McGill University >> Department of Electrical & Computer Engineering >> The Photonic Systems Group
PSG Home| Lawrence Chen| Andrew Kirk| Odile Liboiron-Ladouceur| David Plant| Martin Rochette| Contact
Contact Information

Academic Background

Professional Experience

Publications

Current Courses

Awards

Publications

  • Invited Contributions to Book Chapters
    1. L. R. Chen, Optical code-division multiple access enabled by fiber Bragg grating technology, in Optical CDMA: Fundamentals and Applications, edited by P. R. Prucnal, Boca Raton: CRC Press, Taylor & Francis Group (2006).

  • Publications in Refereed Journals
    1. D. Pudo, M. Depa, and L. R. Chen, Single and multi-wavelength all-optical clock recovery in single-mode fiber using the temporal Talbot effect, to appear in IEEE/OSA Journal of Lightwave Technology (2007).
    2. N. Gryspolakis and L. R. Chen, Response of fiber optic parametric amplifiers to channel add/drop in agile all-photonic networks, to appear in Optics Communications (Apr. 2007).
    3. V. Baby, L. R. Chen, S. Doucet, and S. LaRochelle, Continuous-wave operation of semiconductor optical amplifier-based multi-wavelength tunable fiber laser with 25 GHz spacing, IEEE Journal of Selected Topics in Quantum Electronics, Issue on Progress on Solid State, Fiber, and Tunable Sources, vol. 13, no. 3, pp. 764-769 (2007).
    4. D. Pudo and L. R. Chen, Simple estimate of pulse amplitude noise and timing jitter evolution through the temporal Talbot effect, Optics Express, vol. 15, no. 10, pp. 6351-6357 (2007).
    5. L. R. Chen and X. Gu, Dual-wavelength Yb-doped fiber laser stabilized through four-wave mixing, Optics Express, vol. 15, no. 8, pp. 5083-5088 (2007).
    6. J. Gest and L. R. Chen, Impact of the all-optical gain-clamping technique on the transience characteristics of cascaded discrete fiber Raman amplifiers, Optics Communications, vol. 273, no. 1, pp. 138-148 (2007).
    7. J. D. Taylor, L. R. Chen, and X. Gu, Simple reconfigurable photonic microwave filter using an array waveguide grating and fiber Bragg gratings, IEEE Photonics Technology Letters, vol. 19, no. 7, pp. 510-512 (2007)
    8. S. S.-H. Yam, L. Thomas, L. R. Chen, and F. J. Achten, Multi-user OCDMA system over broad wavelength window multimode fiber, IEE Electronics Letters, vol. 43, no. 4, pp. 239-240 (2007).
    9. B. Xia, L. R. Chen, P. Dumais, and C. Callender, Ultrafast pulse train generation with binary code patterns using planar lightwave circuits, IEE Electronics Letters, vol. 45, no. 19, pp. 1119-1120 (2006).
    10. B. Xia and L. R. Chen, Ring resonator arrays for pulse repetition rate multiplication and shaping, IEEE Photonics Technology Letters, vol. 18, no. 19, pp. 1999-2001 (2006).
    11. J. Magné, J. Azaña, S. LaRochelle, and L. R. Chen, Simple technique for eliminating inter-channel phase fluctuations in spectral Talbot-based periodic comb filters, IEEE Photonics Technology Letters, vol. 18, no. 18, pp. 1958-1960 (2006).
    12. V. Pagé and L. R. Chen, Measuring chromatic dispersion of optical fiber using time-of-flight and a tunable multi-wavelength semiconductor fiber laser, Optics Communications, vol. 265, pp. 161-170 (2006).
    13. B. Xia and L. R. Chen, Arbitrary optical waveform generation using 2D ring resonator arrays, Optics Express, vol. 14, no. 15, pp. 6619-6627 (2006).
    14. R. E. Gordon and L. R. Chen, New control algorithms in an optical packet switch with limited-range wavelength converters, IEEE Communications Letters, vol. 10, no. 6, pp. 495-497 (2006).
    15. J. Magné, J. Bolger, M. Rochette, S. LaRochelle, L. R. Chen, B. J. Eggleton, and J. Azaña, 4?100 GHz pulse train generation from a single-wavelength 10 GHz mode-locked laser using superimposed fiber Bragg gratings and nonlinear conversion, IEEE/OSA Journal of Lightwave Technology, vol. 24, no. 5, pp. 2091-2099 (2006).
    16. D. Pudo and L. R. Chen, Estimating intensity fluctuations in high repetition rate pulse trains generated using the temporal Talbot effect, IEEE Photonics Technology Letters, vol. 18, no. 5, pp. 658-660 (2006).
    17. R. E. Gordon and L. R. Chen, Demonstration of all-photonic spectral label switching for optical MPLS networks, IEEE Photonics Technology Letters, vol. 18, no. 4, pp. 586-588 (2006).
    18. L. R. Chen and V. Pagé, Tunable photonic microwave filter using a semiconductor fiber laser, IEE Electronics Letters, vol. 44, no. 21, pp. 1183-1184 (2005).
