Lawrence R Chen



Department of Electrical and Computer Engineering

 

Photo of Lawrence R Chen

Professor - Department of Electrical and Computer Engineering


McConnell Engineering Building, Rm 811 [Map]
3480 rue University Montreal Quebec Canada
Montreal, Quebec
H3A 0E9
 
 
Email

External website 
 


PhD University of Toronto, Electrical and Computer Engineering, 2000
MASc University of Toronto, Electrical and Computer Engineering, 1997
BEng McGill University, Electrical Engineering and Mathematics, 1995

 

Teaching (2014-2015)

I will be on sabbatic leave and will not be teaching any courses.

Teaching (courses taught in the past 6 years)

FACC 100 Introduction to the Engineering Profession

ECSE 304 Signals and Systems 2

ECSE 306 Fundamentals of Signals and Systems

ECSE 430 Photonic Devices and Systems

ECSE 492 Optical Communications Laboratory

ECSE 515 Optical Fiber Communications

ECSE 571 Optoelectronics Devices

ECSE 596 Optical Waveguides

ECSE 680 Topics in Photonics

Research Interests

My general research lies in the areas of optical communications, fiber and integrated optics, and microwave photonics. More specifically, I am interested in active and passive devices in silicon photonics for optical and microwave signal processing. I also have an interest in teaching pedagogy.

Current Research Group Members

Mohammad Rezagholipour Dizaji, PhD student

Maria-Iulia Comanici, PhD student

Junjia Wang, PhD student

Chenglai Jia, PhD student

Ming Ma, PhD student

Ivy Wang, MEng student

Kishor Ramaswamy, MEng student

Yibo Li, MEng student

Recent Graduates and Group Members

Jia Li, PhD 2014, presently with Ciena (Ottawa, ON)

Mina Spasojevic, MEng 2013, presently with Ciena (Ottawa, ON)

Alireza Nezam-alhosseini, visiting PhD student, presently with Sharif University of Technology (Tehran, Iran)

Blaise Frison, MEng 2013, presently with Capmatic (Montreal, QC)

Dr. Abdul Sarmani, PDF, presently with Universiti Putra Malaysia (Serdang Selangor, Malaysia)

Prof. Miguel Muriel, Visiting Professor, Universidad Politecnica de Madrid (Madrid, Spain)

Lu Zhang, MEng 2012, presently with Ciena (Ottawa, ON)

Payman Samadi, PhD 2012, presently with Columbia University (New York, NY)

Tianye Huang, PhD exchange student, presently with Nanyang Technological University (Singapore)

Junjia Wang, MEng 2012, presently with McGill University

Hsin-yu Lu, MEng 2012

Wanjing Peng, PhD exchange student, presently with Beijing Jiaotong University (China)

Dr. Pegah Seddighian, PDF, presently with Kotura (Monterey Park, CA)

Christopher Rodenchuk, MEng 2011 (co-supervised with T. Szkopek), presently with MPB Communications (Montreal, QC)

Hiroki Kishikawa, visiting PhD student, presently with NTT (Japan)

Dr. Victor Torres-Company, PDF, presently with Chalmers University of Technology (Sweden)

Xing Hua Tommy Cai, MEng 2011, presently with Nuance (Montreal, QC)

Maria-Iulia Comanici, MEng 2010, presently with McGill University

Nikolaos Gryspolakis, PhD 2009

Jifang Qiu, PhD exchange student (co-supervised with M. Rochette), presently with Beijing University of Posts and Telecommunications (China)

Kai Sun, MEng 2009 (co-supervised with M. Rochette), presently with Ciena (Ottawa, ON)

Christian Habib, MEng 2009, presently with MDA Space Missions (Montreal, QC)

Alaa Hayder, MEng 2008, presently with Amazon (Seattle, WA)

Dominik Pudo, PhD 2007, presently with the Government of Canada (QC)

Johann Gest, PhD 2007, presently with Ogilvy Renault (Montreal, QC)

David Beitel, MEng 2007, presently at McGill University (Montreal, QC)

Dr. Varghese Baby, PDF, presently with Miller Marusyk Swain (Ottawa, ON)

Recent Invited Presentations

[IC17] L. R. Chen, "Photonic integrated circuits for microwave photonics applications," International Topical Meeting on Microwave Photonics/Asia-Pacific Microwave Photonics Conference, 20-23 October 2014, Sapporo, Japan.

[IC16] 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.

[IC15] L. R. Chen, "Silica and silicon-on-insulator waveguide devices for microwave photonics," Asia Communications and Photonics Conference, Workshop on Microwave Photonics, 12-15 November 2013, Beijing, China.

[IC14] L. R. Chen, "Optical signal processing with planar lightwave circuits," 11th International Conference on Information Science, Signal Processing, and their Applications, 3-5 Juy 2012, Montreal, QC.

