PUBLICATION (Lian-Kuan Chen)

(by year)

2020

1. L. Liu, R. Deng, J. Shi, J. He, L.K. Chen, "Beyond 100-kbit/s Transmission over Rolling Shutter Camera-based VLC Enabled by Color and Spatial Multiplexing," Optical Fiber Communication Conference, M1J. 4, 2020.

2. J. Shi, Y. Hong, R. Deng, J. He, L.K. Chen, "Real-Time Software-Reconfigurable Hybrid In-House Access with OFDM-NOMA," IEEE Photonics Technology Letters, vol. 32, no. 7, pp. 379-382, Apr. 2020.

2019

3. L. Liu, R. Deng, L.K. Chen, "Spatial and Time Dispersions Compensation With Double-Equalization for Optical Camera Communications," IEEE Photonics Technology Letters, vol. 31, no. 21, pp. 1753 - 1756, Nov. 2019.

4. L.K. Chen, Y. Shao, R. Deng, "Robust UOWC systems against bubble-induced impairments via transmit/receive diversities [Invited]," Chin. Opt. Lett., vol. 17, no. 10, pp. 100006 - , Nov. 2019.

5. L. Liu, R. Deng, L.K. Chen, "47-kbit/s RGB-LED-based optical camera communication based on 2D-CNN and XOR-based data loss compensation," Optics Express, vol. 27, no. 23, pp. 33840 - 33846, Nov. 2019.

6. Y. Shao, R. Deng, J. He, K. Wu L.K. Chen, "Digital 4K video transmission over real-time water-air OWC-OFDM system with low-complexity transmitter-side DSP," European Conference on Optical Communications (ECOC) , Paper Tu.3.C.1, Dublin, Ireland, Sep. 2019.

7. J. Shi, Y. Hong, R. Deng, J. He, L.K. Chen, G.K. Chang, "Demonstration of Real-Time Software Reconfigurable Dynamic Power-and-subcarrier Allocation Scheme for OFDM-NOMA based Multi-User Visible Light Communications," IEEE OSA Journal of Lightwave Technology, vol. 37, no. 17, pp. 4401 - 4409, Sep. 2019.

8. J. Shi, J. He, Y. Hong, J. He, L.K. Chen, "Performance-enhanced NOMA-VLC using subcarrier pairwise coding," Optics Communications, vol. 450, no. 1, pp. 141 - 146, Nov. 2019.

9. Y. Hong, L.K. Chen, J. Zhao, "Performance-enhanced gigabit/s MIMO-OFDM visible light communications using CSI-free/dependent precoding techniques," Optics Express, vol. 27, no. 9, pp. 12806 - 12816 , Apr. 2019.

10. J. Shi, Y. Hong, R. Deng, J. He, L.K. Chen, G.K. Chang, "Real-time Demonstration of Software Reconfigurable Dynamic Power-and-subcarrier Allocation Scheme for OFDM-NOMA based Multi-user Visible Light Communications," IEEE/OSA Optical Fiber Communication Conference (OFC) , Paper Th3I.5, San Diego, USA, Mar. 2019.

11. Y. Shao, Y. Hong, Z.Y. Hu, L.K. Chen, "Capacity Maximization of OWC Systems via Joint Precoding and Probabilistic Shaping," IEEE Photonics Technology Letters, vol. 31, no. 13, pp. 1031 - 1016, Jul. 2019.

12. L. Liu, R. Deng, L.K. Chen, "Spatial/Temporal Dispersion Compensation by Double Equalizations in Optical Camera Communications," Opto-Electronics Communication Conference/International Conference on Photonics in Switching (OECC/PS) , Paper ThE2-3, Fukuoka, Japan, Jul. 2019.

13. Y. Shao, Y. Hong, R. Deng, L.K. Chen, "Performance Enhancement by Spatial Diversity for Robust VLC systems with Fast-moving Terminals," Opto-Electronics Communication Conference/International Conference on Photonics in Switching (OECC/PS) , Paper ThE2-1, Fukuoka, Japan, Jul. 2019.

2018

14. L. Liu, Y. Hong, L.K. Chen, "A Frame Averaging based Signal Tracing (FAST) Algorithm for Optical Camera Communications," Asia Communications and Photonics Conference and Exhibition (ACP) , Paper Paper 359, Hangzhou, China, Oct. 2018.

15. Y. Shao, Y. Hong, S. Gao, L.K. Chen, "Faster-than-Nyquist DFT-S-OFDM over Visible Light Communications," Opto-Electronics and Communications Conference (OECC) , Paper 6A2-1, Jeju, Korea, Jul. 2018.

16. Y. Hong, T. Song, Y. Shao, L.K. Chen, C. Lim, K.L. Lee, "On the Performance of Probabilistically-Shaped CAP over Optical Wireless Communications," Opto-Electronics and Communications Conference (OECC) , Paper 4A4-4, Jeju, Korea, Jul. 2018.

17. Z.Y. Hu, S. Gao, Y. Shao, L.K. Chen, C.K. Chan, " A Robust Channel Processor for Faster-than-Nyquist Non-Orthogonal FDM Visible Light Communication Systems," European Conference on Optical Communications (ECOC) , Paper Th2.18, Rome, Italy, Sep. 2018.

18. Y. Fu, Y. Hong, L.K. Chen, C.W. Sung, "Enhanced Power Allocation for Sum Rate Maximization in OFDM-NOMA VLC Systems," IEEE Photonics Technology Letters, vol. 30, no. 13, pp. 1218 - 1221, Jul. 2018.