    19. R. Adams, J. Faucher, L. Thomas, D. V. Plant, and L. R. Chen, Demonstration of 2D wavelength-time bipolar codes for OCDMA systems with differential detection, IEEE Photonics Technology Letters, vol. 17, no. 11, pp. 2490-2492 (2005).
    20. J. Azaña, C. Wang, and L. R. Chen, Spectral self-imaging phenomena in sampled Bragg gratings, Journal of the Optical Society of America B, vol. 22, no. 9, pp. 1829-1841 (2005).
    21. J. Magné, P. Giaccari, S. LaRochelle, J. Azaña, and L. R. Chen, All-fiber comb filter with tunable free-spectral-range, Optics Letters, vol. 30, no. 16, pp. 2062-2064 (2005).
    22. R. Adams and L. R. Chen, Impact of encoder/decoder mismatch due to wavelength and time misalignments on system performance of 2D wavelength-time optical CDMA systems, Applied Optics, vol. 44, no. 20, pp. 4368-4374 (2005).
    23. A. A. Garba, R. M. H. Yim, J. Bajcsy, and L. R. Chen, Analysis of optical CDMA signal transmission: capacity limits and simulation results, EURASIP Journal of Applied Signal Processing, vol. 10, pp. 1603-1616 (2005).
    24. H. Cao, L. R. Chen, J. Magné, and S. LaRochelle, Tunable 4 ? 10 GHz optically mode-locked semiconductor fiber laser, IEE Electronics Letters, vol. 41, no. 13, pp. 730-732 (2005).
    25. H. Cao and L. R. Chen, Wavelength tuning in optically mode-locked semiconductor fiber ring lasers using linearly chirped fiber Bragg gratings, Applied Optics, vol. 44, no. 17, pp. 3545-3551 (2005).
    26. L. R. Chen and J. Azaña, Spectral Talbot phenomena in sampled arbitrarily chirped Bragg gratings, Optics Communications vol. 250, nos. 4-6, pp. 302-308 (2005).
    27. J. Faucher, R. Adams, L. R. Chen, and D. V. Plant, Multi-user OCDMA system demonstrator with full CDR using a novel OCDMA receiver, IEEE Photonics Technology Letters, vol. 17, no. 5, pp. 1115-1117 (2005).
    28. D. Pudo and L. R. Chen, Tunable pulse repetition rate multiplication with the temporal Talbot effect, IEEE/OSA Journal of Lightwave Technology, vol. 23, no. 4, pp. 1729-1733 (2005).
    29. L. R. Chen and N. Bélanger, Wavelength-tunable, mode-locked semiconductor fiber ring laser incorporating a high-birefringence Sagnac loop, IEE Electronics Letters, vol. 41, no. 4, pp. 21-22 (2005).
    30. B. Xia and L. R. Chen, A direct time-domain approach for pulse repetition rate multiplication and arbitrary envelope shaping, IEEE Journal on Selected Topics in Quantum Electronics, vol. 11, no. 1, pp. 165-172 (2005).
    31. N. Gryspolakis, L. R. Chen, and T. Zambelis, On the performance of two-stage discrete fiber Raman amplifiers with and without all-optical gain-clamping, Applied Optics, vol. 44, no. 1, pp. 83-90 (2005).
    32. C. Wang, J. Azaña, and L. R. Chen, Efficient technique for increasing the channel density in multi-wavelength sampled fiber Bragg grating filters, IEEE Photonics Technology Letters, vol. 16, no. 8, pp. 1867-1869 (2004).
    33. C. Wang, J. Azaña, and L. R. Chen, Spectral Talbot-like phenomena in one-dimensional photonic bandgap structures, Optics Letters, vol. 29, no. 14, pp. 1590-1592 (2004).
    34. P. Kockaert, J. Azaña, L. R. Chen, and S. LaRochelle, Full characterization of uniform ultrahigh speed trains of optical pulses using fiber Bragg gratings and linear detectors, IEEE Photonics Technology Letters, vol. 16, no. 6, pp. 1540-1542 (2004).
    35. L. R. Chen, Tunable multi-wavelength fiber ring lasers using a programmable high-birefringence fiber loop mirror, IEEE Photonics Technology Letters, vol. 16, no. 2, pp. 410-412 (2004).
    36. J. Azaña and L. R. Chen, General temporal self-imaging phenomena, Journal of the Optical Society of America B, vol. 20, no. 7, pp. 1447-1458 (2003).
    37. J. Azaña, R. Slavík, P. Kockaert, L. R. Chen, and S. LaRochelle, Generation of customized ultrahigh repetition rate pulse bursts using superimposed fiber Bragg gratings, IEEE/OSA Journal of Lightwave Technology, vol. 21, no. 6, pp. 1490-1498 (2003).
    38. B. Xia, D. Pudo, and L. R. Chen, Comparison of the static and dynamic properties of single- and double-pass, partially gain-clamped, two-stage L-band EDFAs, IEEE Photonics Technology Letters, vol. 15, no. 4, pp. 519-521 (2003).
