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Lawrence R Chen

Academic title(s): 

Academic Lead and Faculty Scholar, ELATE (Enhancing Learning and Teaching in Engineering)

Engineer (OIQ)

Lawrence R Chen
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

Fields: 
Fiber optic communications, photonic integration, broadband communications
Fiber Optic transmission systems, Optical Interconnects, Silicon Photonics
Component development for data communications, photonics integrated circuits, optical subsystems, high-speed interconnects
Areas of expertise: 

Optical communications, optical signal processing, microwave photonics, silicon photonics, engineering education

Courses: 

FACC 100 Introduction to the Engineering Profession (F15, F17, F19, F20, W23, F23, W25)

FACC 400 Engineering Professional Practice (W17)

ECSE 206 Introduction to Signals and Systems (W18, F18, W20, W21, W23, F23, F24)

ECSE 430 Photonic Devices and Systems (F18)

ECSE 540 Photonic Devices and Applications (W17, F18)

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

IEEE Canada J. M. Ham Outstanding Engineering Educator Award, for outstanding contributions to student learning in engineering through teaching, curriculum development, pedagogical change, research, and community building, 2022

Principal's Prize for Excellence in Teaching (Full Professor), McGill University, 2021

SALTISE (Supporting Active Learning and Technological Innovation in Studies of Education) Best Practices and Pedagogical Innovators Award, 2015

Fellow, Optica (formerly Optical Society of America), for contributions to optical fiber communications, in particular fiber Bragg gratings, optical code-division multiple access and pulse shaping, 2012 

SYTACom Graduate Supervision Award, 2007

Selected publications: 