19. H. M. Lu, Y. Hong, L.K. Chen, J. P. Wang, "On the study of the relation between linear/nonlinear PAPR reduction and transmission performance for OFDM-based VLC systems," Optics Express, vol. 26, no. 11, pp. 13891 - 13901, May. 2018.

20. Z.Y. Hu, J. Zhao, Y. Hong, S. Gao, C.K. Chan, L.K. Chen, "Set-Partitioned QAM Fast-OFDM with Real-Valued Orthogonal Circulant Matrix Transform Pre-Coding," IEEE Conference on Lasers and Electro-Optics (CLEO) , San Jose, California, USA, May. 2018.

21. Y. Hong, S. Gao, L.K. Chen, J. Zhao, "SNR-threshold based Adaptive Loading for PAM-Fast-OFDM over Optical Wireless Communications," IEEE/OSA Optical Fiber Communication Conference (OFC) , Paper M2K.4, San Diego, California, USA, Mar. 2018.

22. Y. Shao, Y. Hong, L.K. Chen, "On CSI-free Linear Equalization for Optical Fast-OFDM over Visible Light Communications," IEEE/OSA Optical Fiber Communication Conference (OFC) , Paper M3K.5, San Diego, California, USA, Mar. 2018.

23. X. Wu, Y. Hong, Y. Tong, L. Chang, W. Zhou, L.K. Chen, "Monolithic Dual-polarization Silicon Modulator for 180 Gb/s DMT Signal Transmission," IEEE/OSA Optical Fiber Communication Conference (OFC) , Paper W4D.3, San Diego, California, USA, Mar. 2018.

24. J. Shi, Y. Hong, J. He, R. Deng, L.K. Chen, "Experimental Demonstration of OQAM-OFDM based MIMO-NOMA over Visible Light Communications," IEEE/OSA Optical Fiber Communication Conference (OFC) , Paper M2K.3, San Diego, California, USA, Mar. 2018.

2017

25. J. Tang, L.K. Chen, J. Zhao, "Dynamic Property Investigation of Optical Burst Injection Locking Lasers," Conference on Lasers and Electro-Optics Pacific Rim, OptoElectronics and Communications Conference, and Photonics Global Conference 2017 (CLEO-PR, OECC and PGC 2017) , Paper P3-152, Singapore, Aug. 2017.

26. H. M. Lu, Y. Hong, L.K. Chen, J. P. Wang, "Experimental Investigation on Impacts of PAPR Reduction Schemes in OFDM-based VLC Systems," Conference on Lasers and Electro-Optics Pacific Rim, OptoElectronics and Communications Conference, and Photonics Global Conference 2017 (CLEO-PR, OECC and PGC 2017) , Paper P3-006, Singapore, Aug. 2017.

27. L.K. Chen, Y. Hong, "Channel-independent Signal Processing for High-speed VLC Systems," Conference on Lasers and Electro-Optics Pacific Rim, OptoElectronics and Communications Conference, and Photonics Global Conference 2017 (CLEO-PR, OECC and PGC 2017) , Paper 3-3L-3 (Invited Paper), Singapore, Aug. 2017.

28. Y. Hong, L.K. Chen, "Multi-band Orthogonal Circulant Matrix Transform Precoding over Visible Light Communications," Conference on Lasers and Electro-Optics Pacific Rim, OptoElectronics and Communications Conference, and Photonics Global Conference 2017 (CLEO-PR, OECC and PGC 2017) , Paper 3-1L-3, Singapore, Aug. 2017.

29. Y. Hong, J. Xu, L.K. Chen, "Experimental investigation of multi-band OCT precoding for OFDM-based visible light communications," Optics Express, vol. 25, no. 11, pp. 12908 - 12914, May. 2017.

30. J. Zhao, L.K. Chen, "Adaptively loaded IM/DD optical OFDM based on set-partitioned QAM formats," Optics Express, vol. 25, no. 8, pp. 9368 - 9377, Apr. 2017.

31. J. Zhao, L.K. Chen, "First Investigation of Set-Partition Format based IM/DD OFDM for Fiber Communications," IEEE Conference on Lasers and Electro-Optics (CLEO) , Paper STh1O.4, San Jose, California, USA, May. 2017.

32. Y. Hong, L.K. Chen, X. Guan, "Adaptive Physical-layer Network Coding over Visible Light Communications," IEEE/OSA Optical Fiber Communication Conference (OFC) , Paper Th1E.4, Los Angeles, California, USA, Mar. 2017.

33. Y. Hong, L.K. Chen, J. Zhao, "Experimental Demonstration of Performance-enhanced MIMO-OFDM Visible Light Communications," IEEE/OSA Optical Fiber Communication Conference (OFC) , Paper Th1E.2, Los Angeles, California, USA, Mar. 2017.

2016

34. T. Wu, L.K. Chen, Y. Hong, "A vision-based indoor positioning method with high accuracy and efficiency based on self-optimized-ordered visual vocabulary," IEEE/ION Position, Location and Navigation Symposium (PLANS) , Savannah, United States, Jan. 2016.

35. Y. Hong, L.K. Chen, "Toward user mobility for OFDM-based visible light communications," OSA Optics Letters, vol. 41, no. 16, pp. 3763 - 3766, Aug. 2016.

36. Y. Hong, L.K. Chen, "Performance Investigation of OCT Precoding for MIMO-OFDM Based Indoor Visible Light Communications," International Conference on Transparent Optical Networks (ICTON) , Paper Mo.D 2.4, Trento, Italy, Jul. 2016.

