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Wei Shi

Professeur agrégé

Wei Shi, professeur adjoint du Département de génie électrique et de génie informatique, est un expert en photonique intégrée et en communication optique. Son groupe développe des systèmes et dispositifs nanophotoniques pour applications en communication et en calcul à débit élevé. Dans ses travaux, il a notamment recours à la technologie de la photonique sur silicium compatible avec CMOS pour manipuler des photons et des électrons sur la même plateforme.

Champs d'intérêts

  • Nanophotonic devices & systems
  • Silicon electronic-photonic integrated circuits
  • Optical communications & interconnects
  • Semicondutor lasers
Wei Shi, professeur au Département de génie électrique et de génie informatique

Link to the Updated Publication list

Publications before 2014

Journal Papers (2008 – 2014)

  • X. Yu, Y. Xiang, J. Berggren, T. Zabel, M. Hammar, N. Akram, W. Shi and L. Chrostowski, “Room-temperature operation of a transistor vertical-cavity surface-emitting laser”, Electronics Letters, vol. 49, no. 3, pp. 208–210.
  • Wei Shi, Han Yun, Wen Zhang, Charlie Lin, Ting Kai Chang, Yun Wang, Nicolas A. F. Jaeger, and Lukas Chrostowsk, “Ultra-compact, high-Q microdisk reflectors”, Optics Express, vol. 20, pp. 21840-21846, 2012. (Among Top 20 Downloads in Integrated Optics from Optics Express in 2013).

Book Chapters

  • X. Wang, W. Shi, and L. Chrostowski, “Silicon photonic Bragg gratings”, in High-Speed Photonics Interconnects, L. Chrostowski and K. Iniewski, Eds., CRC Press, 2013, Chapter 3 (pp. 51-84).
  • W. Shi, L. Chrostowski, T. Baehr-Jones, D. Ran, et al., “Modulators”, in II Silicon Photonics - Active Devices, Silicon Photonics, L. Chrostowski and M. Hochberg, 2012, Chapter 7. 

 Conference Publications (2008 – 2014)