[IC13] L. R. Chen, P. Muñoz, R. García-Olcina, and J. Capmany, "Photonic integrated circuits for signal processing in packet-switched networks," IEEE Photonics Society Winter Topical Meetings, 10-12 January 2011, Keystone, CO.

[IC12] L. R. Chen, "Multi-channel and multi-functional optical signal processing for fiber optic communications," International Conference on Optical Communications and Networks, 24-27 October 2010, Nanjing, China.

[IC11] V. Torres-Company, L. R. Chen, J. Lancis, and P. Andres, "Incoherent photonic techniques for RF-AWG," International Topical Meeting on Microwave Photonics, 5-9 October 2010, Montreal, QC.

[IC10] L. R. Chen, "The case for all-optical signal processing in next-generation photonic networks," CMOS Emerging Technologies Workshop, 23-25 September 2009, Vancouver, BC.

[IC9] L. R. Chen, "Development of cost-effective broadband sources for time-domain OCT," 3rd Canadian Optical Coherence Tomography Symposium, 19-22 May 2009, Toronto, ON.

[IC8] L. R. Chen, "Fiber-based approaches for all-optical clock recovery," Asia Optical Fiber Communication & Optoelectonic Conference & Exposition, 29 October-2 November 2008, Shanghai, China.

[IC7] L. R. Chen, "All-optical swapping of spectral amplitude code labels for packet-switched networks," SPIE Optics and Photonics 2008, Image and Signal Processing, 10–14 August 2008, San Diego, CA.

[IC6] J. Hernández-Cordero, L. R. Chen, and M. Rochette, "Highly nonlinear fibers in all-optical modulators," 1st Workshop on Specialty Optical Fibers and Their Applications, 20-22 August, Sao Paolo, Brazil.

[IC5] M. Rochette, L. R. Chen, and K. Sun, "Multiwavelength self-pulsating fiber laser based on cascaded SPM spectral broadening and filtering," Photonics North, 2-5 June 2008, Montreal, QC.

Recent Conference Presentations

[C150] R. Ashrafi, M. Li, J. Azaña, and L. R. Chen, "Coherent optical pulse shaping from incoherent light sources," IEEE Photonics Conference, 12-16 October 2014, San Diego, CA.

[C149] R. Ashrafi, J. Azaña, and L. R. Chen, "Tunable optical arbitrary waveform generation based on time-delay to intensity mapping," IEEE Photonics Conference, 12-16 October 2014, San Diego, CA.

[C148] J. Wang and L. R. Chen, "Bandpass Bragg grating transmission filters and optical add-drop multiplexers on silicon-on-insulator," IEEE Photonics Conference, 12-16 October 2014, San Diego, CA.

[C147] M.-I.Comanici, L. R. Chen, and P. Kung, "Long-gauge distributed sensor for monitoring vibrations," IEEE Photonics Conference, 12-16 October 2014, San Diego, CA.

[C146] C. Jia, K. Ramaswamy, L. R. Chen, A. G. MacLean, N. L. P. Andrews, J. A. Barnes, H.-P. Loock, and M. Saad, "Three-wavelength Tm3+:ZBLAN fiber laser and its applications in water detection," IEEE Photonics Conference, 12-16 October 2014, San Diego, CA.

[C145] J. Wang, J. Flueckiger, L. Chrostowski, and L. R. Chen, "Bandpass Bragg grating transmission filter in silicon-on-insulator", 11th International Conference on Group IV Photonics, 27-29 August 2014, Paris, France.

[C144] 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 planar lightwave circuit," IEEE Photonics Society Summer Topicals Meeting, 14-16 July 2014, Montreal, QC.

[C141] M. Ma and L. R. Chen, "Towards an integrated SPM-based 2R regenerator in SOI with waveguides incorporating Bragg gratings," IEEE Photonics Society Summer Topicals Meeting, 14-16 July 2014, Montreal, QC.

[C143] M. Orjuela-Laverde and L. R. Chen, "Using peer-review as an active learning strategy in a large first year course," Canadian Engineering Education Association Conference, 8-11 June 2014, Canmore, AB.

[C142] L. R. Chen and P. Kung, "How partnership programs have enabled research and development: an example of a successful university-industry partnership/collaboration," Photonics North, 28-30 May 2014, Montreal, QC.

[C141] G. Wang, M. Rezagholipour Dizaji, and L. R. Chen, "Analysis of optical back propagation under non-ideal optical phase conjugation and amplifier noise," Photonics North, 28-30 May 2014, Montreal, QC.