37. Y. Hong, L.K. Chen, "OCT Precoding for OFDM-based Indoor Visible Light Communications," Opto-Electronics Communication Conference/International Conference on Photonics in Switching (OECC/PS) , Paper TuD3-3, Niigata, Japan, Jul. 2016.

38. Y. Hong, X. Guan, L.K. Chen, J. Zhao, "Experimental Demonstration of an OCT-based Precoding Scheme for Visible Light Communications," IEEE/OSA Optical Fiber Communication Conference (OFC) , Paper M3A.6, Anaheim, California, USA, Mar. 2016.

39. Y. Hong, T. Wu, L.K. Chen, "On the Performance of Adaptive MIMO-OFDM Indoor Visible Light Communications," IEEE Photonics Technology Letters, vol. 28, no. 8, pp. 907-910, Apr. 2016.

2015

40. L.K. Chen, H.T. Luk, "Proactive Performance Monitoring in Software Defined Networking," Asia Communications and Photonics Conference and Exhibition (ACP) , Paper ASu3H.1 (Invited), Hong Kong, Nov. 2015.

41. J. Zhao, L.K. Chen, "Improved Offset-QAM OFDM Scheme with Enhanced Dispersion Tolerance," Asia Communications and Photonics Conference and Exhibition (ACP) , Paper ASu1F.3, Hong Kong, Nov. 2015.

42. L.K. Chen, M. Li, S.C. Liew, "Optical Physical-Layer Network Coding, Recent Developments, and Challenges," IEEE Photonics Journal, (Invited) vol. 7, no. 3, Jun. 2015.

43. H.T. Luk, L.K. Chen, "Active Probing assisted Monitoring for Software Defined Networks," IEEE/OSA Optical Fiber Conference (OFC), Paper W4J.2, Los Angeles, California, USA, 2015.

44. M. Li, J. Zhao, L.K. Chen, "Multi-symbol QPSK partitioning for improved frequency offset estimation of 16-QAM signals," IEEE Photonics Technology Letters, vol. 27, no.1, pp. 18-21, 2015.

2014

45. M. Li, J. Zhao, L.K. Chen, "Least-squares carrier frequency offset estimation for coherent optical QPSK receivers ," "Least-squares carrier frequency offset estimation for coherent optical QPSK receivers," 9th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP2014), Manchester, UK, 2014.

46. H.T. Luk, L.K. Chen, "Time caliper method with enhanced accuracy using an arbitrary waveform generator and time demultiplexer with fine clock offset," OSA Optics Letters, vol. 39, no. 20, 2014.

47. L.K. Chen, M. Li, S. C. Liew, "Optical physical-layer network coding - another dimension to increase network capacity?," IEEE Photonics Conference (IPC), Paper (invited) 2014, Oct. 2014.

48. M. Li, Y. Wu, L.K. Chen, S.C. Liew, "Common-Channel Optical Physical-Layer Network Coding," IEEE Photonics Technology Letters, vol. 26, no. 13, pp. 1340-1343, July 1, 2014

2013

49. H.T. Luk, L.K. Chen, "Measurement method of the relative propagation delay of two signals based on modified caliper ruler," OSA Optics Letters, vol. 38, no. 22, pp. 4659 - 4662, 2013.

50. J. Zhao, M. Li, L.K. Chen, "Joint Symbol Synchronization and Dispersion Estimation in 16QAM Optical Fast OFDM," Opto-Electronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS), Paper WR-3-1, Kyoto, Japan, July 2013. (Invited)

51. M. Li, J. Zhao, L.K. Chen, "Blind Maximum-likelihood Frequency Offset Estimation for Coherent Fast OFDM Receivers," Opto-Electronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS), Paper TuPR-11, Kyoto, Japan, July 2013.

52. L.K. Chen, M. Li, "Feedforward Equalization with Diverse Optical Filtering," IEEE International Conference on Advanced Infocomm Technology, ICAIT 2013, Paper (Invited), Hsinchu, Taiwan, 2013.

53. P.H. Yuen, L.K. Chen, "Optimization of Microring-Based Interconnection by Leveraging the Asymmetric Behaviors of Switching Elements," IEEE OSA Journal of Lightwave Technology, vol. 31, no. 10, pp. 1585 - 1592, 2013.

2012

54. H.T. Luk, L.K. Chen, "Monitors Placement for All-Optical Networks with Linearly-Accumulated Impairments," Opto-Electronics and Communications Conference, OECC 2012, Paper 5A4-2, Korea, Busan, 2012.

55. Y.T. Tse, L.K. Chen, "Fast imaging of high-resolution twodimensional effective attenuation profile from diffuse reflectance," SPIE Journal of Biomedical Optics, vol. 17, no. 4, 2012.

56. Z.C.Xie, L.K. Chen, "Resource Optimization of Consolidating Two Coexisting Networks With Interconnections," Journal of Optical Communications and Networking, vol. 4, no. 11, pp. 936 - 946, 2012.

57. Q.K. Wang, K.H. Tse, L.K. Chen, S.-C. Liew, "Physical-Layer Network Coding for VPN in TDM-PON," IEEE Photonics Technology Letters, vol. 24, no. 23, pp. 2166 - 2168, 2012.

58. Z.X. Liu, M. Li, L. Lu, C.K. Chan, S. C. Liew, L.K. Chen, "Optical Physical-Layer Network Coding," IEEE Photonics Technology Letters, vol. 24, no. 16, pp. 1424-1427, Aug. 2012.

