optical data transmission workshop aug. 19, 2010 fermilab ... · work package 1.1 (southern...

Optical Data Transmission Workshop

Optical Data Transmission WorkshopAug. 19, 2010

Fermilab

Fermilab Activities and Planning

Alan G. Prosser

18/19/2010


Optical Data Transmission WorkshopFermilab Activities

Outline:

Versatile Link Common Project

Free Space Optical Transmission

CMS Pixels Phase 1 Upgrades

28/19/2010



Goal: “Development of a general purpose optical link which can cover all envisioned transmission applications: a versatile link”.

Participating Institutions and Organization (by Work Packages):

Work Package 1.1 (Southern Methodist University)Point to Point Architecture and System Engineering

Work Package 2.1 (CERN)Front End Components (Versatile Transceiver)

Work Package 2.2 (Fermilab)Back End Components

Work Package 2.3 (Oxford University)Passive Components

Schedule: (Phased Approach, Nominally 18 Months/Phase)

Phase 1: Proof Of Concept (Completed Sept. 2009)Phase 2: Feasibility Demonstration (Completion Date March 2011)Phase 3: Preproduction Activities (subject for review at TWEPP 2010)

38/19/2010



Work Package 2.2 (FNAL, joined in Sept. 2008):

Responsible for Evaluation of Back End Components:Single Channel SFP+ TRx (850 nm and 1310 nm)Parallel Optical Modules (SNAP12, QSFP, Optical Engines)High Power Transmitters

Activities Include:Testing of candidate componentsSelection of reference components for Versatile Link TeamProcurement of samples of reference componentsSpecifications for qualified componentsPreproduction support for back end components

48/19/2010


Source: “Versatile Link Status Report”Jan TroskaCMS Tracker Upgrade MeetingApril 24, 2009

Versatile Link Components

58/19/2010



Test Equipment Includes:

Tektronix DSA8200 Digital Signal Analyzer80C12-10G Optical Head80A06 Pattern Sync Module80E04 Electrical Sampling ModuleJNB Jitter Analysis Software

JDSU MAP-200 Multi Application Platform850 nm Variable Optical Attenuator1310 nm Variable Optical Attenuator

Altera Stratix II, Stratix IV GT Signal Integrity Kits (up to 10 Gbps)

SFP+ Evaluation Boards from SMU

VBERT Test System from SMU

68/19/2010


Transmitter Measurements Receiver Measurements

Radar Plots

Versatile Link SFP+ Transceiver Measurements

Data Collected at:

5 Gbps6.25 Gbps10 Gbps

78/19/2010


Parallel Optical Engine Transceiver (4 channels, 6.25 Gbps/channel)

SNAP12 Transmitter (12 channels, 2.7 Gbps/channel)

SFP+ Single Channel Transceiver (10 Gbps)

• Off the shelf and prototype devices• High speed, parallel communications

Parallel Optics – Package Evolution

88/19/2010


Parallel Optics @10 Gbps/Channel

4 Channel TRx Parallel Optical Engine Evaluation Kit from Tyco (Zarlink)Successfully tested at 10 Gbps on each channel

98/19/2010



Next Steps:

SFP+

Develop detailed specifications for SFP+ TRx

Additional testing (thermal, noise)

Parallel Optics

Continue Evaluation of Evolving Technology

Develop demonstration hardware with FPGA ( TCA platform)

Develop specifications for candidate devices

High Power Transmitters

Investigate higher power options in commercially available components

Phase III

Topic for discussion at TWEPP 2010 (next month)

108/19/2010


0.000

0.100

0.200

0.300

0.400

0.500

0.600

1400 1450 1500 1550 1600

Tra

ns

mis

sio

n

Wavelength (nm)

Measured Transmission Spectrum of Silicon (IC grade doped)

10 Gb/s Optical

Transmitters at different

wavelengths

Silicon Detectors

10Gb/s Optical Receivers

~10-50cm

~50-100 cm

~100-150 cm

Beam Line Center

• Optical fibers removed from detector volume• Transmission through free space or silicon

Cable-less Free Space Optical Data Transmission

118/19/2010


Lens Lens

SFP+ 10 Gbps Tx 1310 nm

SFP+ 10 Gbps Rx 1310 nm

LVDS Electrical Bit Stream

LVDS Electrical Bit

Stream~2 mm Si ~2 mm Si

= 1310 nm

Tektronix DSA8200 with Jitter Analysis

Stratix FPGA-Based BER Testing Board

Single-Mode Fiber

Multi-Mode Fiber

cm

cm

Multi-Mode Fiber

Tx

Rx

Single Wavelength Free-Space Transmission Testing

100 m fiber spool

128/19/2010


Single Wavelength Free-Space Transmission Testing

Output ofSFP+

Transceiver

Output of100 m

MultimodeFiber after

Free Space linkThrough Si

Operated error free for over 48 hours at 10 Gbps 138/19/2010


Lens Lens

CWDM Mux

LVDS Electrical Bit Streams

~2 mm Si ~2 mm Si

FPGA-Based BER Testing Board

Common Fiber

cm

cm

1

2

Common Fiber

CWDM DeMux

Tx

Tx

Tx

Tx

Rx

Rx

Rx

Rx

2

1

SFP TRx ( 1- 4) SFP TRx ( )

LVDS Electrical Bit Streams

CWDM/Free-Space Bit Error Rate Testing

LC

LC

LC

LC

LC

LC

LC

LC

1 = 1470 nm

2 = 1490 nm

3 = 1510 nm

4 = 1530 nm

148/19/2010

CWDM/Free-Space Optics Lab Test

Free-Space Optics Lab Test Bench Free-Space Optics TRx Group

Multi-mode Fiber

Single-mode Fiber (Mux Side)Silicon Slices

Mode Converter

Single-mode Fiber (DeMux Side)TRx Group (4 SFP Devices)SMU Supplied the TRx Boards

Altera Stratix II Signal Integrity Kit

JDSU CWDM Mux and DeMux Units

Operating error free for over 48 hours at 1 Gbps on all 4 four channels 158/19/2010


CMS Pixels Phase One OptoHybrid Approach

168/19/2010


Space Requirements Appear to Be Met with Existing Commercial TOSA Technology

Additional Devices Being Considered (Smaller Form Factor)

Plan is to Leverage Expertise From Versatile Links


178/19/2010

Optical Data Transmission Workshop**From “Qualification Test Results for the CMS Analog Optohybrids”, M. Friedl et. al., 16 July, 2004

Optical And Electrical Characterization Results**

Characterization of:

1. Optical Performance2. Electrical Performance3. Thermal Characteristics4. Magnetic Field Tolerance5. Irradiation Test Results

CMS Pixels Phase One OptoHybrid Test Program

188/19/2010


Other Activities:

Testing of SNAP12 Format 1310 Array Receivers (FED Interface)

Evaluation of 1310 nm VCSEL TOSAs


198/19/2010

optical data transmission workshop aug. 19, 2010 fermilab ... · work package 1.1 (southern...

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