Lawrence R Chen

Academic title(s): 

Engineer (OIQ)

Salutation: 
Mr
Contact Information
Address: 

Department of Electrical & Computer Engineering
McConnell Engineering Building
3480 University Street, Room 811
Montreal, QC     H3A 0E9
Canada

Phone: 
514-398-1879
Email address: 
lawrence.chen [at] mcgill.ca
Department: 
Department of Electrical and Computer Engineering
Degree(s): 

BEng, MASc, PhD

Media guide subjects: 
Fiber optic communications, photonic integration, broadband communications
Courses: 

FACC 100 Introduction to the Engineering Profession
FACC 400 Engineering Professional Practice
ECSE 206/306 Fundamentals of Signals and Systems
ECSE 540 Photonic Devices and Applications

Position: 
Professor
Research areas: 
Photonic Systems
Awards, honours, and fellowships: 

Fellow, Optical Society of America

Selected publications: 

Invited papers

  1. L. R. Chen, “Silicon photonics for microwave photonics applications,” IEEE/OSA Journal of Lightwave Technology, Special Issue on Selected Papers from OFC (Invited and Top Scored), vol. 35, no. 4, pp. 824-835 (2017).
  2. L. R. Chen, “Subwavelength grating waveguide devices in silicon-on-insulators for integrated microwave photonics,” Chinese Optics Letters, Special Issue on Microwave Photonics, vol. 15, no. 1, 010004 (2017).
  3. J. Wang, I. Glesk, and L. R. Chen, “Subwavelength grating devices in silicon photonics,” Science Bulletin, vol. 61, no. 11, pp. 879-888 (2016).
  4. L. R. Chen, “Chirped microwave and millimeter wave pulse generation based on optical spectral shaping and wavelength-to-time mapping in silicon photonics,” Optics Communications, Special Issue on Integrated Microwave Photonics, vol. 373, pp. 70-81 (2016).
  5. L. R. Chen, “Generating UWB and microwave waveforms using silicon photonics” IEICE Transactions on Electronics, Special Section on Microwave Photonics, vol. E98-C, no. 8, pp. 752-763 (2015).