[C140/PDP3] R. Adams, M. Spasojevic, M. Chagnon, M. Malekiha, J. Li, D. V. Plant, and L. R. Chen, "Four wave mixing based wavelength conversion and multicasting of 16-QAM signals in a silicon nanowire," IEEE Photonics Conference, 8-12 September 2013, Bellevue, WA. [POSTDEADLINE PAPER]

[C139] S. A. Nezzam-Alhosseini, L. R. Chen, Q. Zhuge, M. Malekiha, F. Marvasti, and D. V. Plant, "A novel receiver for spectrally efficient direct detection optical OFDM," IEEE Photonics Conference, 8-12 September 2013, Bellevue, WA.

[C138] S. A. Nezzam-Alhosseini, M. Rezagholipour Dizaji, K. Fouli, L. R. Chen, and F. Marvasti, "FWM-based SAC label recognition for optical packet switched networks," IEEE Photonics Conference, 8-12 September 2013, Bellevue, WA.

[C137] R. Adams, J. Li, Z. Saraç, D. Berardo, and L. R. Chen, "Comparing nonlinear fiber and a silicon nanophotonic waveguide for implementing a microwave photonic filter," IEEE Photonics Conference, 8-12 September 2013, Bellevue, WA.

[C136] K. Ramaswamy, C. Jia, M. Dastmalchi, L. R. Chen, and M. Saad, "Dual-band 800/1480 nm Tm3+ :ZBLAN fiber laser," IEEE Photonics Conference, 8-12 September 2013, Bellevue, WA.

[C135] K. Ramaswamy, C. Jia, M. Dastmalchi, B. Frison, A. R. Sarmani, L. R. Chen, and M. Saad, "Dual-wavelength Tm3+ :ZBLAN fiber lasers," Workshop on Specialty Optical Fibers, 28-30 August 2013, Sigtuna, Sweden.

[C134] M. Spasojevic and L. R. Chen, "Tunable optical delay line in SOI implemented with step chirped Bragg gratings and serial grating arrays," Photonics North, 3-5 June 2013, Ottawa, ON.

[C133] J. Li, R. Adams, Z. Saraç, D. Berardo, and L. R. Chen, "A reconfigurable microwave photonic filter based on four wave mixing in a Silicon nanophotonic waveguide," Photonics North, 3-5 June 2013, Ottawa, ON.

[C132] B. Frison, A. R. Sarmani, L. R. Chen, X. Gu, and M. Saad, "Multi-wavelength S-band Tm:ZBLAN fiber lasers," SPIE Photonics West, 2-7 February 2013, San Francisco, CA.

[C131] B. Frison, A. R. Sarmani, L. R. Chen, X. Gu, S. Thomas, P. Long, and M. Saad, "Dual-wavelength lasing around 800 nm in a Tm:ZBLAN fiber laser," IEEE Photonics Conference, 23-27 September 2012, Burlingame, CA.

[C130] J. Li, T. Huang, and L. R. Chen, "Analysis of fiber optical parametric oscillator for high-repetition-rate pulse generation," IEEE Photonics Conference, 23-27 September 2012, Burlingame, CA.

[C129] T. Huang, J. Sun, J. Li, and L. R. Chen, "40 Gb/s all-optical clock recovery using a semiconductor fiber laser and nonlinear optical loop mirror," IEEE Photonics Conference, 23-27 September 2012, Burlingame, CA.

[C128] P. Kung, L. Wang, M.-I. Comanici, and L. R. Chen, "Detection and location of PD activities using an array of fiber laser sensors," International Symposium on Electrical Insulation, 10-13 June 2012, San Juan, Puerto Rico.

[C127] J. Wang and L. R. Chen, "All-optical OOK-to-DPSK modulation format conversion using XPM in HNLF," International Conference on Optical Communications and Networks, 5-7 December 2011, Guangzhou, China.

[C126] J. Li, T. Huang, and L. R. Chen, "Wavelength tunable all-optical clock recovery at 40 Gb/s based on a fiber optical parametric oscillator," IEEE Photonics Conference, 9-13 October 2011, Arlington, VA.

[C125] T. Huang, J. Li, J. Sun, and L. R. Chen, "Photonic UWB signal generation and multicasting using a nonlinear optical loop mirror," IEEE Photonics Conference, 9-13 October 2011, Arlington, VA.

[C124] H. Kishikawa, P. Seddighian, N. Goto, S.-I. Yanagiya, and L. R. Chen, "All-optical modulation format conversion from binary to quadrature phase-shift keying using delay line interferometer," IEEE Photonics Conference, 9-13 October 2011, Arlington, VA.

[C123] T. Huang, J. Li, and L. R. Chen, "40 GHz and 80 GHz mode-locked semiconductor fiber laser using nonlinear polarization rotation in a highly nonlinear fiber," IEEE Photonics Conference, 9-13 October 2011, Arlington, VA.

[C122] J. Li, T. Huang, and L. R. Chen, "40 - 200 GHz pulse train generation in a mode-locked fiber optical parametric oscillator," IEEE Photonics Conference, 9-13 October 2011, Arlington, VA.