Invited papers

  1. H. Sun, B. Taglietti, Y. Wang, and L. R. Chen, "Integrated subwavelength grating waveguide Bragg gratings for microwave photonics," IEEE/Optica Journal of Lightwave Technology, Special Issue on Microwave Photonics, vol. 40, no. 20, pp. 6636-6649 (2022).
  2. H. Sun, M. Khalil, Z. Wang, and L. R. Chen, "Recent progress in integrated electro-optic frequency comb generation," IOP Journal of Semiconductors, Special Issue on Semiconductor Optoelectronic Circuits, vol. 42, no. 4, 041301 (2021).
  3. L. R. Chen, J. Wang, B. Naghdi, and I. Glesk, "Subwavelength grating waveguide devices for telecommunications applications," IEEE Journal of Selected Topics in Quantum Electronics, Issue on Metamaterial Photonics and Integration, vol. 25, no. 3, 8200111 (2019).
  4. R. Maram, S. Kaushal, J. Azana, and L. R. Chen, "Recent trends and advances in silicon-based integrated microwave photonics," MDPI Photonics, vol. 6, no. 1, 13 (2019).
  5. L. R. Chen, M.-I. Comanici, P. Moslemi, J. Hu, and P. Kung, "A review of recent results on simultaneous interrogation of multiple fiber Bragg grating-based sensors using microwave photonics," MDPI Applied Sciences, Special Issue in Microwave Photonics 2018, vol. 9, no. 2, 298 (2019).
  6. L. R. Chen, P. Moslemi, Z. Wang, M. Ma, and R. Adams, "Integrated microwave photonics for spectral analysis, waveform generation, and filtering," IEEE Photonics Technology Letter, Special Issue on Integrated Microwave Photonics, vol. 30, no. 21, pp. 1838-1841 (2018).
  7. L. R. Chen, P. Moslemi, M. Ma, and R. Adams, "Simultaneous multi-channel microwave photonic signal processing," MDPI Photonics, Special Issue on Microwave Photonics, vol. 4, no. 4, 44 (2017).
  8. 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).
  9. 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).
  10. J. Wang, I. Glesk, and L. R. Chen, “Subwavelength grating devices in silicon photonics,” Science Bulletin, vol. 61, no. 11, pp. 879-888 (2016).
  11. 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).
  12. 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. Y. Xie, M. KHalil, J. Liu, Z. Lu, P. J. Poole, J. Weber, G. Liu, M. Rahim, and L. R. Chen, "An instantaneous frequency measurement system based on quantum dash mode-locked laser," Optics Express, accepted (2024).
  2. M. Khalil, Y. Xie, E. Berikaa, J. Liu, Z. Lu, P. J. Poole, G. Liu, J. Weber, D. V. Plant, and L. R. Chen, "Performance of quantum-dash mode-locked lasers (QD-MLLDs) for high-capacity coherent optical communications," Optics Express, vol. 32, no. 1, pp. 217-229 (2024).
  3. A. Rabiepoor, S. Alireza Nezamalhosseini, and L. R. Chen, "IRS-assisted vehicular visible light communication systems: channel modeling and performance analysis," Applied Optics, vol. 63, no. 1, pp. 167-178 (2024).
  4. Y. Xie, M.Khalil, H. Sun, S. Moosabhoy, J. Liu, Z. Lu, P. J. Poole, J. Weber, L. R. Chen, "Photonic beamforming using quantum-dash mode-locked frequency comb laser," Applied Optics, vol. 62, no. 32, pp. 8696-8701 (2023).   
  5. A. Chan, M. Khalil, Kh. A. Shahriar, D. V. Plant, L. R. Chen, and R. Kuang, "Encryption in phase space for classical coherent optical communications," Scientific Reports, vol. 13, 12965 (2023).
  6. L. R. Chen, K. B. Downey, and E. L. Whitteck, "A multi-institutional alternative assessment faculty learning community:  supporting teaching in higher education," CourseSource 10, https://doi.org/10.24918/cs.2023.35 (2023).
  7. Z. Wei, C. Nacke, M. Khalil, H. Sun, K. Stitt, J. Lougheed, L. R. Chen, and D. V. Plant, "AL-aided AMC in a multi-user white-light OFDMA VLC system over a light-diffusing fiber loop," Optics Letters, vol. 48, no. 14, pp. 3661-3664 (2023).
  8. M. J. Zakavi, S. A. Nexamalhosseini, and L. R. Chen, "Multiuser massive MIMO-OFDM for visible light communication systems," IEEE Access, vol. 11, pp. 2259-2273 (2023).
  9. M. A. Amirabadi, S. A. Nezamalhosseini, M. H. Kahaei, and L. R. Chen, "Improving MDM-WDM optical network performance via optimized power allocation using Gaussian noise model," Optical Fiber Technology, vol. 75, 103187 (2023).
  10. H. Sun and L. R. Chen, "Polarization independent Bragg gratings using tilted subwavelength grating waveguide Bragg gratings," Optics Express, vol. 31, no. 2, pp. 1214-1223 (2023).
  11. M. Khalil, H. Sun, E. Berikaa, D. V. Plant, and L. R. Chen, "Electrically reconfigurable waveguide Bragg grating filters," Optics Express, vol. 30, no. 22, pp. 39643-39651 (2022).
  12. H. Rabbani, S. A. Nezamalhosseini, L. R. Chen, and A. Beheshti-Shirazi, "Optimal power allocation in serial relay-assisted underwater wireless optical communication systems," IET Optoelectronics, in press (2022).
  13. J. Wang, C. Fang, N. Dong, W. Jiang, Z. Chen, L. R. Chen, and X. Sun, "Ultra-broadband subwavelength grating coupler for bound state in continuum," IEEE Photonics Journal, vol. 14, no. 4, 2735104 (2022).
  14. M. A. Amirabadi, M. H. Kahaei, S. A. Nezamalhosseini, and L. R. Chen, "Joint power and gain allocation in MDM-WDM optical communication networks based on enhanced Gaussian noise model," IEEE Access, vol. 10, pp. 23122-23139 (2022).
  15. M. A. Amirabadi, M. H. Kahaei, S. A. Nezamalhosseini, and L. R. Chen, "Optimal power allocation in nonlinear MDM-WDM systems using Gaussian noise model," IET Optoelectronics, vol. 16, no. 3, pp. 133-148 (2022).
  16. H. Sun, M. Khalil, J. Liu, Z. Lu, P. J. Poole, J. Weber, D. V. Plant, and L. R. Chen, "Reconfigurable microwave photonic filter based on a quantum dash mode-locked laser," Optics Letters, vol. 47, no. 5, pp. 1133-1136 (2022).
  17. S. Zargari, M. Kolivand, S. A. Nezamalhosseini, B. Abolhassani, L. R. Chen, M. H. Kahaei, "Resource allocation of hybrid VLC/RF systems with light energy harvesting," IEEE Transactions on Green Communications and Networking, vol. 6, no. 1., pp. 600-612 (2022).
