Pengxing Guo1, Peng Zhao1, Weigang Hou1, Lei Guo1; 1CQUPT, China. In this paper, we propose a nonvolatile silicon photonic (NVSP) CNN accelerator architecture . Simulation results demonstrate that compared with traditional photonic CNN accelerator DEAP-CNN, our architecture can reduce the power loss by 29 .47% .

T4A.245 Low Timing Jitter (58 fs) 20-GHz Hybrid Mode-Locked La- sers Diodes, Qiulu Yang1; 1Inst. of Semiconductors, Chinese Aca, China. We report a hybrid mode-locked AlGaInAs/InP semiconductor laser with repetition frequency of 20 GHz, transform-limited pulse width of 1 .9 ps and timing jitter of 58 fs (integrated from 1 kHz to 10 MHz) .

T4A.246 Simulation of a Wideband Frequency Measurement System Using Parallel Photonic sub-Nyquist Sampling and Binary Deduction., Sreeraj S J1, Karamdeep Singh1, Deepa Venkitesh1, Balaji Srinivasan1, Christopher S1; 1IIT Madras, India. A novel photonic sub-Nyquist based wideband frequency measurement system based on a pulsed laser, a set of interleavers and a binary deduction algorithm is proposed and verified with simulations

T4A.247 Silicon Vestigial Sideband Transmitter for Compensation of Dispersion-Induced Power Fading in if-Over-Fiber Link, Fengwei Liu1, Xihua Zou1, Peixuan Li1; 1Southwest Jiaotong Univ., China. A silicon vestigial sideband transmitter consisting of a Mach-Zender modulator and a micro-ring resonator is designed for compensating dispersion-induced power fading in IF-over-fiber mobile fronthaul . It enables a transmission of a 10-Gbaud 16-QAM OFDM signal over 80-km fiber .

T4A.248 Generation of Tunable Frequency-Doubling Microwave Sig- nals at 2 µm Wavelength Band, Di Ji1, Zhitao Hu1, Lele Sun1, Nan Ye1, Fufei Pang1, Yingxiong Song1; 1Shanghai Univ., China. 7~12 GHz tunable frequency-doubling microwave signals are generated at 2 µm using a Mach-Zehnder Modulator and Indium-rich InGaAs photodetector . Higher microwave power can be achieved than the similar setup built at the C-band .

T4A.249 Low-Dissipated Power Design for the Optical Blass Matrix Architecture, Yang Li1, Xiaoyu Wang1, Xianlin Huang1, Xihua Zou1, Wei Pan1, Lianshan Yan1; 1Southwest Jiaotong Univ., China. A low-dissipated power design is proposed for the optical Blass matrix architecture . The wasted dissipation power is reduced to the Extinction Ratio (ER) level, which means a 99 .63% decrease compared with the existing method .

T4A.250 Photonic Phase Shifter of Phase-Coded Microwave Signal With Programmabilities, Yunxia Xin1; 1North China Univ. of Water Resource, China. We propose a photonic scheme to generate a programmable frequency phase-coded microwave signal based on a photonic phase shifter . The experimental results implement 30 GHz signal with the coding rate of 3 Gb/s .

T4A.251 Microwave Multi-Frequency Measurement Based on a MZI and an Optical Wavelength Scanner, Bing Lu1, Keji Zhu1, Xianglei Yan2, Long Zhu1, Mingliang Deng1, Andong Wang1, Huanlin Liu1; 1School of Communication and Information En- gineering, Chongqing Univ. of Posts and Telecommunications, China; 2School of Communication and Information Engineering, Southwest Jiaotong Univ., China. A novel multi-frequency measurement approach based on a Mach-Zehnder interferometer (MZI) and an optical wavelength scanner is proposed . Multi- frequency measurement with an accuracy of 30 MHz is obtained through simulation within the range of 0~19 GHz .

T4A.252 The Radial Phase Modulation of Concentric Uniform Circular Array to Alleviate the Diffusion of OAM Beams, Jingcan Ma1, Xiyao Song1, Yuchen Yao1, Zhennan Zheng1, Xinlu Gao1, Shanguo Huang1; 1State Key Laboratory of Information Pho- tonics and Optical Communications, Beijing Univ. of Post and Telecommunications, China. The radial phase modulation of concentric uniform circular array scheme is proposed to alleviate the diffusion of orbital angular momentum (OAM) beams . Numerical results show that this scheme is effective in reducing the diffusion effect .

T4A.253 Optical Reservoir-Based Noise Compensation in a Space Division Multiplexing Transmission System, Yinke Yang1, Feng Wen1, Tianfeng Zhao1, Feng Yang2, Bao-Jian Wu1, Kun Qiu1; 1UESTC, China; 2Marolabs Co., Ltd, China. We propose a nonlinear-optical loop mirror (NOLM)-based reservoir computing scheme to perform the noise compensation for a space- division multiplexing (SDM) transmission system, achieving the maximum Q2 of the recovered signal up to 65 .52dB .

T4A.254 High Q Silicon Micro-Ring Resonator Based on Elliptical Bending Waveguides, Yunlong Li1,2, Mengyuan Ye1,2, Weilun Zhang1,2; 1School of Automation, China Univ. of Geosciences, China; 2Hubei Key Laboratory of Advanced Control and Intel- ligent Automation for Complex Systems, China. By adopting elliptical bending waveguides, a silicon micro-ring resonator with footprint ~ 440 μm and Q factor ~ 6 .2×106 is proposed and demonstrated .

T4A.255 Broadband, Filterless Microwave Photonic Image-Reject Mixer Based on Balanced Photodetectors, Sijia Liu1,2, Xin Wang1,2, Decai Zhu1,2, Yongfeng Wei1,2, Daoerji Fan1,2, Caili Gong1,2; 1Inner Mongolia Univ., China; 2Department of Electron- ic Information Engineering, Inner Mongolia Univ., Mongolia. A filterless microwave photonic image-reject mixer based on balanced photodetectors is proposed . The results show that spur suppression ratio is above 63 .9dB from 10 to 40GHz and maximum image rejection ratio is 54 .4dB .

T4A.256 A Nonuniform Quantization Scheme Based on Optical Phase-Shifted Devices, Feifan Hu1, Meihua Bi1,2, Hangyong Xu1, Xin Miao2, Weisheng Hu2; 1School of Communication Engineering, Hangzhou Dianzi Univ., China; 2State Key Laboratory of Advanced Optical Communication System and Networks, Shanghai Jiao Tong Univ., China. We firstly present a nonuniform quantization scheme based on phase-shifted devices used in photonic ADC, which can be used to process the unevenly distributed sampling signals . And, its feasibility is verified by simulation .

T4A.257 An Integrated Wireless Communication and Sensing System at U-Band Based on Heterodyne Detection, Mingzheng Lei1, Aijie Li1, Jiao Zhang1,2, Bingchang Hua1, Yuancheng Cai1,2, Yucong Zou1, Weiliang Xu2, Min Zhu1,2; 1Purple Mountain Labo- ratories, China; 2National Mobile Communications Research Laboratory, Southeast Univ., China. We propose an integrated wireless communication and radar sensing system enabled by photonics . The proposed system simultaneously achieves a 10-Gbit/s wireless transmission rate and the Range-Doppler decoupling at U-band based on optical heterodyne detection .

T4A.258 Optical Reservoir-Based Noise Compensation in a Space Division Multiplexing Transmission System, Yinke Yang1, Feng Wen1, Tianfeng Zhao1, Feng Yang2, Bao-Jian Wu1, Kun Qiu1; 1UESTC, China; 2Marolabs Co., Ltd., China. We propose a nonlinear-optical loop mirror (NOLM)-based reservoir computing scheme to perform the noise compensation for a space- division multiplexing (SDM) transmission system, achieving the maximum Q2 of the recovered signal up to 65 .52dB .

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T4A.259 Measurement of Instantaneous Frequency in Channelized Receiver Based on OFC, Xin Wang1, Daoerji Fan1, Caili Gong1, Shilong Zhang1, Ximin Wang1, Yingxi Miao1, Yongfeng Wei1; 1Department of Electronic Information Engineering, Inner Mongolia Univ., China. A novel measurement of instantaneous frequency in channelized receiver based on OFC is proposed and demonstrated . The result shows that the microwave frequencies within dozens of gigahertz can be measured .

T4A.260 Arbitrary Waveform Generation Technology Based on Dual- Polarization Dual-Drive Mach-Zehnder Modulator, Ruirui Gao1, Jingjing Hu2, Jian Li1, Jiali Zhang1, Qianxue Liu1, Xiaozhou Li1, Xiuyou Han1, Mingshan Zhao1, yiying Gu1; 1School of Op- toelectronic Engineering and Instrumentation Science, Dalian Univ. of Technology, China; 2School of Physics, Dalian Univ. of Technology, China. An arbitrary waveform generator based on a dual-polarization dual-drive Mach-Zehnder modulator (Dpol- DDMZM) is proposed, which is verified by theoretical analysis and simulation using OptiSystem demo, 8GHz sawtooth pulse trains are experimentally demonstrated .