Recent papers

  1. M. Rezagholipour Dizaji, C. J. Krückel, A. Fülöp, P. A. Andrekson, V. Torres-Company, and L. R. Chen, “Silicon-rich nitride waveguides for broadband nonlinear signal processing,” Optics Express, vol. 25, no. 11., pp. 12100-12108 (2017).
  2. M. Ma, R. Adams, and L. R. Chen, “Integrated photonic chip enabled simultaneous multi-channel ultra-wideband radio frequency spectrum analyzer,” IEEE/OSA Journal of Lightwave Technology, vol. 35, no. 13, pp. 2622-2628 (2017).
  3. C. Jia, B. Shastri, P. R. Prucnal, M. Saad, and L. R. Chen, “Simultaneous Q-switching of a Tm3+:ZBLAN fiber laser at 1.9 mm and 2.3 mm using graphene,” IEEE Photonics Technology Letters, vol. 29, no. 4, pp. 405-408 (2017).
  4. H. Kishikawa, N. Goto, and L. R. Chen, “All-optical wavelength preserved modulation format conversion from PDM-QPSK to PDM-BPSK using FWM and interference,” IEEE/OSA Journal of Lightwave Technology, vol. 34, no. 23, pp. 5505-5515 (2016).
  5. M. Ma and L. R. Chen, “Harnessing mode-selective nonlinear optics for on-chip multi-channel all-optical signal processing,” APL Photonics, vol. 1, no. 8, 086104 (2016).
  6. C. Jia, B. Shastri, N. Abdukerim, M. Rochette, P. R. Prucnal, M. Saad, and L. R. Chen, “Passively synchronized Q-switched and mode-locked dual-band Tm3+:ZBLAN fiber lasers using a common graphene saturable absorber,” Scientific Reports, vol. 6, 36071 (2016).
  7. B. Naghdi and L. R. Chen, “Silicon photonic contra-directional coupler using subwavelength grating waveguides,” Optics Express, vol. 24, no. 20, pp. 23429-32438 (2016).
  8. R. Ashrafi, J. Wang, R. Adams, I. Glesk, I. Gasulla, J. Capmany, and L. R. Chen, “Subwavelength grating enabled on-chip ultra-compact optical true time delay line,” Scientific Reports, vol. 6, 30325 (2016).
  9. R. Ando, H. Kishikawa, N. Goto, S. Yanagia, and L. R. Chen, “Performance analysis of all-optical wavelength-shift-free format conversion from QPSK to two BPSK tributaries using FWM and interference,” IEICE Transactions on Electronics, Special Section on Recent Advances in Photonics Technologies and Their Applications, vol. E99-C, no. 2, pp. 219-226 (2016).
  10. J. Wang and L. R. Chen, “Low crosstalk Bragg grating/Mach-Zehnder interferometer optical add-drop multiplexer in silicon photonics,” Optics Express, vol. 23, no. 20, pp. 26450-26459 (2015).
  11. J. Wang and L. R. Chen, “Multichannel OADM based on cascaded Bragg grating/Mach-Zehnder interferometers in SOI,” IET Electronics Letters, vol. 51, no. 18, pp. 1431-1433 (2015).
  12. C. Jia, X. Liang, M. Rochette, and L. R. Chen, “Alternate wavelength switching in a widely tunable dual-wavelength Tm3+-doped fiber laser at 1900 nm,” IEEE Photonics Journal, vol. 7, no. 4, pp. 1502907 (2015).
  13. R. Ashrafi, M. Rezagholipour Dizaji, L. R. Cortés, J. Zhang, J. Yao, J. Azaña, and L. R. Chen, “Time-delay to intensity mapping based on a second-order optical integrator: application to optical arbitrary waveform generation,” Optics Express, vol. 23, no. 12, pp. 16209-16223 (2015).
  14. J. Wang, R. Ashrafi, M. Rochette, and L. R. Chen, “Chirped microwave pulse generation using an integrated SiP Bragg grating in a Sagnac loop,” IEEE Photonics Technology Letters, vol. 27, no. 17, pp. 1876-1879 (2015).
  15. J. Wang, I. Glesk, and L. R. Chen, “Subwavelength grating Bragg grating filters in silicon-on-insulator,” IET Electronics Letters, vol. 51, no. 9, pp. 712-714 (2015).  Highlighted in issue.
  16. M. Ma, M. Rochette, and L. R. Chen, “Generating chirped microwave pulses based on an integrated distributed Fabry-Pérot cavity in silicon-on-insulator,” IEEE Photonics Journal, vol. 7, no. 2, pp. 5500706 (2015).
  17. M. Chagnon, M. Spasojevic, R. Adams, M. Malekiha, J. Li, D. V. Plant, and L. R. Chen, “Wavelength multicasting of 22 GBaud 16-QAM signals based on four-wave mixing in a silicon nanowire,” IEEE Photonics Technology Letters, vol. 27, no. 8, pp. 860-863 (2015).
  18. R. Adams, R. Ashrafi, J. Wang, M. Rezagholipour Dizaji, and L. R. Chen, “RF-arbitrary waveform generation based on microwave photonic filtering,” IEEE Photonics Journal, vol. 6, no. 5, pp.  5501208 (2014).
  19. M. Rezagholipour Dizaji, I. A. Kostko, B. Shia, C. L. Callender, P. Dumais, S. Jacob, and L. R. Chen, “Reconfigurable time slot interchange based on four wave mixing and a programmable lightwave circuit,” IEEE Photonics Journal, vol. 6, no. 5, pp. 7902907 (2014).
  20. N. L. P. Andrews, A. G. MacLean, J. E. Saunders, J. A. Barnes, H.-P. Loock, C. Jia, K. Ramaswamy, and L. R. Chen, “Quantification of different water species in acetone using a NIR-triple-wavelength fiber laser,” Optics Express, vol. 22, no. 16, pp. 19337-19347 (2014).
  21. J. Wang, I. Glesk, and L. R. Chen, “Subwavelength grating filtering devices,” Optics Express, vol. 22, no. 13, pp. 15335-15435  (2014).  Among top 10 downloads in Jul 2014.
  22. R. Adams, M. Spasojevic, M. Chagnon, M. Malekiha, J. Li, D. V. Plant, and L. R. Chen, “Wavelength conversion of 28 GBaud 16-QAM signals based on four-wave mixing in a silicon nanowire,” Optics Express, vol. 22, no. 4, pp. 4083-4090 (2014).
  23. R. Adams and L. R. Chen, “Photonics research in the college physics classroom – a college and university collaboration,” Physics in Canada, Issue on Physics Education, vol. 2 (2014).
Current research: 