  • Qiuhang Zhong, Wei Shi, Yun Wang, Lukas Chrostowski, and David V. Plant, "An Ultra-Broadband Fiber Grating Coupler with Focusing Curved Subwavelength Structures", OFC 2014.
  • Wei Shi?, Venkat Veerasubramanianb, David V. Plantb, Nicolas A. F. Jaegerc, and Lukas Chrostowskic, “Silicon photonic Bragg-grating couplers for optical communications”, SPIE Photonics West 2014, San Jose, California USA, California, USA, 02/2014 (Invited).
  • H. Yun, W. Shi, L. Chrostowski, N. Jaeger, “2x2 Adiabatic 3-dB Coupler on Silicon-on-Insulator Rib Waveguides”, Proceedings of SPIE Volume 8915, 89150V, Photonics North, Ottawa, Canada, 06/2013.
  • Wei Shi?, Han Yun, Charlie Lin, Xu Wang, Jonas Flueckiger, Nicolas Jaeger, and Lukas Chrostowski, “Silicon CWDM Demultiplexers Using Contra-Directional Couplers”, CLEO: Science and Innovations, San Jose, California USA, California, USA, Paper #: CTu3F.5, 06/2013.
  • Wei Shi?, Han Yun, Charlie Lin, Xu Wang, Jonas Flueckiger, Nicolas A. F. Jaeger, and Lukas Chrostowski, “Contra-Directional Couplers with Coupler Apodization”, Photonics North, Ottawa, Canada, 06/2013. (Silicon Photonics Student Design Competition Winner, 1st Place, Industry Sponsored)
  • S. T. Fard?, S. A. Schmidtb, S. M. Grista, J. Flueckigera, W. Shi, X. Wang, D. M. Ratner and L. Chrostowski?, “Label-free silicon photonic biosensors for use in clinical diagnostics”, SPIE Photonics West 2013, San Francisco, California, USA, 2013. (Invited)
  • Xu Wang?, Wei Shi, Michael Hochberg, Kostas Adam, Ellen Schelew, Jeff F. Young, Nicolas A. F. Jaeger, and Lukas Chrostowski, “Lithography simulation for the fabrication of silicon photonic devices with deep-ultraviolet”, IEEE Group IV Photonics Conference, San Diego, USA, Paper #:ThP17, 09/2012.
  • Wei Shi?, Xu Wang, Charlie Lin, Han Yun, Yang Liu, Tom Baehr-Jones, Michael Hochberg, Nicolas A. F. Jaeger, and Lukas Chrostowski, “Electrically Tunable Resonant Filters in Phase-Shifted Contra-Directional Couplers”, IEEE Group IV Photonics Conference, San Diego, USA, Paper #:WP2, 09/2012. (Best Student Poster Award, 2nd Place)
  • Wei Shi?, Mark Greenberg, Xu Wang, Charlie Lin, Nicolas A. F. Jaeger, and Lukas Chrostowski, “Single-band add-drop filters using anti-reflection, contradirectional couplers”, IEEE Group IV Photonics Conference, San Diego, USA, Paper #: WA7, 09/2012.
  • Wei Shi?, Han Yun, Ting Kai Chang, Wen Zhang, Charlie Lin, Nicolas A. F. Jaeger, Lukas Chrostowski, “Differential measurement of transmission losses of integrated optical components using waveguide ring resonators”, Proc. SPIE 8412, Photonics North 2012, 84120R, 2012. (Best Student Poster Award)
  • Michael Gad?, Wei Shi, Lukas Chrostowski, and Nicolas A. F. Jaeger, “A ring resonator optical amplitude modulator using coupling control via carrier injection in the coupler”, Proc. SPIE 8412, Photonics North 2012, 84121B, 2012.
  • Lukas Chrostowski?, Samantha Grist, Jonas Flueckiger, Wei Shi, Xu Wang, Eric Ouellet, Han Yun, Mitch Webb, Ben Nie, Zhen Liang, Karen C. Cheung, Shon A. Schmidt, Daniel M. Ratner, and Nicolas A. F. Jaeger, “Silicon photonic resonator sensors and devices”, Proceedings of SPIE Volume 8236; Laser Resonators, Microresonators, and Beam Control XIV, 01/2012. (Invited)
  • H. Yun?, W. Shi, X. Wang, L. Chrostowski, and N. A. F. Jaeger, “Dumbbell Microring Reflector”, Photonics North 2012, Montreal, QC, Canada, 06/06/2012.
  • W. Shi, X. Wang, W. Zhang, H. Yun, N. A. F. Jaeger, and L. Chrostowski?, “Integrated microring add-drop filters with contradirectional couplers ”, CLEO (Conference on Lasers and Electro-Optics) 2012, San Jose, USA, p. JW4A.91, 05/2012.
  • W. Shi?, X. Wang, H. Yun, W. Zhang, N. A. F. Jaeger, and L. Chrostowski, “Integrated silicon contradirectional couplers: modeling and experiment”, SPIE Photonics Europe, Brussels, Belgium, Paper #: 8424-82, 04/2012.
  • Yu Xiang?, Wei Shi, Xingang Yu, Muhammad N. Akram, Lukas Chrostowski, Jesper Berggren, and Mattias Hammar, “Development of epitaxially regrown transistor vertical-cavity surface-emitting lasers”,. Paper #: 8432-78, 04/2012.
  • X. Wang?, W. Shi, S. Grist, H. Yun, N. A. F. Jaeger, and L. Chrostowski, “Narrow-Band Transmission Filter using Phase-Shifted Bragg Gratings in SOI waveguide”, IEEE Photonics Conference, p. ThZ1, 10/2011.
  • H. Yun?, W. Shi, X. Wang, L. Chrostowski, N. A. F. Jaeger, “Design of a Microring Reflector with a Dumbbell Structure”, 15th Canadian Semiconductor Science and Technology Conference, Vancouver, Canada, 08/2011.
  • X. Wang?, W. Shi, R. Vafaei, N. A. F. Jaeger, L. Chrostowski, “Silicon-on-Insulator Bragg Gratings Fabricated by Deep UV Lithography”, IEEE Asia Communications and Photonics Conference, Shanghai, China, 12/2010.
  • W. Shi, B. Faraji, M. Greenberg, J. Berggren, Y. Xiang, M. Hammar, L. Chrostowski?, “Self-consistent modeling of a transistor vertical-cavity surface-emitting lasers”, 10th International Conference on Numerical Simulation of Optoelectronic Devices, p. TuC1, Atlantic, NJ, USA, 09/2010 (Invited).
  • W. Shi?, R. Vafaei, M. A. G. Torres, N. A. F. Jaeger, L. Chrostowski, “Ring-Resonator Reflector with a Waveguide Crossing”, International Conference on Optical MEMS and Nanophotonics, Sapporo, Japan, 08/2010.
  • Y. Lin, W. Shi, J. Li, T.-C. Chang, J.-S. Park, J. Hydrick, Z. Duan, M. Greenberg, J. Florenza, L. Chrostowski, G. Xia?, “Monolithic integration of AlGaAs distributed Bragg reflectors on virtual Ge substrates via aspect ratio trapping”, International SiGe Technology and Device Meeting, Sweden, 05/2010.
  • W. Shi?, B. Faraji, L. Chrostowski, “Numerical investigation of the effect of base doping density in transistor VCSELs”, IEEE Asia Communications and Photonics Conference, p. TuB3, Shanghai, China, 11/2010.
  • W. Shi, Z. Duan?, R. Vafaei, N. Rouger, B. Faraji, L. Chrostowski, “Simulation of a 1550 nm InGaAsP-InP transistor laser”, Photonics and Optoelectronics Meetings, SPIE proceedings 7516, pp. 75160P (1-9), 2009.
  • W. Shi?, L. Chrostowski, B. Faraji, “Voltage controlled operation of a transistor vertical cavity surface emitting laser”, 21st IEEE International Semiconductor Laser Conference, Sorrento, Italy, 09/2008.
  • L. Chrostowski?, W. Shi, “Proposal for coupled-cavity injection-locked semiconductor ring lasers”, IEEE Semiconductor Workshop, San Jose, California, US, 2008.
  • B. Faraji?, W. Shi, D. L. Pulfrey, and L. Chrostowski, “Small-signal modeling of the transistor laser in common-emitter and common-base configurations”, LEOS 2008 Annual Meeting Program, p. WFF 3, 2008.