T4A.261 Laser Stripe Centerline Extraction With Large Width Varia- tion, Yu Chen1, Yue Zhou1; 1Beijing Univ. of Posts and telecomm, China. We propose an algorithm for extracting the center of the light fringe which can adapt to different width changes .In this algorithm, the skeleton of the light stripe is obtained by skeleton thinning, and the light stripe with nearly equal width is obtained by Bazen method .Finally,the Steger algorithm is used to extract the light stripes accurately .

T4A.262 Research on Reducing Divergence of Vortex Beams Based on Generalized Refraction Law, Yuchen Yao1, Jingcan Ma1, Xiyao Song1, Zhennan Zheng1, Xinlu Gao1, Shanguo Huang1; 1Beijing Univer. of Posts &Telecommun., China. A method is proposed to reduce the divergence angle of vortex beams

T4A.264 Multi-User Multi-Channel BCG Signal Acquisition and De- modulation System Using Flexible Interferometric Sensor, Wei Xu1,4, Wenye Sun3, Bo Dong2, Na Zhang5, Changyuan Yu7, Cheungchuen Yu6; 1Xi’an Inst. of Optics and Precision Mechan- ics, China; 2Shenzhen Technology Univ., China; 3The Second Affiliated Hospital of Soochow Univ., China; 4Univ. of Chinese Academy of Sciences, China; 5Anlight Optoelectronic Technol- ogy Inc., China; 6Haina-Intelligent Photonic System Research Center, Yangtze Delta Region Inst. of Tsinghua Univ., China; 7The Hong Kong Polytechnic Univ., China. In this paper, a multiuser multi-channel ballistocardiogram (BCG) signal acquisition and demodulation system is presented and investigated in sit- ting posture, using flexible and solid fiber-based interferometric sensor through silica gel molding process .

T4A.265 Design of a Dual-Wavelength Photoelectric Test System for Intraoperative Accurate Identification of Ureter, Fan L . Lin1, Jinlong Zhang2; 1Beijing Univ. of Posts and Telecommunications, China; 2Henan Univ., China. Aiming at the problem of misjudg- ment of the ureter in the operation, a dual-wavelength photoelectric test system based on Lambert-Beer law and Monte Carlo method was designed to accurately identify the ureter .

T4A.266 Anisotropic Edge Enhancement Based on an Exponential Phase Airy Spiral Phase Filter, Yutao Wang1, Yongjun Wang1, Chao Li1, Jingwen Liu1; 1Beijing Univ Posts & Telecommunica- tions, China. An anisotropic Airy spiral phase filter with exponential phase is proposed . The simulation results prove that the proposed filter achieves higher-contrast edge enhancement with controllable direction and range of enhancement .

T4A.267 Design and Simulation of Nano Scale Plasmonic Temperature Sensor Using Ethanol-Filled Rectangular Cavity Equipped With Polygonal Patches, Babak Moeinimaleki1, Hassan Kaatuzian1, Abdolber Mallah Livani1; 1Electrical Engineering

T4A.268 Nitric Oxide Release Activated Near-Infrared Photothermal Agent for Synergistic Tumor Treatment, Yunjian Xu2, Shiqi Wang1, Zhenjiang Chen1, Rui Hu1, Yihua Zhao1, Kexin Wang1, Junle Qu1, Liwei Liu1; 2Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province & Ministry of Education, College of Physics and Optoelectronic Engineer- ing, Shenzhen Univ., China. An activatable multifunctional platform with photothermal conversion “turn on” features via nitric oxide release for synergistic gas therapy and photothermal therapy under multimodal biological imaging was rationally designed using an aryl N-nitrosamine functionalized aza-BODIPY framework .

T4A.269 A Compact Dual-Dispersion Architecture for Snapshot Compressive Spectral Imaging, Zhengxiang Zhao1, Ziyi Meng1, Zhenyu Ju1, Zhenming Yu1, Kun Xu1; 1Beijing Univ. of Posts and Telecomm, China. We propose a dual-dispersion architecture based on reflection for snapshot compressive spectral imaging, which is compact and low cost . It also shows good spatial and spectral recovery performance based on optimization algorithms .

T4A.270 Monitoring of Flying Horticulture Pest Insects Using a Bi- Static Lidar System, Jiawen Huang1,2, Jianbin Chi1,2, Qifeng Wu4, Sune Svanberg1,3, Dunsong Li4, Ziwei Song4, Shiming Zhu1,2; 1National Center for International Research on Green Optoelectronics, South China Normal Univ., China; 2Guang- dong Provincial Key Laboratory of Optical Information Materials and Technology & Center for Optical and Electromagnetic Research, South China Academy of Advanced Optoelectron- ics, South China Normal Univ., China; 3Department of Physics, Lund Univ., Sweden; 4Guangdong Provincial Key Laboratory of High Technology for Plant Protection/Plant Protection Research Inst., Guangdong Academy of Agricultural Sciences, China. A CW 980 nm bi-static lidar system based on the Scheimpflug principle and capable of resolving wing-beats was used to

T4A.272 C-Band Seven-Core Erbium Doped Fiber Amplifier, Zhimu Gu1, Qiang Qiu1, Le He1, Yingbo Chu1, Jinyan Li1; 1Huazhong Univ. of Science and Technology, China. A seven-core erbium doped fiber amplifier is developed and the gain and noise properties have been studied . The average gain across C-band is 20dB and the noise figure is less than 6dB .

T4A.273 Merging Engine Implementation With Co-Existence of Independent Dynamic Bandwidth Allocation Algorithms in Virtual Passive Optical Networks, Gulmina Malik2, Akhlaque Ahmad1, Arsalan Ahmad2; 1Habib Univ., Pakistan; 2National Univ. of Sciences and Technology, Pakistan. We implement the co-existence of independent DBA algorithms at OLT shar- ing the PON upstream capacity . Results indicate that service performance, in terms of packet loss and delay, is affected by operator’s choice of DBA .

T4A.274 Reconfigurable All-Optical Binary Pattern Matching for OOK and BPSK Modulation Formats, Zicheng Shi1, Xin Li1, Ying Tang1, Shanguo Huang1; 1Beijing Univ. of Posts and Telecomm, China. A reconfigurable all-optical binary pattern matching system is proposed . It can recognize target sequences in OOK and BPSK modulation formats of 4 and 8 bits in length, with a matching rate of 100Gbps .

T4A.275 Compact Athermal Silicon Mach-Zehnder Interferometer Based on bi-Level Taper, Yingxuan Zhao1, Haiyang Huang1, Qiu Chao1, Zhen Sheng1, Fuwan Gan1; 1SIMIT, China. We present a novel compact and temperature insensitive Mach-Zehnder interferometer based on bi-level taper and a multimode waveguide . The wavelength thermal dependence of the device is around 15pm/°C in the wavelength range of 50nm .

based on the generalized refraction law . Simulation results show that this method can efficiently weaken the divergence angle of vortex beams .

T4A.263 Constellation Diagram Analyzer Based on Few Shot Learn- ing, Hanyu Zhang1, Di Zhang1, Yan L . Xue1; 1East China Normal Univ., China. A constellation analyzer based on few shot learning is proposed, which can be used for OSNR estimation and modulation format recognition . 100% accuracy is achieved for modulation format recognition and OSNR estimation (except 128QAM)

Department, Amirkabir Univ. of Technology, Iran (the Islamic Republic of). this paper proposes design of a nano scale plasmonic waveguide temperature sensor coupled with a cavity containing ethanol . Our 2D-FDTD simulations demonstrate considerable improvement for thermal sensitivity up to 0 .97 nm/°C compared with previous reports .

monitor flying Conopomorpha sinensis Bradley pest insects in a Lychee fruit orchard in South China . 18:30–21:30 Banquet & Awards Ceremony

T4A.271 Dynamic Measurement of Projected Area, Average Phase, and Entropy of Living U87-MG Cells Based on Digital Holographic Microscopy, Ning Ma1; 1Shanghai Univ., China. Dynamic measurement of projected area, average phase, and entropy of living U87-MG cells based on digital holographic microscopy (DHM), providing a dynamic and quantitative method for pathological research .

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W1A.1 • 08:30 Coupled Multi-Core Fiber Technologies, Taiji Sakamoto1, Masaki Wada1, Yusuke Yamada1, Shinichi Aozasa1, Kazuhide Nakajima1; 1NTT Access Service Systems Labo- ratories, Japan. We briefly review the recent progress of the coupled multi-core fiber technologies in terms of the fiber design, cabling and amplification for high spatial density and energy efficient space division multiplexing (SDM) transmission system .