Fiber and integrated optics (silicon photonics for optical and microwave signal processing, optical communications, fiber lasers); engineering education (teaching pedagogies and learning strategies)

Graduate supervision: 

Current trainees

  • Chenglai Jia (PDF)
  • Reza Maram (PDF, starting Sep 2017)
  • Maria-Iulia Comanici (PhD)
  • Behnam Naghdi (PhD)
  • Parisa Moslemi (PhD)
  • Zifei Wang (PhD)
  • Bruno Taglietti (PhD, starting Sep 2017)
  • Jinghao Qiao (MEng)

Recent graduates

  • Mohammad Rezagholipour Dizaji, PhD 2017, Technical staff, Ciena (Ottawa, ON)
  • Ming Ma, PhD 2017, Technical staff, Ericsson (Montreal, QC)
  • Chenglai Jia, PhD 2017, Postdoctoral researcher, McGill University (Montreal, QC)
  • Paul Morin, MEng 2016, Project manager, Excel Group (Toronto, ON)
  • Dr. Reza Ashrafi, 2016, Technical staff, Lumentum (Ottawa, ON)
  • Junjia Wang, PhD 2015, Postdoctoral researcher, University of Cambridge (Cambridge, UK)
  • Yibo Li, MEng 2015, Software developer, Solace (Ottawa, ON)
  • Jia Li, PhD 2014, Technical staff, Ciena (Ottawa, ON)
  • Kishor Ramaswamy, MEng 2014, Application Engineer, Optis (Troy, MI)
  • Guanhui (Ivy) Wang, MEng 2014, Application Engineer, Lumerical (Vancouver, BC)
Professional activities: 

Editor, Elsevier Optics Communications
Associate Editor, IET Electronics Letters
Engineer, Ordre des ingénieurs du Québec

Selected talks and presentations: 

Recent and forthcoming invited presentations

  1. L. R. Chen, Z. Wang, J. Wang, R. Adams, and I. Glesk, “Recent advances in optical signal processing in silicon photonics,” Asia Communications and Photonics Conference, 10-13 November 2017, Guangzhou, China.
  2. L. R. Chen, “Simultaneous multi-channel microwave photonic signal processing,” 32nd International Union of Radio Science General Assembly & Scientific Symposium, 19-26 August 2017, Montreal, QC.
  3. L. R. Chen, M. Ma, and R. Adams, “Harnessing mode-selective nonlinear optics for all-optical and microwave signal processing,” Conference on Lasers and Electro-Optics Pacific Rim/Opto-Electronics and Communications Conference/Photonics Global Conference, 31 July – 4 August 2017, Singapore.
  4. L. R. Chen, “Silicon photonics for microwave photonics applications,” Conference on Optical Fiber Communications (OFC’16), 20-24 March 2016, Anaheim, CA.
  5. L. R. Chen, “Subwavelength grating filters in silicon photonics,” Progress in Electromagnetics Research Symposium (PIERS’15), 6-9 July 2015, Prague, Czech Republic.
  6. L. R. Chen, “Integrated spectral shapers in silicon photonics for generating chirped microwave pulses based on optical spectral shaping and wavelength-to-time mapping,” Progress in Electromagnetics Research Symposium (PIERS’15), 6-9 July 2015, Prague, Czech Republic.
  7. L. R. Chen, "Silicon photonics: enabling microwave photonic systems and applications," CMOS Emerging Technologies Research, 20-22 May 2015, Vancouver, BC.
  8. L. R. Chen, R. Adams, R. Ashrafi, J. Wang, M. Rezagholipour Dizaji, M. S. Hai, and O. Liboiron-Ladouceur, “Photonic integrated circuits for microwave photonics applications,” International Topical Meeting on Microwave Photonics/Asia Pacific Microwave Photonics Conference, 20-23 October 2014, Sapporo, Japan.
  9. L. R. Chen, H.-P. Loock, X. Gu, P. Kung, and M. Saad, “Fiber optic sensing with fiber lasers,” Photonics North, 28-30 May 2014, Montreal, QC.
Language(s) spoken: 
English
French/français