    39. J. Azaña, P. Kockaert, R. Slavík, L. R. Chen, and S. LaRochelle, Generation of a 100-GHz optical pulse train by pulse repetition rate multiplication using superimposed fiber Bragg gratings, IEEE Photonics Technology Letters, vol. 15, no. 3, pp. 413-415 (2003).
    40. D. Pudo and L. R. Chen, Actively mode-locked, quadruple-wavelength fiber laser with pump-controlled wavelength switching, IEE Electronics Letters, vol. 39, pp. 272-274 (2003).
    41. R. M. H. Yim, J. Bajcsy, and L. R. Chen, A new family of 2D wavelength-time codes for optical CDMA with differential detection, IEEE Photonics Technology Letters, vol. 15, no. 1, pp. 165-167 (2003).
    42. J. Azaña, R. Slavík, P. Kockaert, L. R. Chen, and S. LaRochelle, Generation of ultrahigh repetition rate pulse bursts by means of fiber Bragg gratings operating in transmission, IEE Electronics Letters, vol. 38, no. 24, pp. 1555-1556 (2002).
    43. J. Azaña and L. R. Chen, Synthesis of temporal optical waveforms using fiber Bragg gratings: a new approach based on space-to-frequency-to-time mapping, Journal of the Optical Society of America B, vol. 19, no. 11, pp. 2758-2769 (2002).
    44. B. Xia and L. R. Chen, Two-stage L-band EDFAs with gain-clamped characteristics using partial gain-clamping, Optics Communications, vol. 206, nos. 4-6, pp. 301-308 (2002).
    45. L. R. Chen, Design of flat-top bandpass filters based on symmetric multiple phase-shifted long-period fiber gratings, Optics Communications, vol. 205, nos. 4-6, pp. 271-276 (2002).
    46. R. M. H. Yim, L. R. Chen, and J. Bajcsy, Design and performance of 2D codes for wavelength-time optical CDMA, IEEE Photonics Technology Letters, vol. 14, no. 5, pp. 714-716 (2002).
    47. J. Azaña and L. R. Chen, Multiwavelength optical signal processing with multistage ring resonators, IEEE Photonics Technology Letters, vol. 14, no. 5, pp. 654-656 (2002).
    48. C.-H. Wang, L. R. Chen, and P. W. E. Smith, Analysis of sampled chirped and chirped sampled fiber Bragg gratings, Applied Optics, vol. 41, no. 9, pp. 1654-1660 (2002).
    49. D. Pudo, L. R. Chen, D. Giannone, L. Zhang, and I. Bennion, Actively mode-locked, tunable dual-wavelength erbium-doped fiber laser, IEEE Photonics Technology Letters, vol. 14, no. 2, pp. 143-145 (2002).
    50. L. R. Chen, Phase-shifted long-period gratings by refractive index-shifting, Optics Communications, vol. 200, nos. 1-6, pp. 187-191 (2001).
    51. L. R. Chen, Flexible fiber Bragg grating encoder/decoder for hybrid wavelength-time optical CDMA, IEEE Photonics Technology Letters, vol. 13, no. 10, pp. 1233-1235 (2001).
    52. J. Azaña, M. A. Muriel, L. R. Chen, and P. W. E. Smith,Fiber Bragg grating period reconstruction using time-frequency signal analysis and application to distributed sensing, IEEE/OSA Journal of Lightwave Technology, vol. 19, no. 5, pp. 646-654 (2001).
    53. L. R. Chen, XPM-induced intensity distortion due to dispersion in fiber Bragg grating filters, Optics Communications, vol. 190, nos. 1-6, pp. 141-145 (2001).
    54. L. R. Chen, Influence of grating group delay ripple on the reduction of dispersion induced intensity noise in subcarrier multiplexed systems, Optics Communications, vol. 187, nos. 1-3, pp. 125-128 (2001).
    55. L. R. Chen, G. E. Town, P.-Y. Cortès, S. LaRochelle, and P. W. E. Smith, Dual-wavelength, actively mode-locked fiber laser with 0.7-nm wavelength spacing, IEE Electronics Letters, vol. 36, no. 23, pp. 1921-1923 (2000).
    56. G. E. Town, L. Chen, and P. W. E. Smith, Dual wavelength modelocked fiber laser, IEEE Photonics Technology Letters, vol. 12, no. 11, pp. 1459-1461 (2000).
    57. L. R. Chen, Relative intensity noise enhancement due to out-of-band dispersion in cascaded fiber Bragg gratings, Optics Communications, vol. 184, nos. 1-4, pp. 157-160 (2000).
    58. L. R. Chen and P. W. E. Smith, Tailoring chirped Moiré fiber Bragg gratings for wavelength-division-multiplexing and optical code-division multiple-access applications, Fiber and Integrated Optics, vol. 19, no. 4, pp. 423-438 (2000).
    59. L. R. Chen and P. W. E. Smith, Demonstration of incoherent wavelength-encoding/time-spreading optical CDMA using chirped Moiré gratings, IEEE Photonics Technology Letters, vol. 12, no. 9, pp. 1281-1283 (2000).