W1A.2 • 09:00 Title to be Announced, Ming Tang1; 1Huazhong Univ of Science and Technology, China. Abstract not available .

W1B.1 • 08:30 Transmission of 214 Gbps IM/DD PAM-4 Over 10 km Based on 25 GHz-Class EML Using Low-Power Nonlinear MLSE, Huanlu Li1, Weiyu Wang1, Jian Tang1, Haiyang Zhang1, Zhilei Huang1, Qinyu Zhou1, Guoxi Wang1, Ming Li2, Yuchun Lu1; 1Huawei Technologies, China; 2Inst. of Semiconductors, CAS, China. 214 Gbps per lane PAM-4 transmissions are demonstrated with 25 GHz class commercial EML . Employing an improved MLSE algorithm enables the system to meet 10 km transmission with under KP4-FEC BER threshold requirement . The experiment results show the potential of commercial EML for 800 GbE application .

W1B.2 • 08:45 Experimental Demonstration of 50-Gb/s/λ O-Band CWDM Direct-Detection Transmission Over 100-km SMF, Yang Hong1, Natsupa Taengnoi1, Kyle Bottrill1, Naresh Thipparapu1, Yu Wang1, Jayanta Sahu1, David Richardson1, Periklis Pet- ropoulos1; 1Univ. of Southampton, UK. We demonstrate the first single-sideband 50-Gb/s/λ coarse WDM direct-detection transmission in the O-band . It is shown that the Kramers-Kronig-detection assisted single-sideband transmission exhibits significant OSNR sensitivity improvements over double-sideband transmission, enabling up to 100-km reach .

W1B.3 • 09:00 Performance Enhanced Gerchberg-Saxton Algorithm Based Electrical Disper- sion Pre-Compensation for Intensity-Modulation and Direct-Detection System, Dongdong Zou1, Wei Wang1, Mingzhu Yin1, Qi Sui2, Zhaohui Li1, Fan Li1; 1Sun Yat-Sen Univ., China; 2Southern Laboratory of Ocean Science and Engineering, China. A performance enhanced Gerchberg-Saxton algorithm based dispersion pre-compensation scheme is proposed for IM-DD system . The simulation results show that 56-GBaud PAM-4 signal is successfully transmitted over 400-km SMF in C-band enabled by the proposed scheme .

W1B.4 • 09:15 EML-Based IM/DD Transmission Over Dispersion-Uncompensated Links Using Low-Complexity Optimized Detection, Shuangyue Liu1, Han Cui1, Xizi Tang1, Yueming Lu1, Yaojun Qiao1; 1Beijing Univ Posts & Telecommunications, China. We experimentally demonstrate an EML-based 40-Gbit/s OOK IM/DD transmission over 120-km SSMF using a low-complexity optimized detection algorithm, which requires no multiplication during the update of survival path, simultaneously showing its superiority against chromatic dispersion .

W1C.1 • 08:30 Title to be Announced, Remus Nicolaescu1; 1Pointcloud Inc, USA. Abstract not available .

W1C.2 • 09:00 High-Speed Silicon Photonic Modulators and Switches, Tao Chu1; 1Rzhanov Ins of Semiconductor Physics RAS, China. Based on silicon photonic integrations, 112Gbps high-speed modulators fabricated on SOI and LNOI substrates, as well as large-scale SOI photonic switches with a switching speed of less than several nano-seconds will be demonstrated .

08:30–10:00 W1A • Multicore Fibers Presider: Siyuan Yu, University of Bristol, UK

08:30–10:00 W1B • IM-DD Systems Presider: Ning Liu, Soochow University, China

08:30–10:00 W1C • Silicon Photonics III Presider: To Be Announced

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W1D.1 • 08:30 Microwave Photonic Cognitive Radar System, Dan Zhu1, Shilong Pan1; 1Nanjing Univ Aeronautics & Astronautics, China. Micro- wave photonic cognitive radar system can realize high resolution detection and good environment adaptiveness simultaneously . The developments of microwave photonic cognitive radar system and the key photonic techniques are presented and discussed .

W1F.1 • 08:30 20 Gbps Optical Wireless Communication System Enabled by Field-Programmable Metasurfaces, Zizheng Cao1, Jianou Huang1, Chao Li2, Ton Koonen1; 1Eindhoven Univ. of Technology, Netherlands; 2Anhui Univ., China. Beam-steering is an elementary technique for optical wireless communication (OWC) systems . In this talk, we review our work of a 20 Gbps 2D beam-steering OWC system based on the novel passively field-programmable gap-surface plasmon metasurfaces .

W1D.2 • 09:00 High-Accuracy Small Target Recognition With Photonics-Based Radar HRRP, Jinhu Li1, Fangzheng Zhang1, Shilong Pan1, Bindong Gao1, Guanqun Sun1; 1Nanjing Univ Aeronautics & Astronautics, China. Small target recognition using high resolution range profiles (HRRP) of an 8-GHz bandwidth photonics-based radar is demonstrated . Applying convolutional neural networks for feature extraction and classification, the recognition accuracy reaches as high as 97 .16%

W1F.2 • 09:00 Highly Reliable and High Speed InGaAs PIN Photodetector on Si by Heteroepitaxy, Bowen Song1, Bei Shi1, Si Zhu1, Simone Š . Brunelli1, Jonathan klamkin1; 1Univ. of California Santa Barbara, USA. InGaAs photodiodes were realized on Si by heteroepitaxy, demonstrating the dark current density of 0 .45 mA/cm2, responsivity of 0 .7 A/W, bandwidth of 11 .2 GHz and 17 years equivalent room-temperature operation

W1D.3 • 09:15 Reconfigurable Photonic Channelized Receiver Based on Polarization Multiplexing and Coherent Detection, Huan Huang1, Xiaowen Wang1, Chongfu Zhang1, Sinian Liu1, Kun Qiu1; 1Univ. Electron. Sci. & Technol. China, China. Based on polarization multiplexing and coherent detection, a reconfigurable and efficient photonic channelized receiver is proposed . To show the reconfigurability, two broadband signals with different center frequencies and bandwidths are channelized into different-size sub-channels respectively .

W1F.3 • 09:15 Monolithic High Power Master Oscillator Power Amplifier Emitting 2.2 W at 1550 nm, Hao Wang1, Ruikang Zhang1, Dan Lu1, Wei Wang1, Lingjuan Zhao1; 1Inst Semiconductors, CAS, China. We present the design and the performance of monolithically integrated master oscillator power amplifier at 1550 nm . The MOPA with 2 .5 mm total cavity, single mode kink-free output power is up to 2 .2 W .

08:30–10:00 W1D • Microwave Photonic Measurement Presider: Peixuan Li, Southwest University of Science & Technology, China

08:30–10:00 W1F • Optoelectronics Devices II Presider: To Be Announced

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W1A.3 • 09:30 Design, Fabrication and Measurement of a Novel Ultra Low Crosstalk 7-Core-10- Mode Fiber, Lei Shen2,1, Xiaoyue Deng3, Jun Chu2,1, Yin Li2,1, Zhao Yao2,1, Peng Li2,1, Liubo Yang2,1, Lei Zhang2,1, Jie Luo2,1, Xiaobo Lan2,1, Hui Lv3, Yucheng Yao3; 1YOFC, China; 2State Key Laboratory of Optical Fiber and Cable Manufacture technology, China; 3School of Science, Hubei Univ. of Technology, China. We report the design, fabrication and measurement of a weakly-coupled 7-core-10-mode fiber . The attenuation of LP01 mode is 0 .22dB/km and the crosstalk of the cores are less than -50dB/km . This FM-MCF can be used in weakly-coupled SDM systems that allows to multiply the capacity .

W1B.5 • 09:30 AI for Fast and Accurate Optical Fiber Channel Modeling, Lilin Yi1, Hang Yang1, Ze- kun Niu1, Shilin Xiao1, Weisheng Hu1; 1Shanghai Jiao Tong Univ., China. Deep learning is investigated to fast learn optical fiber channel with low complexity . The modeling shows robust generalization abilities under different optical launch powers, modulation formats, input signal distributions and transmission distance up to 1000km .

W1C.3 • 09:30 Enhanced Nonlinear Wavelength Conversion in Silicon Photonic Waveguides Beyond the Singlemode Regime, Mingfei Ding1; 1Zhejiang Univ., China. Nonlin- ear light–matter interaction is demonstrated with ultralow-loss silicon-on-insulator photonic waveguides beyond the single-mode regime . Significant enhancement of nonlinear photonic effects is observed with a pump power of 15 dBm .