[C121] H.-Y. Lu, R. Adams, M. Saad, P. Orsini, R. Burga, and L. R. Chen, "Mechanically induced and cascaded long period gratings in ZBLAN fibers," IEEE Photonics Conference, 9-13 October 2011, Arlington, VA.

[C120] L. Zhang, A. R. Sarmani, M.-I. Comanici, L. R. Chen, X. Gu, and P. Kung, "Monitoring multiple strain sensors based on all-fiber distributed Bragg reflector lasers and wavelength-to-power mapping," IEEE Photonics Conference, 9-13 October 2011, Arlington, VA.

[C119] M. Morsy-Osman, L. R. Chen, and D. V. Plant, "Joint mitigation of laser phase noise and fiber nonlinearity using pilot-aided transmission for single-carrier systems," European Conference on Optical Communications, 18-22 September 2011, Geneva, Switzerland.

[C118] J. Qiu, Z. Yin, K. Sun, L. R. Chen, M. Rochette, J. Wu, L. Zhao, and W. Wang, "Wavelength tolerance of an all-optical multi-logic gate based on XPM in a HNLF," Optoelectronics and Communications Conference, 4-8 July 2011, Kaoshiung, Taiwan.

[C117] H.-Y. Lu, R. Adams, M. Saad, P. Orsini, R. Burga, and L. R. Chen, "Mechanically induced long period gratings in ZBLAN fibers," Information Photonics, 18-20 May 2011, Ottawa, Ontario.

[C116] M.-I. Comanici, L. R. Chen, and P. Kung, "Measurement of dynamic strain using fiber Bragg grating-based laser sensor system," Information Photonics, 18-20 May 2011, Ottawa, Ontario.

[C115] D. Celo, T. Smy, P. Gunupudi, L. R. Chen, P. Samadi, and C. L. Callender, "Thermo-electro-optic simulation of a tunable lattice-form Mach-Zehnder interferometer," Photonics North, 16-18 May 2011, Ottawa, Ontario.

[C114] C. Blanchetiere, C. L. Callender, S. Jacob, C. J. Ledderhof, P. Dumais, D. Celo, L.R. Chen, and P. Samadi, "Thermo-optic silica PLC devices for applications in high speed optical signal processing," Photonics North, 16 - 18 May 2011, Ottawa, Ontario.

[C113] P. Samadi, L. R. Chen, I. Kostko, P. Dumais, C. L. Callender, S. Jacob, B. Shia, "Reconfigurable time-domain demultiplexing of optical signals at 40 Gb/s," Conference on Optical Fiber Communications, 6 - 10 March 2011, Los Angeles, CA.

[C112] P. Samadi, L. R. Chen, C. Callender, P. Dumais, S. Jacob, and D. Celo, "Photonically-assisted RF waveform generation using planar lightwave circuits," IEEE Photonics Society Annual Meeting, 7 - 11 November 2010, Denver, CO.

[C111] P. Seddighian, K. Ramaswamy, and L. R. Chen, "Optical tunable delay for OTDM demultiplexing with reduced component count," International Conference on Optical Communications and Networks, 24 - 27 October 2010, Nanjing, China.

[C110] M.-I. Comanici, L. R. Chen, and P. Kung, "Interrogating fiber Bragg grating sensors based on single bandpass microwave photonic filtering," International Topical Meeting on Microwave Photonics, 5 - 9 October 2010, Montreal, QC.

[C109] B. Hamel-Bissell, V. Torres-Company, and L. R. Chen, "A real-time radio frequency spectrum analyzer," International Topical Meeting on Microwave Photonics, 5 - 9 October 2010, Montreal, QC.

[C108] J. Qiu, L. R. Chen, M. Rochette, and J. Wu, "Study of the influence of polarization-dependent gain on nonlinear polarization rotation in semiconductor optical amplifiers," Optoelectronics and Communications Conference, 5 - 9 July 2010, Sapporo, Japan.

[C107] J.-C. Richard, P. Samadi, L. R. Chen, and Y. K. Lizé, "Polarization dependent formalism of interferometric structures describing DPSK and DQPSK receivers," Conference on Lasers and Electro-Optics (CLEO’10), 16-21 May 2010, San Jose, CA.

[C106/PDP2] P. Muñoz, R. García-Olcina, J. D. Doménech, M. Rius, J. Sancho, J. Capmany, L. R. Chen, C. Habib, X. J. M. Leijtens, T. de Vries, M. J. R. Heck, L. Augustin, R. Notzel, and D. Robbins, "InP monolithically integrated label swapper device for spectral amplitude coded optical packet networks," European Conference on Integrated Optics, 7 - 9 April 2010, Cambridge, UK. [POSTDEADLINE PAPER]

[C105] P. Muñoz, R. García-Olcina, J. D. Doménech, M. Rius, J. Capmany, L. R. Chen, C. Habib, X. J. M. Leijtens, T. de Vries, M. J. R. Heck, L. Augustin, R. Notzel, and D. Robbins, "Multi-wavelength laser based on an arrayed waveguide grating and Sagnac loop reflectors monolithically integrated on InP," European Conference on Integrated Optics, 7 - 9 April 2010, Cambridge, UK.