    60. L. R. Chen, D. J. F. Cooper, and P. W. E. Smith, Transmission edge filters for power equalization of EDFA’s, IEEE Photonics Technology Letters, vol. 12, no. 7, pp. 822-824 (2000).
    61. J. Azaña, L. R. Chen, M. A. Muriel, and P. W. E. Smith, Experimental demonstration of real-time Fourier transformation using linearly chirped fiber Bragg gratings, IEE Electronics Letters, vol. 35, no. 25, pp. 2223-2224 (1999).
    62. L. R. Chen, P. W. E. Smith, and C. Martijn de Sterke, Wavelength-encoding/time-spreading optical code division multiple-access system with in-fiber chirped Moiré gratings, Applied Optics, vol. 38, no. 21, pp. 4500-4508 (1999).
    63. L. R. Chen, H. S. Loka, D. J. F. Cooper, P. W. E. Smith, R. Tam, and X. Gu, Fabrication of transmission filters with single or multiple flattened passbands based on chirped Moiré gratings, IEE Electronics Letters, vol. 35, no. 7, pp. 584-585 (1999).
    64. L. R. Chen, S. D. Benjamin, P. W. E. Smith, and J. E. Sipe, Applications of ultrashort pulse propagation in Bragg gratings for wavelength-division-multiplexing and code-division multiple access, IEEE Journal of Quantum Electronics, vol. 34, no. 11, pp. 1217-1229 (1998).
    65. L. R. Chen, and P. W. E. Smith, Fiber Bragg grating transmission filters with near-ideal filter response, IEE Electronics Letters, vol. 34, no. 21, pp. 2048-2050 (1998).
    66. L. R. Chen, D. J. F. Cooper, and P. W. E. Smith, Transmission filters with multiple flattened passbands based on chirped Moiré gratings, IEEE Photonics Technology Letters, vol. 10, no. 9, pp. 1283-1285 (1998).
    67. L. R. Chen, J. E. Sipe, S. D. Benjamin, H. Jung, and P. W. E. Smith, Dynamics of ultrashort pulse propagation in fiber gratings, Optics Express, vol. 1, no. 9, pp. 242-249 (1997).
    68. L. R. Chen, S. D. Benjamin, P. W. E. Smith, and J. E. Sipe, Ultrashort pulse reflection from fiber gratings: a numerical investigation, IEEE/OSA Journal of Lightwave Technology, vol. 15, no. 8, pp. 1503-1512 (1997).
    69. L. R. Chen, S. D. Benjamin, P. W. E. Smith, J. E. Sipe, and S. Juma, Ultrashort pulse propagation in multiple-grating fiber structures, Optics Letters, vol. 22, no. 6, pp. 402-404 (1997).
    70. G. L. Yip, P. C. Noutsios, and L. Chen, Improved propagation-mode near-field method for refractive index profiling of optical waveguides, Applied Optics, vol. 35, no. 12, pp. 2060-2068 (1996).

  • Invited Conference Presentations
    1. L. R. Chen and B. Xia, Arbitrary optical waveform generation using planar lightwave circuits, Progress in Electromagnetics Research Symposium (PIERS'07), 26-30 March 2007, Beijing, China.
    2. L. R. Chen and J. Azaña, The spectral Talbot effect and applications, Opto-Electronics and Communications Conference (OECC’05), 4-8 July 2005, Seoul, Korea, paper 8E3-1.
    3. L. R. Chen, J. Azaña, and C. Wang, L'effet Talbot observé dans le domaine spectral dans les métaréseaux de Bragg apériodiques, Colloque Optique Guidée et Photonique, 72e Congrčs de l'Association Francophone pour le Savoir (ACFAS'04), 10-14 May 2004, Montreal, Quebec.
    4. L. R. Chen, Novel grating designs and properties, OSA Topical Meeting on Bragg Gratings, Photosensitivity, and Poling (BGPP’03), 1-3 September 2003, Monterey, California, paper TuB1.
    5. L. R. Chen, Optical code-division multiple access: Challenges and solutions, Photonics North, 2-6 June 2002, Quebec City, Quebec, paper Tu-A1-OCDMA-1.

  • Publications in Refereed Conference Proceedings
    1. I. A. Kostko, L. R. Chen, and D. V. Plant, 40 GHz millimeter-wave generation using a lattice-form Mach-Zehnder interferometer, IEEE Topical Meeting on Microwave Photonics (MWP’07), Victoria, Canada.
    2. X. Gu and L. R. Chen, Multi-wavelength generation in Yb-doped fiber laser through four-wave mixing, OSA Topical Meeting on Nonlinear Photonics (NP 07), Quebec City, Canada, paper NThC4.
    3. V. Baby, C. Habib, L. R. Chen, A. Dumais, and S. LaRochelle, All-optical swap of spectral labels using cascaded cross gain modulation in semiconductor fiber ring lasers, OSA Topical Meeting on Nonlinear Photonics (NP’07), Quebec City, Canada, paper NTuB5.