59. P.H. Yuen, L.K. Chen, "Optimization of Microring-based Optical Interconnection Configurations for the Reduction of Power Consumption and Insertion Loss," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference, OFC/NFOEC 2012, Paper OW4I.6, Los Angeles, California, USA, 2012.

60. Q.K. Wang, L.K. Chen, "Performance Analysis of Multicast Traffic over Spectrum Elastic Optical Networks," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference, OFC/NFOEC 2012, Paper OTh3B.7, Los Angeles, California, USA, 2012.

2011

61. M. Li, L.K. Chen, "Blind Carrier Frequency Offset Estimation Based on Eighth-Order Statistics for Coherent Optical QAM Systems ," IEEE Photonics Technology Letters, vol. 23, no. 21, pp. 1612 - 1614, 2011.

62. J. Xu, M. Li, L.K. Chen, "Rayleigh Noise Reduction in 10-Gb/s Carrier-Distributed WDM-PONs using In-band Optical Filtering," IEEE OSA Journal of Lightwave Technology, vol. 29, no. 24, pp.3632-3639, Dec. 2011.

63. P.L. Li, J. Xu, L.K. Chen, "A Novel Time-interleaved Phase Remodulation Scheme in WDM-PON with Enhanced Tolerance to Rayleigh Backscattering ," Opto-Electronics and Communications Conference, OECC 2011, Paper 5A4-3, Kaohsiung, Taiwan, 2011.

64. W. Jia, J. Xu, Z.X. Liu, C.K. Chan, L.K. Chen, "Generation of 20-Gb/s RZ-DQPSK Signal using a Directly Modulated Chirp Managed Laser," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference, OFC/NFOEC 2011, Paper OThE4, Los Angeles, California, USA, 2011.

65. J. Xu, Z.X. Liu, L.K. Chen, C.K. Chan, "Time-Interleaved Phase Remodulation to Enable Broadcast Transmission in Bidirectional WDM-PONs without Additional Light Sources," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference, OFC/NFOEC 2011, Paper OThK4, Los Angeles, California, USA, 2011.

2010

66. Y.T. Tse, L.K. Chen, "Spatially resolved 2-D attenuation image of a semi-infinite nonhomogeneous tissue from diffuse reflectance," Proc. SPIE 7573, Biomedical Applications of Light Scattering IV, 757313, Feb. 26, 2010.

67. J. Xu, Z.X. Liu, W. Jia, L.K. Chen, "A Novel Chirp-free Optical Manchester Signal Transmitter with Enhanced Dispersion Tolerance," Asia Communications and Photonics Conference and Exhibition (ACP) 2010, Paper SA 2, Shanghai, China, Dec. 2010.

68. L. Wu, M. Li, F. Zhang, Z.Y. Chen, L.K. Chen, A.S. Xu, "Fibre Nonlinearity Mitigation of OOK Signals with MLSE Utilising MZ Filter for Diverse VSB Filtering," IEE Electronics Letters, vol. 46, no. 11, pp. 780 - 781, May 2010.

69. J. Xu, L.K. Chen, C.K. Chan, "Phase Modulation Based Loopback Scheme for Rayleigh Noise Suppression in 10-Gb/s Carrier-Distributed WDM-PONs," IEEE Photonics Technology Letters, vol. 22, no. 18, pp. 1343-1345, Sep. 2010.

70. J. Xu, Y.Zhang, L.K. Chen, C.K. Chan, "A Delay-based Multicast Overlay Scheme for WDM Passive Optical Networks with 10-Gb/s Symmetric Two-way Traffic," IEEE OSA Journal of Lightwave Technology, vol. 28, no. 18, pp.2660-2666, Sep. 2010.

71. J. Xu, K.M.Chong, L.K. Chen, "Delay-interferometer based timing alignment monitoring for data and clock signal in optical RZ-DPSK and RZ-OOK systems," Optical Fiber Technology, vol. 16, no. 4, pp. 236 - 239, 2010.

72. J. Xu, L.K. Chen, C.K. Chan, "High Extinction Ratio Phase Re-modulation for 10-Gb/s WDM-PON with Enhanced Tolerance to Rayleigh Noise," International Conference on Optical Internet, COIN 2010, Paper P1061, Korea, Jeju, Jul. 2010.

73. J. Xu, L.K. Chen, C.K. Chan, "Enhancement of Wavelength Offset Tolerance for Downstream DPSK Signals Demodulation in 10-Gb/s WDM-PONs," Opto-Electronics and Communications Conference, OECC 2010, Paper 6A1-4, Sapporo, Hokkaido, Japan, Jul. 2010.

74. J. Xu, L.K. Chen, "A New Remodulation Scheme for WDM-PONs With Enhanced Tolerance to Chromatic Dispersion and Remodulation Misalignment," IEEE Photonics Technology Letters, vol. 22, no. 7, pp. 456 - 458, 2010.

75. J. Xu, L.K. Chen, "Optical Phase Remodulation for 10-Gb/s WDM-PON with Enhanced Tolerance to Rayleigh Noise ," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference, OFC/NFOEC 2010, Paper OThG3, San Diego, California, USA, 2010.

76. Z.X. Liu, Y. Qiu, J. Xu, C.K. Chan, L.K. Chen, "A WDM-PON Optical Multicast Overlay Scheme Using Inverse-RZ-Duobinary Signal," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference, OFC/NFOEC 2010, Paper OThG5, San Diego, California, USA, 2010.