W1C.4 • 09:45 O-Band P-Doped InAs/GaAs Quantum dot Lasers Directly Grown on SOI Sub- strate, Jing-Zhi Huang3,1, Ting Wang3,2, jiajian chen3, Zihao Wang3,1, Jianjun Zhang3,1; 1School of Physical Sciences, Univ. of Chinese Academy of Sciences, China; 2Songshan Lake Materials Laboratory, China; 3Inst. of Physics, Chinese Academy of Sciences, China. This work demonstrated the first electrically pumped ground-state InAs QD narrow ridge lasers emission at 1310 nm (O-band) epitaxially grown on standard SOI substrate with continuous-wave (CW) current injection at room temperature .


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W1D.4 • 09:30 Simultaneous Target Positioning and Velocity Measurement Using a DP-BPSK Modulator With VLFM Waveform Modula- tion, Yan Li1, Muguang Wang1; 1Beijing Jiaotong Univ., China. A photonics-assisted system based on a dual-polarization binary phase shift keying modulator and auxiliary receiving antenna that can simultaneously implement target positioning and velocity measurement is proposed using V-shaped linear frequency modulated waveforms .

W1F.4 • 09:30 Heterogeneous O-Band InAs/GaAs Quantum-Dot Optical Amplifier on Silicon, Antoine Descos1, Geza Kurczveil1, Di Liang1, Raymond G . Beausoleil1; 1Hewlett Packard Labs, USA. We demonstrate a heterogeneous QD/silicon O Band SOAs with gain over 15 dB and noise figure around 7 dB on a platform supporting DFBs, high speed modulators and no impact on high-speed signal integrity up to 32 .1 Gbps .

W1D.5 • 09:45 Speed-Enhanced Optical Fiber Transfer Delay Measurement Based on Digital Phase Detecting, Lihan Wang1, Xi Liu1, Xufeng Chen1, Shupeng Li1, Xiaohu Tang1, Xiangchuan Wang1, Shilong Pan1; 1Nanjing Univ Aeronautics & Astronautics, China. A speed- enhanced optical fiber transfer delay measurement system is proposed based on digital phase detecting . The measurement speed reaches as high as 6 .7 kHz, which is improved by 320 times compared to the previous work .

W1F.5 • 09:45 Electrical Control of Valley Polarization in Monolayer Molybdenum Ditelluride via Exciton-Trion Interactions, Qiyao Zhang1,2, Hao Sun1,2, Jiacheng Tang1,2, Xingcan Dai1, Zhen Wang1,2, Cun-Zheng Ning1,2; 1Tsinghua Univ., China; 2Frontier Science Center for Quantum Information, China. We systematically investigated the electrically-tunable valley polarization mechanism in monolayer MoTe2 by helicity-resolved photoluminescence and ultrafast pump-probe spectroscopy . The interplay of exciton-to-trion conversion and valley dynamics is revealed, enriching the understanding of valley manipulation .


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W2A.1 • 10:30 Omitting Conventional Saturable Absorbers in Thulium-Doped Mode-Locked Fibre Lasers, Dennis C . Kirsch1, Maria Chernysheva1; 1Leibniz Inst. of Photonic Tech- nology, Germany. Conventional material saturable absorbers and artificial modulators cause a high risk of damage, a rise of self-starting threshold, and poor integration . The exclusion of such elements enables more reliable, highly integrated ultrafast fibre laser architecture .

W2A.2 • 11:00 Observation of Pulsating Dissipative-Soliton-Resonance Pulses in an Yb-Doped Fiber Laser, Zhuang Wang1, Heping Li1, Junwen Li1, Wenxiong Du1, Zhiyao Zhang1, Yong Liu1; 1Univ of Electronic Science & Tech China, China. We present the first experimental observation of pulsating dissipative-soliton-resonance (DSR) pulses in an Yb-doped figure-eight fiber laser . Our results would stimulate further research on the dynamics of DSR pulses in dissipative systems .

W2A.3 • 11:15 Phase-Sensitive Amplification in a Dispersion Oscillating Fiber With Two Pumps, Debanuj Chatterjee1, Andrey Konyukhov2, Alexej Sysoliatin3, Deepa Venkitesh1; 1Elec- trical Engineering, IIT Madras, India; 2Saratov State Univ., Russian Federation; 3A.M. Prokhorov General Physics Inst., Russian Federation. Propagation of two pumps and degenerate signal in a dispersion oscillating fiber(DOF) is investigated analytically and numerically . Unlike the single-pump case, the gain sidebands are found to be influenced by the generated high-order pumps .

W2B.1 • 10:30 ANN-Based Anti-Tilt High-Precision Indoor Positioning System Using Triple-LED and Security Camera, Shuang Zhao1, Dahai Han1, Xiaoyun Li1, Peiyu Jia1, Shengnan Li1, Min Zhang1; 1Beijing Univ. of Posts and Telecomm, China. In this paper, an artificial neural network (ANN) based high-precision positioning system using triple-LED and security camera is proposed, which achieves a mean positioning error (MPE) of 0 .87 cm in a space of 1m×1m×1m .

W2B.2 • 10:45 An Integrated Visible Light Communication and Positioning CDMA System Implementation Based on OZCZ Code, Danyang Chen1, Jianping Wang1, Huimin Lu1, Lifang Feng1, Jianli Jin1; 1Univ of Science and Technology Beijing, China. A novel integrated visible light communication and positioning CDMA system based on OZCZ code is proposed . The results show that the OZCZ code is better than conventional code considering the system BER and positioning accuracy .

W2B.3 • 11:00 Visible Light Communication Channel Modeling by Experiment-Data-Driven Deep Learning, Yanwen Zhu1, Dahai Han1, Chuan Yang1, Shengnan Li1, Xiaoyun Li1, Min Zhang1; 1Beijing Univ. of Posts and Telecommunications, China. An experiment-data- driven channel-modeling method based on bidirectional long short-term memory is proposed for visible light communication channels . The resulting mean absolute error is stable in a small range, reaching 0 .009 without occupying spectrum resources .

W2B.4 • 11:15 Characterization of a Practical 3-m VLC System Using Commercially Available Tx/ Rx Modules, Chen Chen1, Yungui Nie1, Xin Zhong1, Min Liu1, Binbin Zhu2; 1Chongqing Univ., China; 2Shenzhen Hua Chuang Chip Lighting Co., Ltd, China. We experimentally characterize the performance of a practical 3-m VLC system using commercially available Tx/Rx modules . Results show that the achievable rates are at least 120 and 320 Mbit/s when applying OOK and OFDM, respectively .

W2C.1 • 10:30 Deterministic Edge Optical Networks, Jiawei Zhang1; 1Beijing Univ of Posts & Telecom, China. With MEC, most connections will be terminated at the edge, among which ultra-low latency and reliable services are dominated, which needs the edge networks to be deterministic . The topic will be discussed by this talk .

W2C.2 • 11:00 Experiment of Extended Segment Routing Enabled Fast End-to-End Service Pro- visioning in Multi-Domain for the Fifth Generation Fixed Network (F5G), Li Xin1, Yongli Zhao1, zhuotong li1, YaJie Li1, Hao Li2, Gang Xie2, Yi Lin2, Jie Zhang1; 1Beijing Univ. of Posts and Telecommunications, China; 2HUAWEI TECHNOLOGIES CO.LTD., China. We propose an extended segment routing-based wisdom automatic service provisioning (SR-WASP) in multi-domain for F5G . Results show that SR-WASP can significantly reduce the blocking probability and the latency of lightpath construction .

W2C.3 • 11:15 Federated Transfer Learning-Based Data Security Assurance in Edge Optical Networks for IoT Applications, Qiuyan Yao1, Hui Yang1, Bowen Bao1, Zhengjie Sun1, Chao Li1, Jie Zhang1, Shanguo Huang1; 1Beijing Univ of Posts & Telecom, China. We propose a federated transfer learning framework to realize data security guarantee in edge optical networks for IoT applications . Results indicate our proposal enables efficient model training and transferring by exploiting local data .

10:30–12:00 W2A • Ultrafast Fiber Lasers & Nonlinear Optics Presider: Pu Zhou, National University of Defense Technology, China

10:30–12:00 W2B • Visible Light Communication and Positioning Systems Presider: Nan Ye, Shanghai University, China

10:30–12:00 W2C • Edge Optical Networks Presider(s): Shanguo Huang, BUPT, China

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W2D.1 • 10:30 Chip-Scale Intelligent Photonic Signal Processing (Invited), Jian Wang1; 1Wuhan National Laboratory for Optoelectronics, Huazhong Univ. of Science and Technology, China. In this talk, we review recent advances in chip-scale intelligent photonic signal processing . We focus on multi-dimensional photonic signal processing, reconfigurable, programmable and intelligent photonic signal processing and its practical applications in fiber-optic communication systems .

W2E.1 • 10:30 Integrated Frequency Combs for Microwave Photonics, Jijun He1, Junqiu Liu1; 1Swiss Federal Inst. of Technology Lausanne, Switzerland. We review recent achieve- ment of the integrated Si3N4 circuits and the demonstration of chip-scale frequency combs (microcombs), and discuss the microwave applications of microcombs, such as low noise microwave signal generation and microwave filter .