    4. P. Seddighian, V. Baby, C. Habib, L. R. Chen, L. Rusch, and S. LaRochelle, All-optical label swapping for multi-wavelength label switching networks, Photonics Switching (PS 07), San Francisco, USA, 19-22 August 2007, paper WB2.4.
    5. V. Baby, C. Habib, and L. R. Chen, All-optical swapping of spectral amplitude labels using cross-gain modulation in hybrid semiconductor fiber ring lasers, IEEE Midwest Symposium on Circuits and Systems (IEEE MWSCAS 07), Montreal, Canada, 5-8 August 2007, paper A1L-F-3089.
    6. A. Jain, I. A. Kostko, L. R. Chen, B. Xia, C. Callender, and P. Dumais, Design and analysis of a 6-stage tunable MZI PLC for BPSK generation, IEEE Midwest Symposium on Circuits and Systems (IEEE MWSCAS 07), Montreal, Canada, 5-8 August 2007, paper C2P-K-3092.
    7. D. Pudo, M. Depa, L. R. Chen, M. Ibsen, and D. J. Richardson, Temporal-Talbot effect based all-optical clock recovery using Bragg gratings, Conference on Lasers and Electro-Optics Europe (CLEO-Europe 07), Munich, Germany, 17-22 June 2007, paper CI7-5-THU.
    8. V. Baby, C. Habib, S. Jamal, and L. R. Chen, All-optical swapping of spectrally efficient, spectral amplitude code-based labels in semiconductor fiber ring lasers using cross-absorption modulation, Conference on Lasers and Electro-Optics Europe (CLEO-Europe’07), Munich, Germany, 17-22 June 2007, paper CI7-3-THU.
    9. L. R. Chen and J. C. Cartledge, Mode-locking and all-optical clock recovery in a semiconductor fiber laser using cross-absorption modulation in an electro-absorption modulator, Conference on Lasers and Electro-Optics Europe (CLEO-Europe 07), Munich, Germany, 17-22 June 2007, paper CI-2-TUE.
    10. L. Carrion, D. Beitel, K. L. Lee, A. Jain, L. R. Chen, R. Maciejko, and A. Nirmalathas, S+C+L broadband source based on semiconductor optical amplifiers and erbium-doped fiber for optical coherence tomography, Photonics North (PN’07), Ottawa, Ontario, 3-7 June 2007.
    11. D. Beitel, K. L. Lee, L. R. Chen, and A. Nirmalathas, Performance comparison of mode-locked fiber lasers for OCT applications, Photonics North (PN 07), Ottawa Ontario, 3-7 June 2007.
    12. D. Beitel, L. Carrion, K. L. Lee, A. Jain, L. R. Chen, R. Maciejko, and A. Nirmalathas, Novel S+C+L broadband source based on semiconductor optical amplifiers and erbium-doped fiber for optical coherence tomography, Conference on Lasers and Electro-Optics (CLEO’07), Baltimore, Maryland, 6-11 May 2007, paper CFL5.
    13. L. R. Chen, A. L. K. Cheng, C. Shu, S. Doucet, and S. LaRochelle, Mode-locked multi-wavelength erbium-doped fiber laser with 25 GHz spacing, Conference on Lasers and Electro-Optics (CLEO’07), Baltimore, Maryland, 6-11 May 2007, paper CMC3.
    14. D. Pudo, M. Depa, and L. R. Chen, All-optical clock recovery using the temporal Talbot effect, Conference on Optical Fiber Communication (OFC 07), Anaheim, California, 25-29 March 2007, paper OThB7.
    15. J. Gest and L. R. Chen, Dynamic response of discrete fiber Raman amplifiers to multi-channel randomly variable packet traffic, Progress in Electromagnetics Research Symposium (PIERS 07), 26-30 March 2007, Beijing, China.
    16. N. Gryspolakis and L. R. Chen, Statistical analysis of multi-channel fiber optical parametric amplifiers in agile photonic networks, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS’06), Montreal, Quebec, 29 October - 2 November 2006, paper ThP4.
    17. B. Xia, L. R. Chen, P. Dumais, and C. L. Callender, Ultra-fast binary code pulse train generation using planar lightwave circuits, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS’06), Montreal, Quebec, 29 October - 2 November 2006, paper ThF3.
    18. B. Xia and L. R. Chen, Ultra-fast photonic signal processing using 2D ring resonator arrays designed with the direct temporal domain approach, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS’06), Montreal, Quebec, 29 October - 2 November 2006, paper ThF2.
    19. V. Baby, L. R. Chen, S. Doucet, and S. LaRochelle, SOA-based multi-wavelength comb laser with 25 GHz spacing, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS 06), Montreal, Quebec, 29 October - 2 November 2006, paper WCC3.
    20. A. Hayder and L. R. Chen, Multiwavelength generation in a Brillouin semiconductor fiber laser, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS 06), Montreal, Quebec, 29 October - 2 November 2006, paper TuAA6.