[C104] P. Seddighian and L. R. Chen, "Regenerative tunable optical delay for phase modulated signals," Conference on Optical Fiber Communications, 21 - 25 March 2010, San Diego, CA.

[C103] P. Samadi, L. R. Chen, I. A. Kostko, P. Dumais, C. L. Callender, S. Jacob, B. Xia, "Generating 20 GHz and 40 GHz pulse trains from a 10 GHz mode-locked laser using a tunable planar lightwave circuit and nonlinear wavelength conversion," Conference on Optical Fiber Communications, 21 - 25 March 2010, San Diego, CA.

[C102/PDP1] V. Torres-Company and L. R. Chen, “Coherent mm-wave arbitrary waveform generator with time-multiplexing capabilities using an incoherent approach,” IEEE Photonics Society Annual Meeting, 4-8 October 2009, Belek-Antalya, Turkey. [POSTDEADLINE PAPER]

[C101] K. Fouli, L. R. Chen, and M. Maier, "Optical reflection monitoring for next-generation long-reach passive optical networks," IEEE LEOS Annual Meeting, 4 - 8 October 2009, Antalya, Turkey.

[C100] T. Cai, L. R. Chen, and M. Rochette, "Tunable 40 GHz mode-locked semiconductor fiber laser using a nonlinear optical loop mirror," IEEE LEOS Annual Meeting, 4 - 8 October 2009, Antalya, Turkey.

[C99] K. Sun, J. Qiu, M. Rochette, and L. R. Chen, "All-optical logic gates (XOR, AND, and OR) based on cross phase modulation in a highly nonlinear fiber," European Conference on Optical Fiber Communications, 20-24 September 2009, Vienna, Austria.

[C98] V. Torres-Company and L. R. Chen, "Arbitrary RF-waveform generator with rapid switching capabilities using the temporal Lau effect," IEEE LEOS Summer Topical Meetings, 20 - 22 July 2009, Newport Beach, CA.

[C97] M.-I. Comanici and L. R. Chen, "Improved AWG-based interrogation system for FBG sensors," Opto-electronics and Communications Conference, 13-17 July 2009, Hong Kong.

[C96] N. Grypolakis and L. R. Chen, "All-optical gain-clamping in fiber optical parametric amplifiers," Opto-electronics and Communications Conference, 13-17 July 2009, Hong Kong.

[C95] T. Cai, R. Adams, L. R. Chen, and M. Rochette, "Characteristics of a semiconductor fiber laser mode-locked using a nonlinear optical loop mirror," Opto-electronics and Communications Conference, 13-17 July 2009, Hong Kong.

[C94] P. Seddighian and L. R. Chen, "Discrete tunable optical delay based on wavelength multi-casting and dispersion," Opto-electronics and Communications Conference, 13-17 July 2009, Hong Kong.

[C93] C. Habib, P. Muñoz, X. Leijtens, L. R. Chen, M. Smit, and J. Capmany, “Design of integrated optics all-optical label swappers for spectral amplitude code label swapping optical packet networks on active/passive InP technology,” 6ª Reunión Española de Optoelectrónica, Màlaga, Spain, 15-17 July 2009.

[C92] N. Gryspolakis and L. R. Chen, "Using gain-clamping to mitigate gain transients in fiber optical parametric amplifiers," Conference on Lasers and Electro-Optics, 31 May - 5 June 2009, Baltimore, MD.

[C91] C. L. Callender, P. Dumais, S. Jacob, C. Blanchetière, C. Ledderhof, P. Samadi, I. Kostko, B. Xia, and L. R. Chen, "Tunable silica-on-silicon planar lightwave circuits for signal processing applications," Photonics North, 24–27 May 2009, Quebec City, Quebec.

[C90] P. Samadi, I. A. Kostko, A. Jain, L. R. Chen, P. Dumais, C. L. Callender, S. Jacob, and B. Xia, "Tunable 6-stage lattice-form Mach-Zehnder interferometer for arbitrary binary code generation at 40 GHz," Conference on Optical Fiber Communications, 22 - 26 March 2009, San Diego, CA.

Recent Publications

[J120] J. Wang, I. Glesk, and L. R. Chen, "Subwavelength grating filtering devices," Optics Express, vol. 22, no. 13, pp. 15335-15435 (2014).

[J119] 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).

[J118] 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).