2009

77. J. Zhao, L.K. Chen, "Dispersion Compensation of DQPSK Signal Using Multi-Chip Joint Maximum-Likelihood Sequence Estimation," Opto-Electronics and Communications Conference, OECC 2009, Hong Kong, Jul. 2009.

78. K.M.Chong, J. Xu, L.K. Chen, "4-wavelength 2R Regeneration Based on Self-phase Modulation and Inter-channel Walk-off Control in Bidirectional Fiber Configuration," , (ACP) 2009, Paper Proc. of SPIE-OSA-IEEE Asia Communications and Photonics, SPIE Vol. 7632, 763203, Shanghai, China, 2009.

79. J. Zhao, L.K. Chen, "Dispersion Compensation Using Decision-Feedback MLSE for Spectrally-Efficient Optical Transmission," European Conference on Optical Communications, ECOC 2009, Vienna, Austria, Sep. 2009.

80. Z.C. Xie, L.K. Chen, "Consolidation of Optical Networks with 1:1 Protection," Opto-Electronics and Communications Conference, OECC 2009, Hong Kong, Jul. 2009.

81. S. T. Ho, L.K. Chen, "Monitoring of Linearly Accumulated Optical Impairments in All-Optical Networks," Journal of Optical Communications and Networking, vol. 1, no. 1, pp. 125 - 141, Jun. 2009.

82. Kin-Man Chong, L.K. Chen, "Optical 3R Regeneration for 10 Synchronous Channels Using Self-Phase Modulation in a Bidirectional Fiber Configuration," Opto-Electronics and Communications Conference, OECC 2009, Hong Kong, Jul. 2009.

83. J. Xu, Y.Zhang, L.K. Chen, C.K. Chan, "A WDM-PON with 10-Gb/s Symmetric Bit-Rates and Multicast Overlay with Delay-Based Multicast Control," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2009, Paper NME5, San Diego, USA, Mar. 2009.

84. R.H.M. Leung, Z.C.Xie, L.K. Chen, "Optimization of Operational Fiber Links and Interconnections for the Merger of Two Networks," Optical Fiber Technology, vol. 15, no. 1, pp. 57 - 64, Jan. 2009.

2008

85. Kenneth K. Y. Wong, Bill P. P. Kuo, G.W. Lu, P. C. Chui, L.K. Chen, "Reduction of Nonlinear Crosstalk in Fiber OPAs," IEEE/LEOS Winter Topical Meeting Series, 2008, 2008.

86. S.T. Ho, G.W. Lu, L.K. Chen, C.K. Chan, "Reduction of Optical Beat Noise in Optical Sampled Subcarrier Multiplexing Systems Using Polarization Interleaved-OTDM Technology," International Conference on Optical Communications and Networks, ICOCN 2008, Paper C3-3A-05, Singapore, Dec. 2008.

87. Y.Zhang, N. Deng, C.K. Chan, L.K. Chen, "A Multicast WDM-PON Architecture Using DPSK/NRZ Orthogonal Modulation," IEEE Photonics Technology Letters, vol. 20, no. 17, pp. 1479 - 1481, Sep. 2008.

88. C.K. Chan, L.K. Chen, C.L. Lin, "Novel Network Architectures for Survivable WDM Passive Optical Networks," European Conference on Optical Communications, ECOC 2008, Paper Th.1.F.6 (Invited Paper), Brussels, Belgium, Sep. 2008.

89. Y.Zhang, N. Deng, C.K. Chan, L.K. Chen, "A Selective-broadcast Overlay Scheme for WDM-PON Using NRZ/DPSK Orthogonal Modulation Technique," International Conference on Photonics in Switching, PS 2008, Paper S-06-1, Hokkaido, Japan, Aug. 2008.

90. Z.C.Xie, R.H.M. Leung, L.K. Chen, C.K. Chan, "Optimal Location Analysis of Two Interconnections for the Consolidation of Two Networks," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2008, Paper JThA85, San Diego, USA, Feb. 2008.

2007

91. J. Zhao, L.K. Chen, "Three-chip differential phase-shift keying maximum likelihood sequence estimation for chromatic-dispersion and polarizationmode-dispersion compensation," OSA Optics Letters, vol. 32, no. 12, pp. 1746 - 1748, 2007.

92. J. Zhao, L.K. Chen, "Electronic equalization of 10Gbit/s upstream signals for asynchronous-modulation and chromatic-dispersion compensation in a high-speed centralized supercontinuum broadband-light-source WDM-PON," Journal of Optical Communications and Networking, vol. 6, no. 9, pp. 1105 - , 2007.

93. Y. Luo, Y.T. Tse, C.L. Lin, L.K. Chen, A. Burd, L. Huang, "A Non-invasive Dual-Channel Oximeter based on Near-Infrared Spectroscopy (NIRS)," IEEE/LEOS Summer Topical Meetings, 2007.

94. N. Deng, C.K. Chan, L.K. Chen, C.L. Lin, "A WDM Passive Optical Network with Centralized Light Sources and Multicast Overlay," IEEE Photonics Technology Letters, vol. 20, no. 2, pp. 114-116, Jan. 2008.

95. Y.T. Tse, G.W. Lu, L.K. Chen, C.K. Chan, "Upstream OOK Remodulation Scheme using Injection-locked FP Laser with Downstream Inverse-RZ Data in WDM Passive Optical Network," Asia Pacific Optical Communications Communication Conference, APOC 2007, Paper 6784-69, Wuhan, PRC, Nov. 2007.

