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Sébastien Loranger
Bacc. (Poly), M. Sc. A. (Poly), Ph.D. (Poly)

Phone: (514) 340-4711 Ext. 3326 Fax: (514) 340-4078 Room: M-6025
Primary sphere of excellence in research
Information and Communication Technologies
Secondary sphere(s) of excellence in research
Industry of the Future and Digital Society

Research interests and affiliations

Research interests
  • Optical fiber components and lasers
  • Optoelectronics and nonlinear optics
  • Development of optical sensors and optical fiber sensors
  • Distributed sensing system optimisation and application
  • Bragg gratings and photonic crystals
  • Waveguide and microstructure laser writing
  • Integrated photonics: integration of optical frequencies and THz in single platforms
  • THz photonic crystals
  • Application of photonic technologies (ex: LIDAR).
Expertise type(s) (NSERC subjects)
  • 2011 Optical materials
  • 2502 Electromagnetics, compatibility and interference
  • 2505 Photonic devices and networks
  • 2507 Communications systems
  • 3110 Optics (see also photon devices 2505)
  • 3111 Lasers
  • 3112 Photonics
  • 3306 Optical properties


Recent publications
Conference paper
Montaut, N., Roztocki, P., Yu, H., Sciara, S., Chemnitz, M., Jestin, Y., MacLellan, B., Fischer, B., Kues, M., Reimer, C., Cortes, L. R., Wetzel, B., Zhang, Y., Loranger, S., Kashyap, R., Cino, A., Chu, S. T., Little, B. E., Moss, D. J., ... Morandotti, R. (2023, July). Scalable Quantum Signal Processing with Integrated Photonics and Fiber-based Modules [Paper]. 23rd International Conference on Transparent Optical Networks (ICTON 2023), Bucharest, Romania (4 pages).


Sébastien Loranger graduated from his PhD at Polytechnique Montréal in Engineering Physics. He then did a post-doctoral fellowship at the renowned Max-Planck Institute in Erlangan, Germany, after which he went to acquire some industrial experience as a R&D researcher at Photonova Inc. and ITF Technologies before joining Polytechnique as a professor.


  • ELE3500 : Electromagnetic waves
  • ELE8508 : Fundamental concepts in photonics


Supervision at Polytechnique


  • Ph.D. (1)

    • Jafari, Foroogh. High power laser combiner and photonic devices for space applications.