W2G.1 • 10:30 Ultrahigh-Q AlGaAs-on-Insulator Microresonators for Ultra-Efficient Integrated Nonlinear Photonics, Weiqiang Xie1; 1Shanghai Jiao Tong Univ., China. AlGaAs offers strong material nonlinearity and holds great potential for integrated nonlinear photonics . Here, we present our recent work on heterogeneously integrated low-loss AlGaAs nanophotonics on Si and demonstrate ultrahigh-Q AlGaAs microresonators and various ultra-efficient nonlinear applications .

W2D.2 • 11:00 Title to be Announced, Junfeng Song1; 1Jilin Univ., China. Abstract not available .

W2E.2 • 11:00 Artificial Intelligence Powered Microwave Photonic Signal Processing, Weiwen Zou1, Shaofu Xu1; 1Shanghai Jiao Tong Univ., China. We propose an architecture of artificial intelligence (AI) powered microwave photonic signal processing, which successfully implements various applications such as high-quality signal recovery, high accuracy target recognition and wideband signal separation .

W2G.2 • 11:00 High-Efficiency Thermo-Optical Phase Shifter Using Wave-Vector and Polarization Multiplexing, Zhen Wang1, Qihang Shang1, Yong Zhang1, Yikai Su1; 1Shanghai Jiao Tong Univ., China. We demonstrate a four-pass thermo-optic phase shifter using wave- vector and polarization multiplexing . The experiment shows that the structure reduces the power consumption of a phase shifter by 3 .2 times with a 3 .1-dB insertion loss .

W2G.3 • 11:15 Fano Resonance With Sharp Transmittance Slope Based on High-Q Factor Multi- Mode Micro-Ring Resonator, Yuan Yuan1, Ruihuan Zhang1, He Yu1, Yong Zhang1, Yikai Su1; 1Shanghai Jiao Tong Univ., China. We propose a Fano resonance generator based on a multi-mode racetrack micro-ring resonator . A high slope rate of 3210 dB/ nm is obtained . The extinction ratio is ~ 13 .6 dB .

10:30–12:00 W2D • Photonic Integrated Signal Processing Presider: Yaocheng Shi, Zhejiang University, China

10:30–12:00 W2E • Frequency Comb Presider: Yihan Li, Beihuang University, China

10:30–12:00 W2G • Optical Switch and Tunable Devices Presider: To Be Announced


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W2A.4 • 11:30 The Impact of Fiber Cladding Diameter on Forward Brillouin Scattering in Single-Mode Fibers, Yunshan Zhou1, Zhiyong Zhao1, Ming Tang1; 1Wuhan National Laboratory for Optoelectronics (WNLO), School of Optical and Electronic Informa- tion, Huazhong Univ. of Science and Technology, China. The impact of fiber cladding diameter on forward stimulated Brillouin scattering (FSBS) in single-mode fiber is investigated by simulation and experiment in this work, providing a guidance for FSBS engineering in optical fibers .

W2A.5 • 11:45 Different Electrodes Partial Discharge Detections via Fluorescent Fiber, Qiang Guo1, Feiyang Xie1, Xiaoqi Huang2, Changfeng Zhang1, Mao Li1, Yuheng Yan1, Luchuan Zheng1, Taiqi Wang1; 1Shanghai Univ., China; 2China Academy of Space Technology, China. Fluorescent fiber is used for Partial Discharge (PD) with different electrodes . The PD signal is linearly correlated with transient discharge current . Experimental results show the shape of the electrode affects the intensity of PD signal .

W2B.5 • 11:30 A 3D Visible Light Positioning and Orienteering Scheme Using Two LEDs and a Pair of Photo-Detectors, Xiaobai Yang1, Zile Jiang2, Xiaodi You1, Jian Chen3, Changyuan Yu4, Yongcheng Li1, Mingyi Gao1, Gangxiang Shen1; 1Soochow Univ., China; 2Nanjing Univ., China; 3Nanjing Univ. of Posts and Telecommunications, China; 4The Hong Kong Polytechnic Univ., Hong Kong. A 3D visible light positioning (VLP) scheme is proposed by referring to the distances between two luminaires and a pair of photo-detectors . VLP accuracy < 10 cm can be achieved while offering terminal orientation information .

W2B.6 • 11:45 Multi-Access Indoor Optical Wireless Communications Enabled by MLC-NOMA and Direct Detection With Kramers-Kronig Receivers, Jianghao Li1, Qi Yang2, Dai xiaoxiao2, Christina Lim1, Ampalavanapillai Nirmalathas1; 1The Univ. of Melbourne, Australia; 2School of Optical and Electronic Information, Huazhong Univ. of Science and Technology, China. We propose a multiple access indoor optical wireless communication system enabled by multilevel coding based non-orthogonal multiple access, which is shown by the simulation of a 2m direct detection optical wireless link with Kramers-Kronig reception .

W2C.4 • 11:30 Deep Reinforcement Learning Based DNN Model Partition in Edge Computing- Enabled Metro Optical Network., Suhao Zheng1, Xiao Xiao2, YaJie Li1, Zebin Zeng1, Zhengyin Liang1, Yongli Zhao1, Jie Zhang1; 1Beijing Univ. of Posts and Telecommunica- tions, China; 2Univ. of Colorado Boulder, USA. A deep reinforcement learning based DNN model partition and deployment algorithm is proposed between edge nodes and cloud in metro optical network . Simulation results show that the algorithm can deploy more DNN tasks than heuristics .

W2C.5 • 11:45 Transfer Learning Based Parallel Computation Offloading Scheme Between MEC Servers in Metro Optical Networks, Lihao Liu1, Shan Yin1, Liyou Jiang1, Zhenhao Wang1, Shanguo Huang1; 1State Key Lab of Information Photonics and Optical Communications, Beijing Univ. of Posts and Telecommunications, China. Aiming at the computing task offloading between MEC servers, this paper proposes a transfer learning based scheme with high applicability, which can keep low blocking probability and quickly adapt to different optical network topologies .


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W2D.3 • 11:30 Photonic Digital-to-Analog Converter Based on Microring Resonator and Photonic-Nonvolatile-Memory, Peng Zhao1, Pengxing Guo1, Zhiyuan Liu1, Weigang Hou1, Lei Guo1; 1CQUPT, China. We propose an N-bit photonic digital-to-analog converter (PDAC) based on non-volatile memory and microring resonators . Simula- tion results show that the proposed structure can operate at 10 Gbps and maintain a high conversion accuracy .

W2E.3 • 11:30 Self-Oscillating Broadband Optical Frequency Comb Generation Using an EML- Based Optoelectronic Oscillator and a Recirculating Frequency Shifter, Quanjing Zhao1, Juanjuan Yan1; 1Beihang Univ., China. A self-oscillating optical frequency comb generator is designed and demonstrated using an electroabsorption modulated laser based optoelectronic oscillator and a recirculating frequency shifter . A 10GHz 38-tone OFC is generated with a 1 .2dB flatness .

W2G.4 • 11:30 Calibration-Free 2 × 2 Mach-Zehnder Switches With Ultralow-Loss MMI Couplers, Lijia Song1, Hongxuan Liu1, Yingying Peng1, Huan Li1, Daoxin Dai1; 1Zhejiang Univ., China. Calibration-free 2 × 2 Mach-Zehnder switches have been proposed and experimentally demonstrated with ultralow-loss multimode interference couplers with multi-segment multimode section .

W2D.4 • 11:45 The Influence of Proton Radiation on the Performance of Silicon Mach-Zehnder Modulator, Changhao Han1, Zhaoyi Hu2, Yuansheng Tao1, Engang Fu2, Xingjun Wang1; 1State Key Laboratory of Advanced Optical Communications System and Networks, Department of Electronics, School of Electronics Engineering and Computer Science, Peking Univ., China; 2State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking Univ., China. The influence of proton radiation on silicon Mach- Zehnder modulator performance was studied for space environment . The modulator was sensitive to proton radiation while still demonstrated a certain working ability after 3MeV protons of 5×1013 ions/cm2 .

W2E.4 • 11:45 Octave-Spanning Frequency Comb Generation Based on a Dual-Mode Square Microlaser and a Brillouin Fiber Loop, ting wang1, Ji-Liang Wu1, Xu-Cheng Zhang2, Yue-De Yang1, Jin-Long Xiao1, Guan-Shi Qin2, Yong-Zhen Huang1; 1Inst. of semiconductors, CAS, China; 2State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Univ., China. A 38-GHz spaced optical frequency comb spanning from 1100 nm to 2200 nm is generated by the nonlinear spectral broadening of a Brillouin optical comb seeded by a dual-mode square microlaser .