  18. L. Liu, X. Jin, T. Ning, L. R. Chen, and J. Capmany, "Dual-frequency optoelectronic oscillator incorporating a single cavity and multiband microwave photonic filter," Optics Express, vol. 29, no. 9, pp. 14006-14015 (2021).
  19. H. Sun and L. R. Chen, "Polarization dependent tuning of Bragg reflection enabled through tilted subwavelength grating waveguide Bragg gratings," Optics Letters, vol. 46, no. 6, pp. 1450-1453 (2021).
  20. Y. Wang, H. Sun, M. Khalil, W. Dong, I. Gasulla, J. Capmany, and L. R. Chen, "On-chip optical true time delay lines based on subwavelength grating waveguides," Optics Letters, vol. 46, no. 6, pp. 1405-1408 (2021).
  21. S. A. Nezamalhosseini and L. R. Chen, “Optimal power allocation for MIMO underwater wireless optical communication systems using channel state information at the transmitter,” IEEE Journal of Oceanic Engineering, vol. 46, no. 1, pp. 319-325 (2021).
  22. H. Sun, Y. Wang, and L. R. Chen, "Integrated discretely tunable optical delay line based on step-chirped subwavelength grating waveguide Bragg gratings," IEEE/OSA Journal of Lightwave Technology, Special Issue on Microwave Photonics, vol. 38, no. 19, pp. 5551-5560 (2020).
  23. L. Liu, X. Jin, T. Ning, L. R. Chen, and J. Capmany, "Optical spectral slicing based reconfigurable and tunable microwave photonic filter," IEEE/OSA Journal of Lightwave Technology, Special Issue on Microwave Photonics, vol. 38, no. 19, pp. 5492-5499 (2020).
  24. G. Nemova, X. Jin, L. R. Chen, S. V. Firstov, and O. Sezerman, "Modeling and experimental characterization of a dual-wavelength fiber laser with cascaded cavities," Journal of the Optical Society of America B, vol. 37, no. 5, pp. 1453-1460 (2020).
  25. Z. Wang, M. Ma, H. Sun, M. Khalil, R. Adams, K. Yim, X. Jin, and L. R. Chen, "Optical frequency comb generation using CMOS compatible cascaded Mach-Zehnder modulators," IEEE Journal of Quantum Electronics, Special Issue on European Conference on Integrated Optics, vol. 55, no. 6, pp. 8400206 (2019).
  26. R. Maram, D. Onori, J. Azana, and L. R. Chen, "Discretely programmable microwave photonic filter based on temporal Talbot effects," Optics Express, vol. 27, no. 10, pp. 14381-14391 (2019).
  27. U. A. Korai, Z. Wang, C. Lacava, L. R. Chen, I. Glesk, and M. J. Strain, "A technique for the measurement of picosecond optical pulses using a non-linear fiber loop mirror and an optical power meter," Optics Express, vol. 27, no. 5, pp. 6377-6388 (2019).
  28. Z. Wang, M. Ma, and L. R. Chen, "Integrated optical add-drop multiplexer in SOI based on mode selection and Bragg reflection," IEEE Photonics Technology Letters, vol. 30, no. 24, pp. 2107-2110 (2018).  
  29. P. Moslemi, M. Rochette, and L. R. Chen, "Generating multi-channel chirped microwave waveforms using silicon photonic spectral shapers," IEEE/OSA Journal of Lightwave Technology, vol. 36, no. 23, pp. 5498-5504 (2018).
  30. M.-I. Comanici, J. Hu, P. Moslemi, and L. R. Chen, "A microwave photonic approach for simultaneous interrogation of multiple fiber Bragg grating temperature sensors," Applied Optics, vol. 57, no. 28, pp. 8338-8442 (2018).
  31. B. Naghdi and L. R. Chen, "Silicon photonic four-channel optical add-drop multiplexer enabled by subwavelength grating waveguides," IEEE Photonics Journal, vol. 10, no. 4, pp. 6601510 (2018).
  32. Z. Wang, I. Glesk, and L. R. Chen, "An integrated nonlinear optical loop mirror in silicon photonics for all-optical signal processing," APL Photonics, vol. 3, no. 2, 026102 (2018).
  33. M.-I. Comanici, L. R. Chen, and P. King, "Microwave photonic filter-based interrogation system for multiple fiber Bragg grating sensors," Applied Optics, vol. 56, no. 32, pp. 9074-9078 (2017).
  34. P. Moslemi, L. R. Chen, and M. Rochette, "Simultaneously generating multiple chirped microwave waveforms using an arrayed waveguide Sagnac interferometer," IET Electronics Letters, vol. 53, no. 23, pp. 1534-1535 (2017).
  35. B. Naghdi and L. R. Chen, "Spectral engineering of subwavelength-grating-based contradirectional couplers," Optics Express, vol. 25, no. 21, pp. 25310-25317 (2017).
  36. P. Moslemi and L. R. Chen, "“Simultaneously generating multiple chirped microwave pulses with superimposed FBGs," IEEE Photonics Technology Letters, vol. 29, no. 16, pp. 1387-1390 (2017).
  37. 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).
  38. 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).
  39. 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 um and 2.3 um using graphene,” IEEE Photonics Technology Letters, vol. 29, no. 4, pp. 405-408 (2017).
  40. 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).
  41. 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).  Editor's pick.
  42. 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).
  43. 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).
  44. 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).
  45. 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).
  46. 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).
  47. 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).
  48. 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).
  49. 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).
  50. 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).
  51. 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.
  52. 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).
  53. 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).
  54. 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).
  55. 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).
  56. 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).
  57. 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.
  58. 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).