    21. J. A. Bolger, J. Magné, M. Rochette, S. LaRochelle, L. R. Chen, B. J. Eggleton, and J. Azaña, Ultrahigh speed pulse trains via superimposed fibre Bragg gratings and nonlinear wavelength conversion, Australian Conference on Optical Fiber Technology (ACOFT’06), Melbourne, Australia, 10-13 July 2006.
    22. R. Kashyap, L. R. Chen, J. Azaña, R. Maciejko, R. Matei, J. Chauve, J. Baron, G. Nemova, L. Bojor, D. Beitel, S. Saqqa, and K. Singh, Development of broadband sources for optical coherence tomography, Photonics North (PN’06), Quebec City, Quebec, 5 -8 June 2006.
    23. J. B. Rosas-Fernández, L. R. Chen, S. LaRochelle, A. Leon-Garcia, D. Plant, and L. A. Rusch, Packet switched networks with photonic code processing, Photonics North (PN 06), Quebec City, Quebec, 5 -8 June 2006.
    24. B. Xia and L. R. Chen, Optical signal processing and pulse shaping using 2D ring resonator arrays and the direct temporal domain approach, 23rd Queen’s University Biennial Symposium on Communications, Kingston, Ontario, 30 May - 1 June 2006.
    25. L. Thomas and L. R. Chen, Impact of component mismatch on the BER performance of 2D wavelength-time bipolar OCDMA system, 23rd Queen’s University Biennial Symposium on Communications, Kingston, Ontario, 30 May - 1 June 2006.
    26. D. Pudo and L. R. Chen, Amplitude fluctuations in the generation of high repetition-rate pulse trains using the temporal Talbot effect, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS 05), Sydney, Australia, 23-27 October 2005, paper ThBB3.
    27. J. Gest and L. R. Chen, Analysis of gain transients in cascades of discrete fiber Raman amplifiers, Photonics North (PN’05), Toronto, Ontario, 12-14 September, 2005, paper 5970B-95.
    28. L. R. Chen and H. Cao, Strategies for developing tunable multi-wavelength, mode-locked semiconductor fiber ring lasers, Photonics North (PN’05), Toronto, Ontario, 12-14 September, 2005, paper 5970B-80.
    29. V. Pagé and L. R. Chen, Time-of-flight chromatic dispersion measurements using a tunable, multi-wavelength semiconductor fiber laser, Photonics North (PN’05), Toronto, Ontario, 12-14 September, 2005, paper 5970B-72.
    30. L. R. Chen and J. Azaña, Spectral Talbot effect in sampled arbitrarily chirped fiber Bragg gratings, Opto-Electronics and Communications Conference (OECC’05), Seoul, Korea, 4-8 July, 2005, paper 8D3-6.
    31. R. Adams, J. Faucher, J. Bajcsy, L. R. Chen, and D. V. Plant, Demonstration of encoding/decoding in 2D wavelength-time bipolar OCDMA, Opto-Electronics and Communications Conference (OECC 05), Seoul, Korea, 4-8 July, 2005, paper 8A3-1.
    32. H. Cao, L. R. Chen, J. Magné, and S. LaRochelle, Tunable quadruple-wavelength optically mode-locked semiconductor fiber ring laser, Opto-Electronics and Communications Conference (OECC’05), Seoul, Korea, 4-8 July, 2005, paper 8D1-4.
    33. J. Magné, P. Giaccari, S. LaRochelle, J. Azaña, and L. R. Chen, All-fiber periodic frequency filter with widely tunable frequency spacing, Bragg Gratings, Photosensitivity, and Poling (BGPP’05), Sydney, Australia, 4-6 July, 2005.
    34. D. Kinet, D. Giannone, D. Hamoir, and L. R. Chen, Fractional spectral Talbot effect in sampled variable-chirp fiber Bragg gratings for multi-wavelength operation, Conference on Lasers and Electro-Optics Europe (CLEO-Europe’05), Munich, Germany, 12-17 June, 2005, paper CW-17-WED.
    35. D. Giannone, G. Peigné, D. Kinet, D. Hamoir, H. Cao, and L. R. Chen, Tunable all-optically mode-locked semiconductor fiber ring laser, Conference on Lasers and Electro-Optics Europe (CLEO-Europe’05), Munich, Germany, 12-17 June, 2005, paper CJ4-2-TUE.
    36. N. Gryspolakis and L. R. Chen, On the suitability of fiber optical parametric amplifiers for agile photonic networks, OSA Topical Meeting on Information Photonics, Charlotte, North Carolina, 6-9 June, 2005, paper IThC5.
    37. R. E. Gordon and L. R. Chen, Demonstration of all-photonic code conversion in a semiconductor fiber ring laser for OCDMA networks, OSA Topical Meeting on Information Photonics, Charlotte, North Carolina, 6-9 June, 2005, paper IThC3.
    38. R. E. Gordon, L. R. Chen, and M. Coates, Analysis of a WDM packet switch with a reduced set of limited-range wavelength converters, OSA Topical Meeting on Information Photonics, Charlotte, North Carolina, 6-9 June, 2005, paper JWB3.