W2G.5 • 11:45 Tunable Dispersion Compensator Based on Taper Bragg Gratings With Heating- Engineering, Shujun Liu1, Jianghao He1, Daoxin Dai1; 1Zhejiang Univ., China. A tunable dispersion compensator on silicon is proposed and demonstrated by using taper Bragg gratings with engineered heating . The dispersion tuning range is about 5-15 ps/nm in theory .


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W3A.1 • 13:30 High Power Narrow-Linewidth Fiber Lasers, Pu Zhou1; 1National Univ of Defense Technology, China. The key technology for power scaling of narrow-linewidth will be discussed, the status of high power narrow-linewidth fiber lasers, and its future perspective, will be briefly summarized .

W3A.2 • 14:00 A High Slope Efficiency Ring-Cavity Single-Frequency Fiber Laser Based on Yb: YAG Crystal-Derived Silica Fiber, Ying Wan1, Jianxiang Wen1, Kai Zou1, Chen Jiang1, Fufei Pang1, Tingyun Wang1; 1Shanghai Univ., China. A high-concentration Yb-doped YAG crystal-derived silica fiber (YCDSF) is fabricated using the melt-in-tube method . Based on this fiber, a ring-cavity single-frequency fiber laser (SFFL) has been accom- plished, and its slope efficiency is up to 21 .7% .

W3A.3 • 14:15 S-Band Single-Longitudinal-Mode Fiber Laser With Ultra-Narrow Linewidth, Ultra-High OSNR and High Stability, Zhengkang Wang1, Jianming Shang2, Yaojun Qiao1, Song Yu2; 1Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Information and Communication Engineering, Beijing Univ. of Posts and Telecommunications, China; 2School of Electronic Engineering, Beijing Univ. of Posts and Telecommunications, China. We investigated an S-band single-longitudinal-mode fiber laser based on a high-quality double-ring passive subring resonator . An ultra-narrow linewidth of 568 Hz and an ultra-high OSNR of 77 dB were achieved .

W3A.4 • 14:30 Blue Laser-Induced Destruction of Active Centers in Cladding-Pumped Bi-Doped Fiber, Aleksandr Kharakhordin1, Aleksandr Vakhrushev1, Sergey Alyshev1, Elena Fir- stova1, Aleksandr Khegai1, Konstantin Riumkin1, Mikhail Melkumov1, Alexey Lobanov2, Vladimir Khopin2, Alexey Guryanov2, Sergey Firstov1; 1Prokhorov General Physics Inst. of the Russian Academy of Sciences, Russian Federation; 2Inst. of Chemistry of High-Purity Substances of the Russian Academy of Sciences, Russian Federation. We report the destruction of laser-active centers in a bismuth-doped fiber induced by a blue laser diode using a cladding-pump configuration . The effect of bleaching in this configuration on bismuth-doped fiber laser characteristics was studied .

W3B.1 • 13:30 Phase-Sensitive Pre-Amplified Receiver for High Sensitivity Optical Communica- tions, Ravikiran Kakarla1; 1Univ. of Southampton, UK. A record sensitivity of 1 photon- per-bit achieved at 10Gbps using quadrature phase-shift keyed transmitter with 100% overhead forward error correction code and a phase-sensitive pre-amplified coherent receiver with a noise figure of 1 .2 dB .

W3B.2 • 14:00 A Photon Limited SiPM Based Receiver for Internet of Things, Yangchun Li1, Yuanyuan Hua1, Robert Henderson1, Danial Chitnis1; 1Univ. of Edinburgh, UK. We compared two photons counting readout methods on a SiPM based receiver . The results show that integration method performs better BER in non-linear counts and 1Mbps is achieved under 9 .44×10-9W with 11 .78 photons per bit .

W3B.3 • 14:15 Observing Cross-Channel NLI Generation in Disaggregated Optical Line Systems, Elliot P . London1, Emanuele E . Virgillito1, Andrea D’Amico1, Antonio Napoli2, Vit- torio Curri1; 1Politecnico di Torino, Italy; 2Infinera, Germany. We investigate spatially separated XPM generation in a wide variety of 400G-ZR+ 64GBd pump-and-probe simulations, demonstrating the existence of a per-span upper bound that depends solely upon accumulated dispersion .

W3B.4 • 14:30 Ultrahigh Resolution Narrow Linewidth Measurement Based on Brillouin Laser in a High Q Whispering Gallery Mode Cavity, Yong Geng1, Boyuan Liu1, Qiang Zhang1, Xinjie Han1, Kun Qiu1, Heng Zhou1; 1Univ of Electronic Science & Tech China, China. We demonstrate ultrahigh resolution narrow linewidth measurement based on Brillouin laser in a high Q Whispering gallery mode cavity . This new scheme can achieve a higher spectral resolution and overcome the main drawbacks of conventional schemes .

W3C.1 • 13:30 Towards IPoDWDM for Data Center Interconnects: Coherent Pluggables and Open Line Systems, Jianqiang Li1; 1Kuaishou Technology, USA. Recently, small-form- factor 400ZR/ZR+ coherent pluggables is a main driver and enabler to the renaissance of IPoDWDM . IPoDWDM is quite native for metro data center interconnects where open line systems have been widely deployed .

W3C.2 • 14:00 IM/DD Transmission for Data Center Optical Interconnects, Gordon N . Liu1, Ji- awang Xiao1, Caoyang Liu1, Gangxiang Shen1; 1Soochow Univ., China. The demand for data rate of client-side transceivers is increasing due to the development of data center optical interconnect . To meet the high-speed requirement, the recent intensity modulation and direct detection transmission technologies are discussed .

W3C.3 • 14:30 Optimizing Tradeoff Between Signal Impairment of All-Optical Wavelength Con- version and Flexibility of Wavelength Resource Allocation in Optical Networks, Xinxin Bu1, Ningning Guo1, Gangxiang Shen1, Biswanath Mukherjee1, Shuiping Jie2, Xiaodong Fu2; 1Soochow Univ., China; 2Zhongtian Broadband Technology, China. We compare performance of three strategies for converter placement that take into account signal impairment of all-optical wavelength conversion . Simulations show effectiveness of the proposed approaches to improve lightpath blocking performance .

13:30–15:30 W3A • Fiber Lasers Presider: Pu Zhou, National University of Defense Technology, China

13:30–15:30 W3B • Systems with High Sensitivity Presider: Nan Ye, Shanghai University, China

13:30–15:15 W3C • Data Center Optical Networks Presider(s): Shanguo Huang, BUPT, China


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W3D.1 • 13:30 Integrated Circular-Sided Polygon Microlasers, Yong-Zhen Huang1, Ke Yang1,2, Yue-De Yang1,2, Jia-Chen Liu1,2, Jin-Long Xiao1,2; 1State Key Laboratory of Integrated Optoelectronics, Inst. of Semiconductors,Chinese Academy of Sciences, China; 2Center of Materials Science and Optoelectronics Engineering, Univ. of Chinese Academy of Sciences, China. Mode Q factors and field patterns can be greatly modulated in circular-sided polygonal microcavities, which are suitable for photonic integration . Lasing characteristics are reported for integrated microlasers with circular-sided square and octagon microcavities, respectively .

W3D.2 • 14:00 Mode-Locked Lasers on a Silicon Nitride Platform, Bart Kuyken1; 1Ghent Univ., INTEC, Belgium. The low loss silicon nitride platform with its wide transparency range and lack of two-photon absorption at telecom wavelengths is exploited to make high performant compact, electrically pumped mode-locked lasers on chip .

W3D.3 • 14:30 On-Chip, Optical Injetion-Locked III-v/Si Micro-Ring Lasers, Stanley Cheung1, Yuan Yuan1, Antoine Descos1, Di Liang1, Raymond G . Beausoleil1; 1Hewlett Packard Labs, USA. We demonstrate >9× direct modulation bandwidth improvement up to 45 GHz for heterogeneous III-V/Si micro-ring lasers via optical injection locking (OIL) . Co-integration of master and slave lasers on the same chip was also realized . We also demonstrate on-chip OIL without the need for external lasers, thus improving bandwidth > 4× up to 20 GHz .

W3E.1 • 13:30 Optoelectronic Oscillator for High-Quality Microwave Signal Generation, Jiejun Zhang1; 1Jinan Univeristy, China. Optoelectronic oscillators (OEOs) with novel mode control and selection techniques will be discussed, including parity-time symmetry, Fourier domain mode locking and optical synthetic dimension, which enable OEOs with unprecedented performance and functionalities .

W3E.2 • 14:00 Photonics-Enabled Microwave Frequency Synthesis, Yihan Li1; 1Beihang Univ., China. This talk discusses the advantages and limitations of several representative approaches based on photonic techniques for the generation of high-quality RF waveforms in the microwave, millimeter-wave and terahertz spectral regions .

