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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


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    1. 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 dpudo@photonics.ece.mcgill.ca

    2. 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”

    3. 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

    4. 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

    5. Campus/City/etc. 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

    6. Research Overview-1 • 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

    7. Parallel Optical Interconnects Free-space optical interconnects Parallel fiber interconnects Components for future optical fiber networks Multiplexers Switches Research Overview-2

    8. Free-Space Optical Backplane

    9. 86 mm throw 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.

    10. Completed 512 channel bidirectional system

    11. 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

    12. MEMS mirror

    13. 1000 sq ft., class 10,000 clean room including a fume hood 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

    14. New fiber optics laboratory 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

    15. Fiber optics lab

    16. Undergraduate: 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

    17. Thank you!