    39. J. Magné, S. LaRochelle, and L. R. Chen, 50 to 350 GHz pulse bursts generation, Conference on Lasers and Electro-Optics (CLEO’05), Baltimore, Maryland, 22-27 May, 2005, paper JWB45.
    40. J. Faucher, R. Adams, L. R. Chen, and D. V. Plant, Performance of a multi-user OCDMA system demonstrator with full clock and data recovery, Conference on Lasers and Electro-Optics (CLEO’05), Baltimore, Maryland, 22-27 May, 2005, paper CTuFF5.
    41. J. Gest and L. R. Chen, Performance analysis of all-optical gain-clamped discrete fiber Raman amplifiers, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS’04), San Juan, Puerto Rico, 7-11 November 2004, paper ThV3.
    42. L. R. Chen and N. Bélanger, Generation of tunable, dual-wavelength picosecond pulses from a mode-locked semiconductor fiber ring laser, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS’04), San Juan, Puerto Rico, 7-11 November 2004, paper ThV2.
    43. D. Giannone, G. Peigné , D. Kinet, D. Hamoir, L. R. Chen, C. Wang, and J. Azaña, Experimental demonstration of the fractional spectral Talbot effect in sampled chirped fiber Bragg gratings, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS’04), San Juan, Puerto Rico, 7-11 November 2004, paper WDD2.
    44. D. Pudo and L. R. Chen, Tunable passive optical pulse repetition rate multiplier, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS’04), San Juan, Puerto Rico, 7-11 November 2004, paper WP5.
    45. R. Adams and L. R. Chen, Demonstration of a 4-user 2-D wavelength-time optical CDMA system employing depth-first search codes, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS’04), San Juan, Puerto Rico, 7-11 November 2004, paper TuJ2.
    46. A. A. Garba, J. Bajcsy, and L. R. Chen, Increasing the capacity of optical CDMA transmission with non-binary modulation, IASTED International Multi-Conference on Wireless and Optical Communications, Banff, Alberta, 8 - 10 July 2004, paper 423-068.
    47. N. Gryspolakis, L. R. Chen, and T. Zambelis, Two-stage discrete fiber Raman amplifiers with and without gain-clamping, 22nd Queen’s University Biennial Symposium on Communications, 1 - 3 June 2004, Kingston, Ontario, paper 149.
    48. B. Xia and L. R. Chen, A direct time-domain approach for pulse repetition rate multiplication using spectrally-periodic filters, 22nd Queen's University Biennial Symposium on Communications, 1 - 3 June 2004, Kingston, Ontario, paper 148.
    49. J. Gest and L. R. Chen, Comparison of two all-optical gain-clamped techniques for discrete fiber Raman amplifiers, 22nd Queen’s University Biennial Symposium on Communications, 1 - 3 June 2004, Kingston, Ontario, paper 33.
    50. R. Adams and L. R. Chen, Effects of encoder/decoder mismatch on BER performance for 2-D wavelength-time OCDMA, Conference on Lasers and Electro-Optics (CLEO 04), San Francisco, California, 16-21 May 2004, paper CWA13.
    51. L. R. Chen, Multi-wavelength SOA-based fiber ring laser with tunable wavelength spacing using a programmable high birefringence fiber loop mirror, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS 03), Tucson, Arizona, 26-30 October 2003, paper ThFF5.
    52. L. R. Chen and J. Azaña, Electrically tunable, dual-wavelength actively mode-locked SOA-based fiber ring laser with superimposed fiber Bragg gratings, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS 03), Tucson, Arizona, 26-30 October 2003, paper ThFF4.
    53. T. Zambelis, N. Gryspolakis, and L. R. Chen, Design of all-optical gain-clamped discrete fiber Raman amplifiers, IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS 03), Tucson, Arizona, 26-30 October 2003, paper ThFF1.
    54. R. M. H. Yim, J. Bajcsy, and L. R. Chen, Optical CDMA transmission enabled by turbo codes, 3rd International Symposium on Turbo Codes & Related Topics, Brest, France, 1-5 September 2003.
    55. D. Pudo and L. R. Chen, Quadruple-wavelength mode-locked fiber laser with pump-controlled wavelength switching, Conference on Lasers and Electro-Optics (CLEO’03), Baltimore, Maryland, 1-6 June 2003, paper CWD2.
    56. L. R. Chen, D. Pudo, K. L. Lim, L. Zhang, and I. Bennion, Alternate wavelength-switching in a dual-wavelength mode-locked fiber laser, European Conference on Optical Communications (ECOC 02), Copenhagen, Denmark, 8-12 September 2002, paper P1.28.
    57. J. Azaña, R. Slavík, P. Kockaert, L. R. Chen, and S. LaRochelle, Generation of ultrahigh repetition rate pulse bursts using superimposed fiber Bragg gratings, European Conference on Optical Communications (ECOC 02), Copenhagen, Denmark, 8-12 September 2002, paper 8.3.3.
    58. R. M. H. Yim, J. Bajcsy, and L. R. Chen, 2D wavelength-time codes for optical code-division multiple access with differential detection, Photonics North, Quebec City, Quebec, 2-6 June 2002, paper Tu-A1-OCDMA-2.
