Chulalongkorn University and NICTPhotonics-related joint research and photonic

collaboration lab

Optical-related joint research between Chulalongkorn University and NICT

NICT has been promoting collaborative research on optical-related technologies with the Department of Electrical Engineering of Faculty of Engineering, Chulalongkorn University, Thailand in 2014 by concluding MOU and Joint Research Agreement (CRA).

The main research themes are as follows.

Project 1.1: Novel photonic device and photonic integrated circuits（PIC）Project 1.2: High-resolution radar imaging system at 100 GHz with radio-over-fiber (RoF) and related technologies

Project 2.1: Experiments of 10 Gb/s Optical Access Network with Long Reach and A Large Number of SubscribersProject 2.2: Bidirectional Optical Amplifiers in 10 Gb/s Access Networks using Erbium-Doped Fiber Amplifiers (EDFAs)

for 1550 nm transmission wavelength and Semiconductor Optical Amplifiers (SOAs) for 1300 nm wavelength

Project 3: Performance Comparison between Intensity Modulation and Differential Quadrature Phase Shift Keying(DQPSK) Modulation at 10 Gb/s Data Rate over Long-haul Standard Single Mode Fiber (SSMF)

Project1: Research and development of systems and applications using RoF technology and related innovative optical devices and PICs

Project2: Low-cost, super-efficiency, large-capacity transmission of short-distance networks that make good use of optical amplifiers and their long-distance research

How to proceed with joint research

NICT promotes development of optical devices in Thailand and cooperates in human resource development by accepting graduate students of Chulalongkorn University at NICT in Japan. We are also conducting lab tours and remote lectures that introduce NICT research sites using the WEB.

In Project 1, while discussing the technology including Chiang Mai University and Suranari University, we examined the construction of an environment where NICT can prototype devices and develop optical devices in Thailand. However, we are evaluating the prototype device using the equipment of the joint research lab and the equipment lent to Chiang Mai University.

In Project 2, we will conduct research on optical communication networks in Thailand while discussing with teachers at Chulalongkorn University, and cooperate in human resource development by accepting graduate students from Chulalongkorn University at NICT in Japan. We are also conducting lectures at universities and web labs to introduce NICT research sites and remote lectures using the web.

Photonics-related joint research facility between ChulalongkornUniversity and NICT (photonic collaboration lab)

In advancing joint research between Chulalongkorn University and NICT, we operate a photonic network laboratory equipped with a loan from NICT and a joint research experiment facility by the research facilities of Chulalongkorn University in the 100th Anniversary Engineering Building of Chulalongkorn University.

Research on device and basic technology

Optical network research

Photonic Collaboration Lab: Device/ Basic Technology Research Area

【Characteristic】• Theoretical analysis of new principle optical devices• Device design• Basic evaluation of prototype optical device(Static characteristics / dynamic characteristics)

Optical fiber automatic alignment system for optical device evaluation

Theoretical analysis / device design

Tunable light sourceOptical parts, etc.

Optical device Optical

fiber

Visible / infrared observation system

Automatic alignment control system

Enables consistent optical device research

(Network Infrastructure Laboratory)

Photonic Collaboration Lab: Optical Network Subsystem Research Area

Subsystem / optical transmission experimental system

Optical signal waveform observation

Optical fiber (> 10 km)

Optical spectrum evaluation

Experimental configuration assuming a newly proposed optical networkCommunication

quality evaluation

10Gb/s class signal generation

Optical packet switch etc.

【Characteristic】・ Measurement equipment required for optical transmission experimentsOptical modules such as light source, light modulator, detector, etc.・ Passive optical components, etc.⇒ Completely equipped with various optical components and measuring equipment

Enables 10-40 Gb/s class optical network and transmission experiments

(Photonic NW System Laboratory)

Field trial of CU University Saraburi campus

8cm

CU, NiCT, ENRI and Hitachi Ltd.

2015 July @Churalonkong University Saraburi Campus

[Field experiment of foreign object monitoring radar system using 100 GHz millimeterwave / RoF on airport runway]

Airport runway foreign matter monitoring radar system

Field trial experimental results

Demonstrates 8 cm square foreign object detection at a distance of 60 m

State of PON transmission experiment with student internship at NICT Koganei(March-September 2019)

Collaborative experiment at NICT Koganei (Photonic NW System Laboratory)Project 2.1: Experiments of 10 Gb/s Optical Access Network with Long Reach and A Large Number of Subscribers

In order to expand the communication area of the passive optical network (PON) and accommodate more users, we are jointly researching bidirectional optical amplification technology.

We are studying the adoption of a semiconductor optical amplifier (SOA) as an optical amplifier for the uplink, and are searching for optimum SOA characteristics (gain, noise figure, response characteristics, etc.) from transmission experiments.

(THORLABS)

(THORLABS)

We are jointly researching and developing WDM-PON that employs Wavelength Division Multiplexing (WDM) to increase the capacity of Passive Optical Network (PON) and expand the communication area.

We are trying to increase the capacity and extension of WDM-PON by evaluating the semiconductor optical amplification characteristics of 100 Gbit/s WDM signals using four wavelengths in the 1300 nm band (O band).

State of WDM-PON transmission experiment with student internship at NICT Koganei(August 2019)

Collaborative experiment at NICT Koganei (Photonic NW System Laboratory)Project 2.2: Bidirectional Optical Amplifiers in 10 Gb/s Access Networks using Erbium-Doped Fiber Amplifiers (EDFAs) for 1550 nm transmission wavelength and Semiconductor Optical Amplifiers (SOAs) for 1300 nm wavelength