W3E.3 • 14:30 Photonics-Based Reconfigurable Chirp Signal Generation With Controllable Amplitude, Phase, and Frequency, Wenhao Du1, Dan Zhu1, Shilong Pan1; 1Nanjing Univ Aeronautics & Astronautics, China. A photonics-based reconfigurable chirp signal generation scheme using optical frequency combs (OFCs) with controllable amplitude, phase, and frequency is proposed . The center frequency, bandwidth, and the time duration can also be adjusted flexibly .

13:30–15:30 W3D • Advanced Diode Lasers Presider: To Be Announced

13:30–15:30 W3E • Microwave Photonic Signal Generation Presider: Weifeng Zhang, Beijing Institute of Technology, China

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W3A.5 • 14:45 Transverse Mode Fiber Laser Based on Few-Mode Polarization-Maintaining Fiber Long-Period Grating, Chen Jiang1, Yunqi Liu1, Yuehui Ma1, Ying Wan1, Zinan Huang1, Chengbo Mou1; 1Shanghai Univ., China. We propose the fabrication of long-period grating in a few-mode polarization-maintaining fiber using CO2-laser . A transverse mode fiber laser based on the grating has been proposed and demonstrated experimentally .

W3A.6 • 15:00 Mid-Infrared Fiber Lasers Based on Gas-Filled HCFs, Zefeng Wang1, Zhiyue Zhou1, Yulong Cui1, Wei Huang1, Hao Li1, Wenxi Pei1; 1National Univ. of Defense Technol- ogy, China. With the rapid development of HCFs, fiber gas lasers have emerged as an alternative technology . Recent progress of fiber gas lasers operating at the mid-infrared has been reviewed and prospected .

W3B.5 • 14:45 Time Delay Measurement of Optical Fiber Link With Spatial Resolution, Xufeng Chen1, Shupeng Li1, Lihan Wang1, Xiaohu Tang1, Xi Liu1, Jianbin Fu2, Xiangchuan Wang1, Yaoyao Shi1, Shilong Pan1; 1Nanjing Univ Aeronautics & Astronautics, China; 2Suzhou LiuYaoSi Information Technologies Co., Ltd., China. Time delay measurement of optical fiber link with spatial resolution is proposed . A spatial resolution of 8 .176 cm and length measurement precision of ± 0 .14 mm are achieved .

W3B.6 • 15:00 Physical Layer Cryptography Key Generation by Estimating Channel Character- istics Based on Neural Network, Kun Wu1, Yuefeng Ji1, Hongxiang Wang1; 1BUPT, China. A physical-layer secure key generation scheme based on neural network is proposed . It can efficiently generate symmetric keys with high entropy, adjustable generation rate under the transmission distance of 100 km and bit-rate of 100Gbps .

W3B.7 • 15:15 Physical-Layer Secure Key Distribution Scheme Based on Phase Noise in PSK/ QNSC, Shuang Wei1, YaJie Li1, Kongni Zhu1, Chao Lei1, Yongli Zhao1, Jie Zhang1; 1Beijing Univ. of Posts and Telecommunications, China. A secure key distribution scheme with phase noise resisting the beam splitting attack in PSK/QNSC is proposed . The highest key consistency rate 98 .4% and key generation rate 70 .41 Mbit/s are demonstrated over 50 km SSMF .

W3C.4 • 14:45 Mastering Parameter Uncertainty in Monitoring-Enabled Optical Networks Us- ing Bayesian Inference, Matteo Lonardi1, Petros Ramantanis1, Antonio Massaro1; 1Nokia Bell Labs, France. We refine optical network parameters by jointly leveraging the components’ a priori information and the monitored quality of transmission . The updated uncertainty and correlation properties can be used in design tools to establish new lightpaths .

W3C.5 • 15:00 Delivering Distributed Machine Learning Services in All-Optical Datacenter Net- works With Torus Topology, Jiemin Lin1, Gangxiang Shen1, Zhenwei Zhai1, Danyang Zheng1, Yongcheng Li1, Zeshan Chang2, Liangjia Zong2, Ning Deng2, Tianhai Chang2; 1Soochow Univ., China; 2Huawei Technologies Co., Ltd., China. We propose a WSS based all-optical DCN in Torus topology . A heuristic algorithm is proposed to deliver DML services . Simulation results show the proposed approaches achieve short service execution time and low lightpath signal loss .


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W3D.4 • 14:45 Ultra-Fast and Highly Efficient 850-nm VCSELs for Next-gen PAM-4 Transceivers, Yun-Cheng Yang1, Hao-Tien Cheng2, Chao- Hsin Wu1,2; 1Graduate Inst. of Photonics and Optoelectronics, National Taiwan Univ., Taiwan; 2Graduate Inst. of Electronics Engi- neering, National Taiwan Univ., Taiwan. We fabricated ultra-fast 850 nm VCSELs with high efficiencies, excellent output linearity, and exhibits a modulation bandwidth of up to 32 .4 GHz . Which could be applicable for next-gen 50-100 Gbps PAM4 transceivers .

W3E.4 • 14:45 Simultaneous Low-Correlation Multi-Channel Chaos Generation Based on Asymmetrically-Coupled Semiconductor Lasers Networks, Shiqin Liu1, Ning Jiang1, Yiqun Zhang1, Jiafa Peng1, Anke Zhao1, Kun Qiu1; 1Univ of Electronic Science & Tech China, China. We propose a novel low-correlation multi-channel chaos generation scheme by utilizing asymmetrically-coupled semiconductor laser networks . It is demonstrated that effective bandwidths around 20 GHz, pairwise cross correlation below 0 .1, and time-delay-signature suppression are simultaneously achieved .

W3D.5 • 15:00 Broadband Noise Suppression in Self-Injection Locked Fiber Laser With a High-Q Optical Microresonator, Xiaoying Wang1, Tuo Liu1, Hairun Guo1; 1Shanghai Univ., China. We develop MgF2 high-Q crystalline microresonators (Q~108) and implement laser self-injection locking for an erbium-doped fiber laser in the continuous mode . The locked laser linewidth is 100s kHz, and the broadband spontaneous emission is suppressed .

W3E.5 • 15:00 Computational Model of an Active Mode Locking Optoelectronic Oscillator, Yilin Wu1, Zhen Zeng1, Lingjie Zhang1, Zhiyao Zhang1, Shangjian Zhang1, Heping Li1, Yong Liu1; 1Univ. of Electron. Sci&Tech of China, China. A computational model is proposed for an active mode locking optoelectronic oscillator based on electric amplitude modulation . In the simulation, the building-up process and the phase noise of the generated microwave pulse train are obtained .

W3D.6 • 15:15 Demonstration of Two-Section High-Power 1.27-μm DFB Lasers With High Single Mode Yield for Photonic Integration, Minwen Xiang1, Xiang Ma1, Yuanhao Zhang1, Gong Zhang1, Qiaoyin Lu1, Mingzhi Lu2, Weihua Guo1; 1Huazhong Univ. of Science & Techno, China; 2ORI-CHIP OPTOELECTORNICS TECH. CO. LTD, China. We experimentally demonstrated two-section high power 1 .27-μm single-mode DFB lasers with high single-mode yield for photonic-integration . The fabricated laser exhibited a stable single-mode operation with the output power above 70-mW and slope efficiency over 0 .42-mW/mA .

W3E.6 • 15:15 Frequency Synthesis of High Power Microwaves Exceeding 20 GHz With Uniform Phase Noise Enabled by a Dual-Wavelength Brillouin Laser and a High Saturation Power UTC-PD, hao - . guo1, Zixuan Li1, Yihan Li1, Yuxin Tian2, Enfei Chao2, Bing Xiong2, Yanjun Han2, Jian Wang2, Hongtao Li2, Zheng Zheng1; 1Beihang Univ., China; 2Tsinghua Univ., China. Based on a dual-wavelength Brillouin laser and a packaged high-saturation uni-travelling-carrier photodiode, frequency synthesis exceeding 20 GHz with frequency-independent phase noise and ~0 .74 Watts power is experimentally demonstrated .


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W4A.1 • 16:00 Near-Infrared Plasmonic Optical Fiber Biosensing, Christophe Caucheteur1; 1Universite de Mons, Belgium. We report in vitro bioassays using gold-coated tilted fiber Bragg gratings functionalized for both proteins and cells sensing . Our work is focused towards the measurement of relevant cancer biomarkers .

W4A.2 • 16:30 Temperature Insensitive Refractive Index Sensor Based on Long-Period Fiber Gratings in Capillary, Mengxue Tang1, Yunhe Zhao1,2, Wei Wang1, Yongsheng Yang1, Zuyuan He2; 1Shanghai Maritime Univ., China; 2Shanghai Jiao Tong Univ., China. We proposed a refractive index (RI) sensor based on arc-discharged long-period fiber gratings in capillary . Sensing performance of the gratings have been investigated experimentally . The proposed RI sensor is insensitive to the external temperature variation .