We have immediate openings for Graduate Students (Masters and PhD) at the Center of Optics, Photonics, and Lasers (COPL), Université Laval, a world-class research center in optics and photonics. Opportunities also exist for undergraduate students who are motivated to conduct research in integrated photonics.

Our research focuses on integrated photonic devices and systems for high-speed optical communications, especially on the following aspects: 

  • Silicon photonics: design and characterization of fundamental photonic components (e.g., nano-/micro-cavity resonators and nanophotonic Bragg gratings), using advanced CMOS-compatible photonic processes, for manipulation of photons and electrons on the same platform
  • Large-scale electronic-photonic integrated circuits for chip-scale systems, e.g., on-chip optical interconnects for high-performance computing
  • Integrated optical modulators and transmitters for advanced modulation formats, e.g., QPSK and QAM, for next-generation optical and wireless communications systems
  • Novel solutions for optical sources on silicon


Joining my group: WHAT TO EXPECT

  • Innovation opportunities & research flexibility 
  • Millions $ facilities & equipment
    • Advanced nanophotonics characterization system
    • High-end coherent optical transmission testbed (400 Gb/s)
    • Access to state-of-the-art CMOS-photonics fabrication processes
  • Inspiring, collaborative environment
    • Work close with the PI & other group members
    • Optical Communication Lab: 3 professors & over 20 students
    • COPL: a strategic cluster in optics and photonics
  • Safe, beautiful campus & city!


If you are interested, please send your CV to


  • PhD – The University of British Columbia, 2012
  • M.A.Sc. – Shenzhen University, 2007
  • B.Sc. – Huazhong University of Science and Technology, 2004