96. L.K. Chen, C.K. Chan, G.W. Lu, Y.C. Ku, C.L. Lin, "Optical Performance Monitoring and Network Diagnosis in Reconfigurable Optical Networks," Asia Pacific Optical Communications Communication Conference, APOC 2007, Paper 6784-54 (Invited Paper), Wuhan, PRC, Nov. 2007.

97. J. Zhao, L.K. Chen, C.K. Chan, "Impairment Mitigation by Maximum Likelihood Sequence Estimation in Advanced Modulation Format," Opto-Electronics and Communications Conference, OECC 2007, Paper 13B2-1 (Invited), Yokohama, Japan, Jul. 2007.

98. N. Deng, C.K. Chan, L.K. Chen, "A Hybrid OTDM Scheme with Enhanced Demultiplexing Performance," IEEE Photonics Technology Letters, vol. 19, no. 19, pp. 1454-1456, Oct. 2007.

99. N. Deng, C.K. Chan, L.K. Chen, C.L. Lin, "A WDM-PON Architecture with Selective-Broadcast Overlay," European Conference on Optical Communications, ECOC 2007, Paper 10.6.5, Berlin, Germany, Sep. 2007.

100. J. Zhao, L.K. Chen, C.K. Chan, "Maximum Likelihood Sequence Estimation for Chromatic Dispersion Compensation in 4-ASK Modulation Format," Opto-Electronics and Communications Conference, OECC 2007, Paper 13B2-2, Yokohama, Japan, July 2007

101. Z.C. Xie, L.K. Chen, R.H.M. Leung, C.K. Chan, "An Algorithm for Resource Optimization of Consolidating Two Coexisting Networks," Opto-Electronics and Communications Conference, OECC 2007, Paper 13A2-6, Yokohama, Japan, Jul. 2007.

102. K.K.Y. Wong, G.W. Lu, L.K. Chen, "Polarization-Interleaved WDM Signals in a Fiber Optical Parametric Amplifier with Orthogonal Pumps," Optics Express, vol. 15, no.1, pp.56-61, Jan. 2007

103. K.K.Y. Wong, G.W. Lu, L.K. Chen, "Experimental Studies of the WDM Signal Crosstalk in Two-pump Fiber Optical Parametric Amplifiers," Optics Communications, vol. 270, no. 2, pp 429-432, 2007.

104. K.K.Y. Wong, G.W. Lu, K.C. Lau, P.K.A. Wai, L.K. Chen, "All-Optical Wavelength Conversion and Multicasting by Cross-Gain Modulation in a Single-Stage Fiber Optical Parametric Amplifier," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2007, Paper OTuI4, Anaheim, California, USA, Mar. 2007.

105. G.W. Lu, L.K. Chen, "Enhancing the Monitoring Sensitivity of DOP-based OSNR Monitors in High OSNR Region Using Off-center Narrow-band Optical Filtering," Optics Express, vol. 15, no.3, pp. 823-828, Feb. 2007.

106. Y.C. Ku, C.K. Chan, L.K. Chen, "A Robust OSNR Monitoring Scheme Using Phase Modulator Embedded Fiber Loop Mirror ," OSA Optics Letters, vol. 32, no. 12, pp. 1752-1754, Jun. 2007.

107. X.F. Sun, C.K. Chan, Z.X. Wang, C.L. Lin, L.K. Chen, "A Single-Fiber Bi-directional WDM Self-Healing Ring Network with Bi-directional OADM for Metro-Access Applications," IEEE Journal of Selected Areas on Communications, vol. 25, no. 4, pp. 18-24, Apr. 2007.

108. J. Zhao, L.K. Chen, C.K. Chan, "Joint Maximum Likelihood Sequence Estimation for Chromatic Dispersion Compensation in ASK-DPSK Modulation Format," IEEE Photonics Technology Letters, vol. 19, no. 2, pp. 73-75, Jan. 2007.

109. L. Huo, C.L. Lin, C.K. Chan, L.K. Chen, "A Reconfigurable All-Optical AND/OR Logic Gate Using Multilevel Modulation and Self-Phase Modulation," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2007, Paper OThI4, Anaheim, California, USA, Mar. 2007.

110. J. Zhao, L.K. Chen, C.K. Chan, "Maximum Likelihood Sequence Estimation for Chromatic Dispersion and Polarization Mode Dispersion Compensation in 3-Chip DPSK Modulation Format," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2007, Paper OMG3, Anaheim, California, USA, Mar. 2007.

111. J. Zhao, L.K. Chen, C.K. Chan, "A Novel Re-Modulation Scheme to Achieve Colorless High-Speed WDM-PON with Enhanced Tolerance to Chromatic Dispersion and Re-Modulation Misalignment," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2007, Paper OWD2, Anaheim, California, USA, Mar. 2007.

112. N. Deng, C.K. Chan, L.K. Chen, "A Centralized-Light-Source WDM Access Network Utilizing Inverse-RZ Downstream Signal with Upstream Data Remodulation ," Optical Fiber Technology, vol. 13, no. 1, pp.18-21, Jan. 2007.

2006

113. K.K.Y. Wong, G.W. Lu, L.K. Chen, "Simultaneous All-optical Inverted and Non-inverted Wavelength Conversion Using a Single-stage Fiber Optical Parametric Amplifier," IEEE Photonics Technology Letters, vol. 18, no. 13, pp. 1442-1444, Jul. 2006.