​Presentations on pedagogy

  1. L. R. Chen, "Student-generated infographics and videos for learning about professional obligations and the impact of engineering on society," American Society for Engineering Education Annual Conference & Exposition, 23-26 June 2024, Portland, OR.
  2. S. Maw, P. Ostafichuk, P. Neufeld, L. Chen, K. Moozeh, B. Frank, C. Jaeger, C. MacGregor, G. McSorley, and J. Grove, "Preliminary employment trajectory findings from a pan-Canadian survey on career motivations and aspirations of undergraduate engineering students," Canadian Engineering Education Associate Conference, 15-19 Jun 2024, Edmonton, AB.
  3. R. Adams and L. R. Chen, "Students' reflections on the impact of paid summer photonics research internships," Conference on Education and Training in Optics and Photonics: ETOP, 15-18 May 2023, Orlando, FL.
  4. L. R. Chen, "Group work on midterm and final exams in the remote teaching and learning context and beyond," International Conference on Education and New Learning Technologies, 4-6 July 2022, Palma de Mallorca, Spain.
  5. L. R. Chen, M. Jacques, and Z. Sobhanigavgani, "On the use of reflective exercises for improving student learning of conceptual and technical problems in engineering," Canadian Engineering Education Association Conference, 9-12 June 2019, Ottawa, ON.
  6. I. El Boijairami, S. Kouthouridis, Z. Sobhanigavgani, M. Jacques, C. Moraes, S. Omelon, M. Driscoll, and L. R. Chen, "Utility and implementation of reflection in distinct types of engineering courses," Canadian Engineering Education Associate Conference, 9-12 June 2019, Ottawa, ON.
  7. L. R. Chen and M. Jacques, "On the use of reflective writing in an introductory photonics course," 15th Conference on Education and Training in Optics and Photonics: ETOP, 21-24 May 2019, Quebec City, QC.  [INVITED]
  8. L. R. Chen and M. Orjuela-Laverde, "Implementing reflective writing in large non-technical engineering courses," Canadian Engineering Education Association Conference, 3-6 June 2018, Vancouver, BC.
  9. R. Adams and L. R. Chen, "Engaging college physics students with photonics research," Proc. SPIE 10452, 14th Conference on Education and Training in Optics and Photonics: ETOP, 29-31 May 2017, Hangzhou, China. 
  10. M. Orjuela-Laverde and L. R. Chen, "Peer review as an active learning strategy in a large first year course," Canadian Engineering Education Association Conference, 8-11 June 2014, Calgary, AB.
  11. 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 (learning mechanisms and learning systems)

