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McGill Photonic Systems Group. Andrew Kirk Micro and nano-optics Optical interconnects Applications of MEMS. Lawrence Chen Optical amplifiers Fiber lasers Transmission and coding issues. David Plant Optoelectronics VLSI photonics High speed packaging Optical switches.

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Mcgill photonic systems group
McGill Photonic Systems Group

Andrew Kirk

Micro and nano-optics

Optical interconnects

Applications of MEMS

Lawrence Chen

Optical amplifiers

Fiber lasers

Transmission and coding issues

David Plant

Optoelectronics

VLSI photonics

High speed packaging

Optical switches

+ ~ 30 graduate students, research engineers and post-docs

Dominik Pudo [email protected]


Photonics

The PHOTON is to PHOTONics as the ELECTRON is to ELECTRONics.

Three major developments in the recent past are responsible for the rejuvenation of this field:

Invention of the diode laser (1961)

Fabrication of low loss fiber (1970)

Maturing of semiconductor optical devices (1970s to present)

Modern definition of photonics as applied to communications: generation, modulation, transmission, and detection of light.

“Photonics”


Why light for communications

Optical communication

High carrier frequency (1014 Hz)

Low carrier frequency

(Almost) no modulation effects

Distortion of modulated signals

Dielectric waveguides

Conducting waveguides

Low loss

Frequency dependent loss

Small wavelength

Large wavelength

Tight confinement

Bulky

High impedance medium

Low impedance lines

Low power

High power

Why light for communications ?

Electrical transmission lines


Limitations of electrical interconnects the off chip challenge

As data rates increase, electrical interconnects are limited by:

Power

Distortion

Cross-talk

Pin-out capacity

Fundamental: Aspect ratio limit*

Limitations of electrical interconnects: the off-chip challenge

*D.A.B.Miller and H.M.Ozaktas, J.Parallel Distrib. Comput., 41, pp 42-52, 1997


Optical communications

Campus/City/etc. by:

Rack

Shelf

Backplane

Board

Chip

Optical Communications

Recent record:

10 Tbps over 100km

3 Tbps over 7300km

Length

100km

10km

1mm

1cm

1m

10m

100m

1km

10cm

Free-space

optics

Medium distance

Parallel optical interconnect

Long distance

Optical fiber


Research overview 1
Research Overview-1 by:

  • developing ultrafast photonic and fiber optic technologies for broadband telecommunications, optical sensing, and biomedicine.  Specific areas include:

    • Ultrafast Photonic Signal Processing

    • Fiber Amplifiers and Lasers

    • Photonic Networks

    • Microwave Photonics

Generation of a 325 GHz

optical pulse burst


Research overview 2

Parallel Optical Interconnects by:

Free-space optical interconnects

Parallel fiber interconnects

Components for future optical fiber networks

Multiplexers

Switches

Research Overview-2



Clustered system 512 channel parallel optical board to board link

86 mm throw by:

3x6 mm active area

256 channels (bidirectional)

28 channels/mm2

 Clustered optical design

Clustered system: 512 channel parallel optical board to board link*

86 mm

Relay system

Prism

Prism

Glass spacer

Minilens

Microlens array

IC

Detector cluster

VCSEL cluster

*M. Châteauneuf et al, Optics in Computing 2001, pp.64-66.



Research overview 3

Research in micro-optics and MEMS ( Micro-Electro-Mechanical Systems

Free-space micro-optics for optical interconnects

Micro-optics for telecomm systems

Micro-opto-electro-mechanical systems (MOEMS)

Sub-wavelength structured surfaces and devices

Research Overview-3


Mems mirror
MEMS mirror Systems


Clean room and packaging laboratories

1000 sq ft., class 10,000 clean room including a fume hood Systems

High and low power laser systems

Test and measurement equipment supporting 12.5 Gbps digital (BERT, scopes, etc.) and 22 GHz analog (lightwave component analyzer, signal generators, etc.)

Free space and fiber based optics and optomechanics

Wirebonding and packaging

Clean room and packaging laboratories


Fiber optics lab and design software

New fiber optics laboratory Systems

C + L band EDFAs, broadband, DFB, and tunable sources

10 – 40 GHz mode-locked fiber laser

Optical spectrum analyzer

Communication signal analyzer

Polarization diagnostics

Fusion splicer

10 and 40 Gbps modulators; 10 Gbps receivers

Fiber optics lab and design software

  • Software

  • Circuit design

  • Optical/fiber

  • Mechanical

> 3 000 000 $ of equipment



Courses

Undergraduate: Systems

423B: propagation, sources, free-space, detectors

430A: waveguides, photonic devices, network

492A: source, link, simulation, network devices

Courses?

Graduate:

  • 527B: free-space, systems, simulations

  • 571A: laser sources and detectors (O/E – E/O)

  • 596A: waveguides, propagation


Thank you
Thank you! Systems


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