114. G.W. Lu, K.T. Tsai, Winston I. May, L.K. Chen, "Experimental Demonstration of Resolution-Enhanced Residual Chromatic-Dispersion Monitoring Using Half-bit Delay-interferometer Filtering for RZ-OOK System," European Conference on Optical Communications, ECOC 2006, Paper We3.P.67, Cannes, France, Sep. 2006.

115. C.K. Chan, Y.C. Ku, L.K. Chen, "Novel Techniques for Optical Performance Monitoring in Optical Systems," Asia Pacific Optical Communications Conference, APOC 2006, Paper 6354-45 (Invited), Korea, Gwangju, Sep. 2006.

116. N. Deng, K. Chan, C.K. Chan, L.K. Chen, "An All-Optical XOR Logic Gate for High-Speed RZ-DPSK Signals by FWM in Semiconductor Optical Amplifier," IEEE Journal of Selected Topics in Quantum Electronics, vol. 12, no. 4, pp.702-707, Jul./Aug. 2006.

117. J. Zhao, L.K. Chen, C.K. Chan, "Electronic Equalization for Unsynchronized Modulation and Chromatic Dispersion Compensation in Supercontinuum-Based WDM-PON," European Conference on Optical Communications, ECOC 2006, Paper We3.P.159, Cannes, France, Sep. 2006.

118. N. Deng, C.K. Chan, L.K. Chen, "A Novel Phase-modulated Label Pattern Recognition Scheme Based on Parallel Bit Comparison Using Cross-phase Modulation," European Conference on Optical Communications, ECOC 2006, Paper We3.P.86, Cannes, France, Sep. 2006.

119. J. Zhao, L.K. Chen, C.K. Chan, "Tolerance of Misalignment between ASK and DQPSK Modulation in ASK/DQPSK Orthogonal Modulation Systems," Opto-Electronics and Communications Conference, OECC 2006, Paper 5F3-3, Kaohsiung, Taiwan, Jul. 2006.

120. Y.C. Ku, K.Chan, C.K. Chan, L.K. Chen, "Patterning Effect Avoidance of SOA-based Demultiplexer in 80-Gb/s OTDM System Using RZ-DPSK Modulation Format," Opto-Electronics and Communications Conference, OECC 2006, Paper 7C1-4, Kaohsiung, Taiwan, Jul. 2006.

121. C.K. Chan, L.K. Chen, C.L. Lin, "WDM PON for Next-Generation Optical Broadband Access Networks," Opto-Electronics and Communications Conference, OECC 2006, Paper 5E2-1 (Invited), Kaohsiung, Taiwan, Jul. 2006.

122. J. Yu, L.K. Chen, G.W. Lu, S.T. Ho, "An Improved OXC Supervisory Scheme Based on Different Time-Delay Recognition," The Joint International Conference on Optical Internet and Next Generation Network, COIN-NGNCON 2006, Paper PS-13, Jeju, Korea, Jul. 2006.

123. K.T. Tsai, G.W. Lu, L.K. Chen, Winston I. Way, "Alignment Monitoring Technique for Pulse Carver and Data Modulator in RZ-DPSK Systems Using an Optical Frequency Discriminator," IEEE Photonics Technology Letters, vol. 18, no. 10, pp. 1119-1121, May. 2006.

124. K.K.Y. Wong, G.W. Lu, L.K. Chen, "Polarization-interleaved WDM signals in fiber optical parametric amplifier by orthogonal pumps ," IEEE Conference on Lasers and Electro-Optics, CLEO 2006, Paper CMW2, Long Beach, California, USA, May. 2006

125. J. Zhao, L.K. Chen, C.K. Chan, "40-Gbit/s SOA-Based All-Optical IRZ Generation Assisted by DI for Orthogonal Modulation in OTDM Systems," IEEE Conference on Lasers and Electro-Optics, CLEO 2006, Paper CFH3, Long Beach, California, USA, May. 2006.

126. G.W. Lu, M.H. Cheung, L.K. Chen, C.K. Chan, "Simple PMD-Insensitive OSNR Monitoring Scheme Assisted by Transmitter-side Polarization Scrambling," Optics Express, vol. 14, pp. 58 - 62, Feb. 2006.

127. R.H.M. Leung, L.K. Chen, "Resources Optimization of Integration Separate Optical Networks," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2006, Paper NThE5, Anaheim, California, USA, Mar. 2006.

128. J. Zhao, L.K. Chen, C.K. Chan, "Maximum Likelihood Sequence Estimation in the Presence of Timing Misalignment and Polarization Mode Dispersion in Optically Amplified Return-to-Zero Systems," IEEE International Conference on Communications, ICC 2006, Paper CT20-7, Istanbul, Turkey, Jun. 2006.

129. X.F. Sun, C.K. Chan, L.K. Chen, "A Survivable WDM PON Architecture with Centralized Alternate-Path Protection Switching for Traffic Restoration ," IEEE Photonics Technology Letters, vol. 18, no. 4, pp.631-633, Feb. 2006.

130. K.K.Y. Wong, G.W. Lu,, L.K. Chen, "Simultaneous All-Optical Inverted and Non-Inverted Wavelength Conversion Using a Single-Stage Fiber Optical Parametric Amplifier," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2006, Paper OWI39, Anaheim, California, United States, Mar. 2006.

131. Q.G. Zhao, X.F. Sun, Y.C. Ku, C.K. Chan, L.K. Chen, "A Novel Internetworking Scheme for WDM Passive Optical Network Based on Remodulation Technique ," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2006, Paper JThB67, Anaheim, California, United States, Mar. 2006.