W4A.3 • 16:45 High Sensitivity Interferometric Refractive Index Sensor Based on Tapered Double-Cladding Fiber, Long Chen1, Chen Jiang1, Yuehui Ma1, Kai Guo1, Yunqi Liu1; 1Shanghai Univ., China. We proposed an ultra-sensitive refractive index sensor based on tapered double-cladding fiber Mach-Zehnder Interferometer using CO -laser heat-

W4B.1 • 16:00 Title to be Announced, Alan Pak Tao Lau1; 1The Hong Kong Polytechnic Univ., Hong Kong . Abstract not available .

W4B.2 • 16:30 Phase Noise Compensation in Optical Carrier-Assisted Single-Sideband and Direct Detection PAM-4 System, Dongxu Lu1, Jiahao Huo1, Jinhui Yuan1, Xian Zhou1, Keping Long1; 1Univ Sci & Tech Beijing (USTB), China. We propose a joint phase noise compensation scheme including SP-LMS and RPD-BPS algorithm in the optical carrier-assisted SSB-DD PAM4 system with high spectral efficiency, which can tolerate 1-MHz laser linewidth at a BER of 3 .8e-3 .

W4B.3 • 16:45 Analysis and Compensation of Equalization-Enhanced Phase Noise in Carrier Assisted Differential Detection System, Peng Qin1, Chenglin Bai1,2, Hengying Xu1,2, Lishan Yang1,2, Weibin Sun1,2, Xinkuo Yu1, Xiuhua Lv1, Xue Tang1,2, Yanfeng Bi1, Xueyuan Luo1; 1School of Physics Science and Information Engineering, Liaocheng

W4C.1 • 16:00 Title to be Announced, Hui Hu1; 1Shandong Univ., China. Abstract not available .

W4C.2 • 16:30 Photonic Devices on Thin Film Lithium Niobate, Liu Liu1; 1Zhejiang Univ., China. Thin film lithium niobate (TFLN) emerges as a novel and promising platform for photonic integrated circuits . We will discuss basic waveguide properties based on etched TFLN, as well as passive and active devices based on this platform

2 ing and tapering system . The sensitivity of the sensor can be up to 5484 . nm/RIU . Univ., China; 2Shandong Provincial Key Laboratory of Optical Communication Sci-

W4A.4 • 17:00

4575 ence and Technology, Liaocheng Univ., China. In this paper, the influences of EEPN in the A-CADD and S-CADD systems are analyzed for the first time . Meanwhile, we demonstrate the mitigation of the EEPN influence using ML and BPS phase compensation algorithms .

W4B.4 • 17:00

W4C.3 • 17:00 Development of Passive Resonant Optical Gyroscopes, Huilian Ma1, Lu Liu1, Weiwen Qian1, Shuang Liu1; 1School of Aeronautics and Astronautics, Zhejiang Univ., China. This paper presents a review on passive resonant optical gyroscopes that we developed in recent years . Two types of gyroscopes including resonant fiber optic gyroscope (RFOG) and resonant micro optic gyroscope (RMOG) are introduced, respectively .

Comparison of Iterative Field Reconstruction Schemes for IM/DD PAM4 Signal Transmission, Masayuki Matsumoto1, Takuya Takahashi1; 1Wakayama Univ., Japan. Iterative field reconstruction for electrical dispersion compensation in PAM4 IM/DD transmission system is studied . It is shown that using transmitted signal constraint in the Gerchberg-Saxton iteration algorithm is effective in enhancing the convergence speed .

W4B.5 • 17:15 SSBI-Oriented MISO Equalizer in the Presence of O/E Front-end Frequency Response, Qi Wu1, Yixiao Zhu1, Weisheng Hu1; 1ShangHaijaotong Univ., China. A customized algorithm is proposed to adaptively mitigate ISI and SSBI considering O/E front-end response simultaneously based on a MISO equalizer in SSB direct detection system, and validated in 30GBaud SSB-32QAM 80km SSMF transmission experiment .

Flat Optical Comb Generation Using LNOI-Based Dual-Parallel Mach-Zehnder Modulator, Mengyue Xu1, Yuntao Zhu1, Siyuan Yu1, Xinlun Cai1; 1Sun Yat-Sen Univ., China. Flat optical frequency comb with 5 lines, 30 GHz spacing and 0 .7 dB flatness is generated by an integrated LN dual-parallel Mach-Zehnder modulator . The device features a 1 .2-V driving voltage and broad bandwidth .

W4C.4 • 17:15 Ultra-Broadband and Efficient Edge-Coupler on LNOI Platform, Xiaoyue Liu1, Ying Pan1, Xinlun Cai1; 1Sun Yat-Sen Univ., China. We demonstrate an ultra-broadband and efficient edge-coupler on LNOI platform operating at near-visible to near-infrared bands with coupling loss < 3 .5 dB/facet, which contributes to efficient nonlinear frequency conversion .

16:00–18:00 W4A • Fiber Sensors II Presider: Haiwen Cai, Shanghai Institute of Optics and Fine Mechanics, China

16:00–18:00 W4B • AdvaNced Direct Detection Techniques Presider: Fan Zhang, Peking University, China

16:00–18:00 W4C • Lithium Niobate Integrated Photonics Presider: To Be Announced


Invited

Invited

Wed

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ay, 2

7 O

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W4A.5 • 17:30 Fast-Response High-Temperature all-Fiber Fabry-Perot Dynamic Pressure Sensor for Internal Combustion Engine, Xiu He1, ZengLing Ran1, Zhaoyang Ding1, Tianqi Shao1, Lupeng Gan1, Mengke Yu1, Nan Wang1, Zhengxi He1, Yunjiang Rao1; 1Univ of Electronic Science & Tech China, China. A fast-response high-temperature all-fiber Fabry-Perot sensor for measuring dynamic pressure in an internal combustion engine was investigated . Field tests demonstrated the performance of the sensor was well consistent with that of a commercial Kistler sensor .

W4A.6 • 17:45 Twist Sensor Based on Long-Period Grating Mach-Zehnder Interferometer at 2-μm Waveband, Dandan Liao1, Chen Jiang1, Kangkang Lu1, Yunqi Liu1; 1Shanghai Univ., China. We demonstrate the fabrication of Mach-Zehnder interferometer twist sensor based on the cascaded long-period fiber gratings operating at 2-μm waveband . The torsion sensitivities of wavelength and intensity are 0 .333 nm/(rad/m) and -1 .095 dB/(rad/m), respectively .

W4B.6 • 17:30 Fast WHT-Based Block Precoding for DMT Transmission, Ling Wang1, Ming Chen1, Gang Chen1, Aitao Deng1, Hui Zhou1, Yi Liu2, Yun Cheng2; 1Hunan Normal Univ., China; 2Hunan Univ. of Humanities, Science and Technology, China. We experimentally compare DFT, OCT and WHT-based block precoding (BP), bit loading and the traditional precoding techniques in a short-reach DMT system . A similar BER performance can be achieved with the low-complexity fast WHT-based BP technique .

W4B.7 • 17:45 Precoding-Enabled Probabilistically-Shaped DMT Transmission With Average Signal Power Constraint, Haimiao Long1, Ming Chen1, Long Zhang1, Gang Chen1, Ling Wang1, Yi Liu2, Yun Cheng2; 1Hunan Normal Univ., China; 2Hunan Univ. of Hu- manities, Science and Technology, China. We experimentally investigate the PS-DMT system enabled by DFT, OCT and WHT-based precoding techniques under average transmit signal power constraint . Up to 2 dB receiver sensitivity improvement can be achieved compared to the conventional PS-DMT .

W4C.5 • 17:30 GHz-Bandwidth Optical Filters Based on High-Order Lithium Niobate Microring Resonators, Yuedi Ding1,2; 1HUST, China; 2WNLO, China. We demonstrate GHz- bandwidth optical filters using cascaded lithium niobate (LN) microring resonators (MRRs) . The inserted loss is 0 .84 dB and the extinction ratio is about 35 dB . They can find relevant application in microwave photonics .

W4C.6 • 17:45 A Compact Y-Branch Power Splitter With an Arbitrary Power Splitting Ratio Based on Thin-Film Lithium Niobate Platform, Wei Ke1, Zhongjin Lin1, Xinlun Cai1; 1State Key Laboratory of Optoelectronic Materials and Technologies and School of Electron- ics and Information Technology, Sun Yat-sen Univ., China. A compact power splitter with an arbitrary split ratio for the thin-film lithium niobate platform is proposed . The power splitting ratio can be selected from 0 dB to 15 dB with over 100nm bandwidth .

18:30–21:30 Dinner

Wednesday, 27 O

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asia communications and photonics conference (acp) 2021

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