Graduate supervision: 

Researchers in engineering education

  • Kennedy Olsen, SURE undergraduate research student
  • Max Wu-Blouin, SURE undergraduate research student
  • Natalie Co, SURE undergraduate research student and undergaduate research assistant
  • Christine Hao, undergraduate research assistant
  • Katia Hwang, undergraduate research assistant 

Current trainees

  • Dr. Nitika Vaish (PDF)
  • Mostafa Khalil (PhD)
  • Yuxuan Xie (PhD)
  • Xi Wang (PhD)
  • Zhuoran Wang (PhD)
  • Ali Roohforouz (PhD)
  • Luyao Xie (MSc)

Recent undergraduate and graduate trainees

  • Sai Gubbala, MSc
  • Thomas Papatheodorakos, BSc, Summer undergraduate research student
  • Bruno Taglietti, PhD, 2023, Optics engineer, ADVA Optical Networking (Ottawa, ON)
  • Hao Sun, PhD, 2022, Postdoctoral researcher, INRS-EMT (Montreal, QC) 
  • Sehr Moosabhoy, 2022 SURE undergraduate research student
  • Adrian Chan, MSc, 2021, Silicon validation engineer, Synopsis (Ottawa, ON)
  • Daniel Hutama, withdrew from MSc to pursue PhD at the University of Ottawa (Ottawa, ON)
  • Dr. Maria-Iulia Comanici, PDF, 2021, O/E Land Inc. (Montreal, QC)
  • Dr. Xian Jin, PDF, 2020
  • Yue Wang, visiting PhD student, 2020, PhD student, Jilin University (China)
  • Ling Liu, visiting PhD student, 2020, PhD student, Beijing Jiaotong University (China)
  • Mostafa Khalil, MSc, 2020, PhD student, McGill University (Montreal, QC)
  • Dr. Reza Maram, PDF, 2019, Technical staff, FONEX data systems inc. (Montreal, QC)
  • Zifei Wang, PhD, 2019, Optics engineer, ADVA Optical Networking (Ottawa, ON)
  • Maria-Iulia Comanici, PhD, 2019, Industrial postdoctoral researcher, O/E Land, Inc. (Montreal, QC)
  • Behnam Naghdi, PhD, 2019, Technical staff, Huawei (Quebec City, QC)
  • Parisa Moslemi, PhD, 2019, Senior test development engineer, Infinera (Sunnyvale, CA)
  • Kathy Yim, BEng, 2019, summer undergraduate research student
  • Jinghao Qiao, MEng, 2018, Developer, Bytedance (Shanghai, China)
  • Mohammad Rezagholipour Dizaji, PhD 2017, Technical staff, Ciena (Ottawa, ON)
  • Ming Ma, PhD 2017, Technical staff, Ericsson (Montreal, QC)
  • Chenglai Jia, PhD and PDF 2017, Engineer, MPB Communications (Montreal, QC)
  • Paul Morin, MEng 2016, Project manager, Excel Group (Toronto, ON)
  • Dr. Reza Ashrafi, 2016, Technical staff, Infinera (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, Infinera (Ottawa, ON)
  • Kishor Ramaswamy, MEng 2014, Application engineer, Optis (Troy, MI)
  • Guanhui (Ivy) Wang, MEng 2014, Application engineer, Lumerical (Vancouver, BC)
Professional activities: 

Member, Technical Program Committee, Optical Fiber Communication Conference, Fiber Devices, Fiber Lasers and Amplifiers, and Nonlinear Waveguides Subcommittee, 2024

Member, Technical Program Committee, IEEE Photonics Conference, Microwave Photonics and Vehicular Optics Subcommittee, 2023

Member, Technical Program Committee, Photonics in Switching and Computing, Photonic Switching Devices, Systems, and Networks Subcommittee, 2023

Member, Technical Program Committee, IEEE International Topical Meeting on Microwave Photonics, 2023

Member, Technical Program Committee, Frontiers in Optics and Laser Science Conference, Fiber Optics and Optical Communications Subcommittee, 2023

Principal Guest Editor, IEEE Journal on Selected Topics in Quantum Electronics, Issue on Photonic Signal Processing (to be published in 2023)