[J117] L. R. Chen, J. Li, M. Spasojevic, and R. Adams, "Nanowires and sidewall Bragg gratings in silicon as enabling technologies for microwave photonics," Optics Express, Focus Issue on Microwave Photonics, by invitation only, vol. 21, no. 17, pp. 19624-19633 (2013).

[J116] S. A. Nezzam-Alhosseini, M. Rezagholipour Dizaji, K. Fouli, L. R. Chen, and F. Marvasti, "Novel SAC-label recognition for packet-switched networks," IEEE Photonics Journal, vol. 5, no. 4, pp. 6601510 (2013).

[J115] S. A. Nezzam-Alhosseini, L. R. Chen, Q. Zhuge, M. Malekiha, F. Marvasti, and D. V. Plant, "Theoretical and experimental investigation of direct detection optical OFDM transmission using beat interference cancellation receiver," Optics Express, vol. 21, no. 13, pp. 15237-15246 (2013).

[J114] T. Huang, J. Sun, J. Li, and L. R. Chen, "Comparison of nonlinear fiber-based approaches for all-optical clock recovery at 40 Gb/s," Optics Communications, vol. 298-299, pp. 213-221 (2013).

[J113] M. Saad, L. R. Chen, and X. Gu, "Highly reflective fiber Bragg gratings inscribed in Ce/Tm co-doped ZBLAN fibers," IEEE Photonics Technology Letters, vol. 25, no. 11, pp. 1066-1068 (2013).

[J112] M. Spasojevic and L. R. Chen, "Discretely tunable optical delay lines using serial and step-chirped sidewall Bragg gratings in SOI," Electronics Letters, vol. 49, no. 9 (2013).

[J111] J. Li, T. Huang, and L. R. Chen, "A comprehensive study of actively mode-locked fiber optical parametric oscillator for high-speed pulse generation," IEEE/OSA Journal of Lightwave Technology, vol. 31, no. 7, pp. 1120-1131 (2013).

[J110] T. Huang, S. Fu, J. Li, L. R. Chen, M. Tang, P. Shum, and D. Liu, "Reconfigurable UWB pulse generator based on pulse shaping in a nonlinear optical loop mirror and differential detection" Optics Express, vol. 21, no. 5, pp. 6401-6408 (2013).

[J109] B. Frison, A. R. Sarmani, L. R. Chen, X. Gu, and M. Saad, "Dual-wavelength S-band Tm3+:ZBLAN fiber laser with 0.6 nm spacing," Electronics Letters, vol. 49, no. 1, pp. 60-62 (2013).

[J108] L. R. Chen and J. Wang, "All-optical RZ-OOK to RZ-BPSK conversion with multicasting based on XPM in highly nonlinear fiber," Optics Communications, vol. 285, pp. 3459-3465 (2012).

[J107] M.-I. Comanici, L. Zhang, L. R. Chen, X. Gu, L. Wang, and P. Kung, "All-fiber DBR-based sensor interrogation system for measuringacoustic waves," Journal of Sensors, Special Issue on Fiber Optic Sensors, vol. 2012, Article ID 862078 (2012).

[J106] T. Huang, J. Sun, J. Li, and L. R. Chen, "40 Gb/s All-optical clock recovery based on a mode-locked semiconductor fiber laser using nonlinear polarization rotation," IEEE Photonics Technology Letters, vol. 24, no. 8, pp. 682-684 (2012).

[J105] J. Li, T. Huang, and L. R. Chen, "Detailed analysis of all-optical clock recovery at 10 Gb/s based on a fiber optical parametric oscillator," IEEE Journal of Selected Topics in Quantum Electronics, Issue on Nonlinear Optical Signal Processing, vol. 18, no. 2, pp. 701-708 (2012).

[J104] P. Samadi, L. R. Chen, I. A. Kostko, P. A. Dumais, C. L. Callender, S. Jacob, and B. Shia, "Reconfigurable OTDM demultiplexing using a tunable planar lightwave circuit and four wave mixing in highly nonlinear fiber," IEEE Photonics Technology Letters, vol. 24, no. 1, pp. 13-15 (2012).

[J103] M. Morsey-Osman, Q. Zhuge, L. R. Chen, and D. V. Plant, "Joint mitigation of laser phase noise and fiber nonlinearity for polarization-multiplexed QPSK and 16-QAM coherent transmission systems," Optics Express, vol. 19, no. 26, pp. B330-B336 (2011).

[J102] M. Morsey-Osman, Q. Zhuge, L. R. Chen, and D. V. Plant, "Feedforward carrier recovery via pilot-aided transmission for single-channel systems with arbitrary M-QAM constellations," Optics Express, vol. 19, no. 24, pp. 24331-24343 (2011).

