ApplicationsOptical communicationsCoherent networks


Coherent modulators and receivers are key components used in today's optical transmission systems. Our integrated Indium Phosphide IQ Modulator enables 100G DP-QPSK and 200/400G QAM optical transmission for long-haul and metro coherent networks. Thanks to its wide bandwidth, very low Vpi and compact form factor, this optical modulator offers some advantages over more conventional lithium niobate modulators. Our integrated coherent receiver based on silicon photonics is designed to meet the needs of 40G and 100G networks using coherent detection. Designed with SiP technology, our small form factor receiver (CRx-SFF) can be used in CFP and CFP2 coherent modules.

Both static and tunable dispersion modules can be used to emulate chromatic dispersion associated with transmission fiber. Low-loss dispersion emulators can be particularly helpful for dispersion ranges well above 10 000 ps/nm as seen in long-haul systems. Our low-noise semiconductor laser sources, such as the tunable narrow-linewidth laser, can be used as a local oscillator for multilevel modulation format transmission experiments using coherent detection.


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Articles ( See all )

  1. Development of Silicon Photonics Products for Telecom and Datacom - 720 Kb 

    M. Poulin, M.-J. Picard, C. Latrasse, Y. Painchaud*, F. Pelletier, C. Larouche, M. Guy, * Handyem, Quebec, Canada

    Invited Paper, 12th International Conference on Group IV Photonics, August 2015, IEEE

  2. Optical IQ Modulators for Coherent 100G and Beyond - 1979 Kb 

    Gary Wang

    LightWave, Volume 32 NO.2 March/April 2015

  3. Low Loss InP C-Band IQ Modulator with 40 GHz Bandwidth and 1.5V Vπ - 521 Kb

    Gregory Letal(1), Kelvin Prosyk(1), Ron Millett(1), David Macquistan(1), Stephane Paquet(2), Olivier Thibault-Maheu(2), Jean-Frederic Gagne(2), Pierre-Louis Fortin(2), Reza Dowlatshahi(3), Brian Rioux(3), Tony Spring Thorpe(3), Matt Hisko(3), Rubin Ma(3), Ian Woods(1) - (1) TeraXion, Ottawa, Canada, (2) TeraXion, Quebec Canada, (3) Canadian Photonics Fabrication Center, Ottawa, Canada

    OFC 2015 - Contributed Paper, March 2015

Applications notes ( See all )

White papers ( See all )

  1. Narrow-linewidth semiconductor laser - One technique does not fit all - 709.11 Kb - September 2011

    Nicholas Gagnon

  2. Low Phase Noise Laser Improves Coherent Communication R&D - 680.30 Kb - January 2012

    Carl Paquet

  3. Narrow-linewidth semiconductor laser - One technique does not fit all - 709.11 Kb - September 2011

    Nicholas Gagnon