    59. R. M. H. Yim, J. Bajcsy, L. R. Chen, and C. Beainy, Capacity limits of asynchronous optical CDMA systems, 21st Queen’s University Biennial Symposium on Communications, Kingston, Ontario, 2-5 June 2002, paper 98.
    60. J. Azaña and L. R. Chen, Pulse shaping using a space-to-frequency-to-time mapping technique, Conference on Lasers and Electro-Optics (CLEO’02), Long Beach, California, 19-24 May 2002, paper CWA59.
    61. B. Xia, L. R. Chen, and P. Chan, Comparison of two-stage L-band EDFAs with gain-clamped characteristics based on three configurations, Conference on Optical Fiber Communications (OFC 02), Anaheim, California, 17-22 March 2002, paper ThGG23.
    62. L. R. Chen, Feasibility of single and dual-channel 80 Gb/s multi-span transmission over conventional single mode fiber using highly-dispersed pulses, European Conference on Optical Communications (ECOC 01), Amsterdam, The Netherlands, 30 September - 4 October 2001, paper WeP.42.
    63. C.-H. Wang, L. R. Chen, and P. W. E. Smith, Sampled-chirped and chirped-sampled fiber Bragg gratings, OSA Topical Meeting on Bragg Gratings, Photosensitivity, and Poling (BGPP 01), Stresa, Italy, 4-6 July 2001, paper BThC12.
    64. L. R. Chen, Bragg grating encoder/decoder for hybrid wavelength/time OCDMA, OSA Topical Meeting on Bragg Gratings, Photosensitivity, and Poling (BGPP’01), Stresa, Italy, 4-6 July 2001, paper BThC5.
    65. L. R. Chen, Analysis of cross-phase-modulation-induced intensity distortion due to dispersion in fiber Bragg grating filters, International Symposium on Microwave and Optical Technology (ISMOT 01), Montreal, Quebec, 19-23 June 2001, paper 101.
    66. L. R. Chen, Tunable phase-shifted long-period gratings by refractive-index shifting, Canadian Conference on Electrical and Computer Engineering (CCECE’01), Toronto, Ontario, 13-16 May 2001, vol. 1, pp. 453-457.
    67. L. R. Chen, Technologies for hybrid wavelength/time optical CDMA transmission, Canadian Conference on Electrical and Computer Engineering (CCECE’01), Toronto, Ontario, 13-16 May 2001, vol. 1, pp. 435-440.
    68. L. R. Chen and P. W. E. Smith, Proof-of-principle demonstration of a wavelength-encoding/time-spreading optical code-division multiple-access system using in-fiber chirped Moiré gratings, Conference on Lasers and Electro-Optics (CLEO 00), San Francisco, California, 7-12 May 2000, paper CFC7.
    69. L. R. Chen, D. J. F. Cooper, and P. W. E. Smith, Transmission edge filters for power equalization in erbium-doped fiber amplifiers, Conference on Lasers and Electro-Optics (CLEO 00), San Francisco, California, 7-12 May 2000, paper CFC5.
    70. G. E. Town, L. R. Chen, and P. W. E. Smith, Dual-wavelength, actively mode-locked erbium-doped fiber laser, Conference on Lasers and Electro-Optics (CLEO’00), San Francisco, California, 7-12 May 2000, paper CWE4.
    71. L. R. Chen and P. W. E. Smith, Specially designed chirped Moiré gratings for optical communications, European Conference on Optical Communications (ECOC 99), Nice, France, 26-30 September 1999, paper TuD1.
    72. L. R. Chen, S. D. Benjamin, P. W. E. Smith, and J. E. Sipe, Ultrashort pulse propagation through fiber gratings: Theory and experiment, OSA Topical Meeting on Bragg Gratings, Photosensitivity, and Poling (BGPP 97), Williamsburg, Virginia, 26-28 October 1997, paper BMB2.
    73. L. R. Chen, S. D. Benjamin, P. W. E. Smith, J. E. Sipe, and S. Juma, Ultrashort pulse reflection from fiber gratings: Device applications, Conference on Lasers and Electro-Optics (CLEO 97), Baltimore, Maryland, 18-23 May 1997, paper CTuN4.
    74. L. Chen, S. D. Benjamin, P. W. E. Smith, J. E. Sipe, and S. Juma, A novel multiple-grating fiber structure for optical communications applications, International Conference on Applications of Photonic Technology (ICAPT 96), Montreal, Quebec, 24-26 July 1996, paper 13.12.
    75. L. Chen, T. H. Pham, S. Haumont, P. C. Noutsios, and G. L. Yip, Refractive index profile determination of graded-index (GRIN) waveguides from near-field measurements, OSA Topical Meeting on Gradient Index Optical Systems (GRIN 94), Rochester, New York, 7-8 June 1994, paper GTuD4.
The Photonic Systems Group / McGill University
3480 University St. room 753 / Montreal, Quebec / Canada / H3A-2A7
Tel. 514-398-2266 / Fax. 514-398-5208
www.photonics.ece.mcgill.ca