[J101] P. Muñoz, R. García-Olcina, C. Habib, L. R. Chen, X. J. M. Leijtens, J. D. Doménech, M. Rius, J. Capmany, T. de Vries, M. J. R. Heck, L. Augustin, R. Notzel, and D. Robbins, "Sagnac loop reflector and arrayed waveguide grating based multi-wavelength laser monolithically integrated on InP," IET Optoelectronics, vol. 5, no. 5, pp.207-210 (2011).

[J100] T. Huang, J. Li, J. Sun, and L. R. Chen, "Photonic generation of UWB pulses using a nonlinear optical loop mirror and its distribution over a fiber link," IEEE Photonics Technology Letters, vol. 23, no. 17, pp. 1255-1257 (2011).

[J99] M. Bolea, J. Mora, L. R. Chen, and J. Capmany, "Highly chirped reconfigurable microwave photonic filter," IEEE Photonics Technology Letters, vol. 23, no. 17, pp. 1192-1194 (2011).

[J98] T. Huang, J. Li, J. Sun, and L. R. Chen, "All-optical UWB signal generation and multicasting using a nonlinear optical loop mirror," Optics Express, vol. 19, no. 17, pp. 15885-15890 (2011).

[J97] P. Muñoz, R. García-Olcina, C. Habib, L. R. Chen, X. J. M. Leijtens, T. de Vries, D. Robbins, and J. Capmany, "Label swapper device for spectral amplitude coded optical packet networks monolithically integrated on InP," Optics Express, vol. 19, no. 14, pp. 13540-13550 (2011).

[J96] P. Samadi, L. R. Chen, C. L. Callender, P. Dumais, S. Jacob, and D. Celo, "RF arbitrary waveform generation using tunable planar lightwave circuits," Optics Communications, Special Issue on Optical Pulse Shaping, Arbitrary Waveform Generation, and Pulse Characterization, vol. 284, no. 15, pp. 3737-3741 (2011).

[J95] J. Li, T. Huang, and L. R. Chen, "Rational harmonic mode-locking of a fiber optical parametric oscillator at 30 GHz," IEEE Photonics Journal, vol. 3, no. 3, pp. 468-475 (2011).

[J94] K. Fouli, L. R. Chen, and M. Maier, "Time-, wavelength-, and code-domain optical reflection monitoring for next-generation access-metro networks," Computer Communications, vol. 34, no. 8, pp. 1011-1021 (2011).

[J93] P. Samadi, I. A. Kostko, A. Jain, B. Shia, C. L. Callender, P. Dumais, S. Jacob, and L. R. Chen, "Tunable lattice-form Mach-Zehnder interferometer for arbitrary binary code generation at 40 GHz," IEEE/OSA Journal of Lightwave Technology, vol. 28, no. 21, pp. 3070-3078 (2010).

[J92] T. Cai and L. R. Chen, "40-80-160 GHz tunable mode-locked semiconductor fiber laser incorporating a nonlinear optical loop mirror," Optics Express, vol. 18, no. 17, pp. 18113–18118 (2010).

[J91] J. Qiu, K. Sun, M. Rochette, and L. R. Chen, "Reconfigurable all-optical multi-logic gate (XOR, AND, and OR) based on cross phase modulation in a highly nonlinear fiber," IEEE Photonics Technology Letters, vol. 22, no. 16, pp. 1199-1201 (2010).

[J90] J. Li and L. R. Chen, "Tunable and reconfigurable multiwavelength fiber optical parametric oscillator with 25 GHz spacing," Optics Letters, vol. 35, no. 11, pp. 1872-1874 (2010).

[J89] P. Seddighian, V. Torres-Company, and L. R. Chen, "Simultaneous demodulation and demultiplexing of multi-rate WDM DPSK signals using a programmable wavelength-selective switch," Optics Express, vol. 18, no. 11, pp. 11657-11663 (2010).

[J88] P. Seddighian and L. R. Chen, "Noise transfer characterization in wavelength conversion based on injection locking in a Fabry-Perot laser," IEEE/OSA Journal of Lightwave Technology, vol. 28, no. 7, pp. 1087-1093 (2010).

[J87] P. Samadi, L. R. Chen, I. A. Kostko, P. Dumais, C. L. Callender, S. Jacob, and B. Shia, "Generating 4x20 GHz and 4x40 GHz pulse trains from a single 10 GHz mode-locked laser using a tunable planar lightwave circuit," IEEE Photonics Technology Letters, vol. 22, no. 5, pp. 281-283 (2010).

[J86] V. Torres-Company and L. R. Chen, "Radio-frequency waveform generator with time-multiplexing capabilities based on multi-wavelength pulse compression," Optics Express, vol. 17, no. 25, pp. 22553-22565 (2009).

[J85] V. Torres-Company and L. R. Chen, "All-fiber joint-transform correlator for time-multiplexed signals," Optics Letters, vol. 34, no. 21, pp. 3385-3387 (2009).