Principal Guest Editor, IEEE Journal on Selected Topics in Quantum Electronics, Issue on Optical Signal Processing (published in 2021)

Guest Co-Editor, IEEE/OSA Journal of Lightwave Technology, Special Issue on Microwave Photonics (published in 2020)

Subject Editor, IET Electronics Letters

Engineer, Ordre des ingénieurs du Québec

Selected talks and presentations: 

Recent invited presentations

  1. L. R. Chen, "Microwave photonic signal processing using a quantum dash optical frequency comb source," Conference on Lasers and Electro-Optics Pacific Rim, 4-9 August 2024, Incheon, South Korea.
  2. L. R. Chen, M. Khalil, Y. Xie, H. Sun, E. Berikaa, M. S. Alam, D. V. Plant, J. Liu, and Z. Lu, "Quantum dash optical frequency comb sources for optical communications and microwave photonics," Photonics North, 12-15 June 2023, Montreal, QC.
  3. L. R. Chen, H. Sun, B. Taglietti, Y. Wang, X. Wang, and S. Moosabhoy, "Silicon photonic subwavelength grating waveguide Bragg gratings for microwave photonic signal processing," IEEE Photonics Conference, 13-17 October 2022, Vancouver, BC.
  4. L. R. Chen, "The path towards integrated microwave photonics," 13th International Conference on Information Optics and Photonics, 7-10 August 2022, Xi'an, China. Keynote
  5. L. R. Chen and H. Sun, "A review of subwavelength grating waveguide Bragg gratings for optical and microwave photonic signal processing," 3rd URSI Atlantic Radio Science Meeting, 29 May-3 June 2022, Gran Canaria, Spain.
  6. L. R. Chen, "Integrated microwave photonics," International Topics Meeting on Microwave Photonics, 15-17 November 2021, Pisa, Italy.
  7. L. R. Chen, "Subwavelength grating waveguide devices for integrated microwave photonics," Optics Frontier:  the 12th International Conference on Information Optics and Photonics, 23-26 July 2021, Xi'an, China.  Keynote
  8. L. R. Chen, "Photonic integrated devices for microwave photonic signal processing," Optoelectronics and Communications Conference, Workshop on Microwave Photonics - Broadband Cognitive Radio Enable by Microwave Photonics, 3-7 July 2021, Hong Kong.
  9. L. R. Chen, "Subwavelength grating waveguide devices in silicon photonics for microwave photonic signal processing," Asia Communications and Photonics Conference, 24-27 October 2020, Beijing, China.
  10. L. R. Chen, "Silicon photonics for optical communications and microwave photonics," Asia Communications and Photonics Conference, 2-5 November 2019, Chengdu, China.
  11. L. R. Chen, "Integrated microwave photonics for waveform generation and filtering," International Conference on Microwave Photonics Technology and Application, 8-10 December 2018, Hangzhou, China.
  12. L. R. Chen, "On-chip devices in silicon photonics for optical and microwave signal processing," Asia Communications and Photonics Conference, 26-29 October 2018, Hangzhou, China.
  13. L. R. Chen, "Advanced integrated devices in silicon photonics for all-optical signal processing," Microoptics Conference, 15-18 Oct 2018, Taipei, Taiwan.
  14. I. Glesk, Z. Wang, and L. R. Chen, "Towards integrated devices for all-optical signal processing in optical networks," SPIE Photonics West, 27 Jan-1 Feb 2018, San Francisco, CA.
  15. L. R. Chen, "Subwavelength grating waveguide filters in silicon photonics," SPIE Photonics West, 27 Jan-1 Feb 2018, San Francisco, CA.
  16. 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.
  17. 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.
  18. 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.
  19. L. R. Chen, “Silicon photonics for microwave photonics applications,” Conference on Optical Fiber Communications (OFC’16), 20-24 March 2016, Anaheim, CA.
  20. L. R. Chen, “Subwavelength grating filters in silicon photonics,” Progress in Electromagnetics Research Symposium (PIERS’15), 6-9 July 2015, Prague, Czech Republic.
  21. 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.
  22. L. R. Chen, "Silicon photonics: enabling microwave photonic systems and applications," CMOS Emerging Technologies Research, 20-22 May 2015, Vancouver, BC.
  23. 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.
  24. 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
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