[J84] V. Torres-Company, C. R. Fernandez-Pousa, and L. R. Chen, "Temporal Lau effect: a multi-wavelength self-imaging phenomenon," Optics Letters, vol. 34, no. 12, pp. 1885-1887 (2009).

[J83] K. Sun, M. Rochette, and L. R. Chen, "Output characterization of a self-pulsating and aperiodic optical fiber source based on cascaded regeneration," Optics Express, vol. 17, no. 12, pp. 10419-10432 (2009).

[J82] J. Hernández-Cordero, L. R. Chen, and M. Rochette, "Multi-rate and dual-wavelength semiconductor fiber laser," IEEE Photonics Technology Letters, vol. 21, no. 12, pp. 808-810 (2009).

[J81] P. Seddighian and L. R. Chen, "Independent and simultaneous delay control of two 10 Gb/s channels using a single optical delay element," IEEE Photonics Technology Letters, vol. 21, no. 6, pp. 401-403 (2009).

[J80] V. Torres-Company, J. Lancis, P. Andres, and L. R. Chen, "20 GHz arbitrary radio-frequency waveform generator based on incoherent pulse shaping," Optics Express, vol. 16, no. 26, pp. 21564-21569 (2008).

[J79] M. Rochette, L. R. Chen, K. Sun, and J. Hernández-Cordero, "Multiwavelength and tunable self-pulsating fiber cavity based on regenerative SPM spectral broadening and filtering," IEEE Photonics Technology Letters, vol. 20, no. 17, pp. 1497-1499 (2008).

[J78] J. Mora, L. R. Chen, and J. Capmany, "Single bandpass microwave photonic filter with tuning and reconfiguration capabilities," IEEE/OSA Journal of Lightwave Technology, Special Issue on Microwave Photonics, vol. 26, no. 15, pp. 2663-2670 (2008).

[J77] V. Torres-Company, J. Lancis, P. Andres, and L. R. Chen, "Reconfigurable RF-waveform generation based on incoherent-filter design," IEEE/OSA Journal of Lightwave Technology, Special Issue on Microwave Photonics, vol. 26, no. 15, pp. 2476-2483 (2008).

[J76] C. Habib, V. Baby, L. R. Chen, A. Delisle-Simard, and S. LaRochelle, “All-optical swapping of spectral amplitude code labels using nonlinear media and semiconductor fiber ring lasers,” IEEE Journal of Selected Topics in Quantum Electronics, Issue on Nonlinear Optical Signal Processing, vol. 14, no. 3, pp. 879-888 (2008).

[J75] L. R. Chen and J. C. Cartledge, “Mode-locking in a semiconductor fiber laser using cross-absorption modulation in an electro-absorption modulator and application to all-optical clock recovery,” IEEE/OSA Journal of Lightwave Technology, vol. 26, no. 7, pp. 709-806 (2008).

[J74] D. Beitel, L. Carrion, L. R. Chen, and R. Maciejko, “Development of broadband sources based on SOAs and EDFAs for optical coherence tomography,” IEEE Journal of Selected Topics in Quantum Electronics, Issue on Biophotonics, vol. 14, no. 1, pp. 243-250 (2008).

[J73] D. Pudo, C. R. Fernandez-Pousa, and L. R. Chen, “Timing jitter transfer function in the temporal Talbot effect,” IEEE Photonics Technology Letters, vol. 20, no. 7, pp. 496-498 (2008).

Service to Professional Societies

Editor, Elsevier Optics Communications (2014-present)

Editor in Chief, IEEE Photonics Society Newsletter (2014-present)

Advisory Editorial Board, Elsevier Optics Communications (2008-2014)

Topical Editor, Fiber Optics, Optical Communications, and Lasers, OSA Optics Letters (2008-2014)

Associate Editor (Canada), IEEE Photonics Society Newsletter (2008-2014)

Guest Co-Editor, Special Issue on Optical Pulse Shaping, Arbitrary Waveform Generation, and Pulse Characterization, Elsevier Optics Communications (2011)

OSA Topical Meeting on Bragg Gratings, Photosensitivity, and Poling, Member of the Technical Program Committee, Applications of Gratings and Poled Glass Subcommittee (2010)

Optical Fiber Communications Conference, Optical Processing and Analog Subsystems Subcommittee (2011)

IEEE Photonics Conference, Chair, Optical Networks and Systems Subcommittee (2009-2011)

IEEE-LEOS Summer Topical Meeting on Signal Processing in Optical Communications, Member of the Technical Program Committee (2009)

Optoelectronics and Communications Conference, Member of the Technical Program Committee, Optical Signal Processing Subcommittee (2009)

IEEE Photonics Conference, Member of the Technical Program Committee, Optical Networks and Systems Subcommittee (2007-2008)