132. X.F. Sun, C.K. Chan, L.K. Chen, "A Survivable WDM PON with Alternate-Path Switching," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2006, Paper JThB71, Anaheim, California, United States, Mar. 2006.

133. G.W. Lu, L.K. Chen, C.K. Chan, "Novel NRZ-to-RZ Format Conversion with Tunable Pulsewidth Using Phase Modulator and Interleaver ," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2006, Paper JThB32, Anaheim, California, United States, Mar. 2006.

134. J. Zhao, L. Huo, C.K. Chan, L.K. Chen, C.L. Lin, "Analytical Investigation of Optimization, Performance Bound, and Chromatic Dispersion Tolerance of 4-Amplitude-Shifted-Keying Format ," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2006, Paper JThB15, Anaheim, California, United States, Mar. 2006.

135. Y.C. Ku, C.K. Chan, L.K. Chen, "Chromatic Dispersion Monitoring Technique Using Birefringent Fiber Loop ," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2006, Paper OFN2, Anaheim, California, United States, Mar. 2006.

136. Y.C. Ku, C.K. Chan, L.K. Chen, "A Novel Robust OSNR Monitoring Technique with 40-dB Dynamic Range Using Phase Modulator Embedded Fiber Loop Mirror ," IEEE/OSA Optical Fiber Communication Conference / National Fiber Optic Engineers Conference , OFC/NFOEC 2006, Paper OWN6, Anaheim, California, United States, Mar. 2006.

2005

137. Y.C. Ku, C.K. Chan, L.K. Chen, "A PMD-Insensitive OSNR Monitoring Technique with 40-dB Dynamic Range Using Phase Modulator Embedded Fiber Loop Mirror," Workshop on Optical Transmission and Equalization, WOTE 2005, (Invited Paper), Paper B5, Shanghai, China, Nov. 2005.

138. S.S. Pun, C.K. Chan, L.K. Chen, "Demonstration of a Novel Optical Transmitter for High-Speed Differential-phase-shift-keying/Inverse-return-to-zero (DPSK/Inv-RZ) Orthogonally Modulated Signals ," IEEE Photonics Technology Letters, vol. 17, no. 12, pp. 2763-2765, Dec. 2005.

139. G.W. Lu, M.H. Cheung, L.K. Chen, C.K. Chan, "Simultaneous PMD and OSNR Monitoring by Enhanced RF Spectral Dip Analysis Assisted with a Local Large-DGD Element," IEEE Photonics Technology Letters, vol. 17, no. 12, pp. 2790-2792, Dec. 2005.

140. K.K.Y. Wong, G.W. Lu, L.K. Chen, M.E. Marhic, "Experimental Reduction of WDM Signal Crosstalk in Fibre Optical Parametric Amplifiers by Using Orthogonal Pumps," European Conference on Optical Communications, ECOC 2005, Paper We4.P.136, Glasgow, United Kingdom, Sep. 2005.

141. C.M. Lee, X.F. Sun, C.K. Chan, L.K. Chen, "A Single-Fiber Bi-directional Self-Healing WDM Multihop Mesh Network with All-Optical Cyclic Deflection Routing for Link Restoration," IEEE Photonics Technology Letters, vol. 17, no. 11, pp. 2463- 2465, Nov. 2005.

142. X.F. Sun, Z.X. Wang, C.K. Chan, C.L. Lin, L.K. Chen, "A Single-Fiber Bi-directional Self-Healing WDM Metro-Ring Network with Bi-directional OADM ," European Conference on Optical Communications, ECOC 2005, Paper We4.P.41, Glasgow, United Kingdom, Sep. 2005.

143. G.W. Lu, M.H. Cheung, L.K. Chen, C.K. Chan, "PMD-insensitive DOP-Based OSNR Monitoring Assisted by Transmitter-Side Polarization Scrambling," European Conference on Optical Communications, ECOC 2005, Paper We4.P.120, Glasgow, United Kingdom, Sep. 2005.

144. N. Deng, C.K. Chan, L.K. Chen, "Demonstration of an All-Optical Three-Input Exclusive-OR Logic Gate for High-Speed Optical DPSK Signals ," European Conference on Optical Communications, ECOC 2005, Paper Tu3.5.2, Glasgow, United Kingdom, Sep. 2005.

145. S.T. Ho, L.K. Chen, C.K. Chan, "On Requirements of Number and Placement of Optical Monitoring Modules in All-Optical Networks," Opto-Electronics and Communications Conference, OECC 2005, Paper 7A2-2, Seoul, Korea, Jul. 2005.

146. G.W. Lu, L.K. Chen, C.K. Chan, "A Simple AMI-RZ Transmitter Based on Single-Arm Intensity Modulator and Optical Delay Interferometer," Optics Communications, Vol 255/1-3 pp 35-40, 2005

147. G.W. Lu, L.K. Chen, C.K. Chan, "Performance Comparison of DPSK and OOK Signals with OOK-modulated Adjacent Channel in WDM Systems," Opto-Electronics and Communications Conference, OECC 2005, Paper 7B3-5, Seoul, Korea, Jul. 2005.

148. S.S. Pun, C.K. Chan, L.K. Chen, "A Novel Optical Frequency Shift Keying Transmitter Based on Polarization Modulation," IEEE Photonics Technology Letters, vol. 17, no. 7, pp.1528-1530, Jul. 2005.

149. J. Zhao, L.K. Chen, C.K. Chan, "Performance Degradation Induced by Pulse Carver/Data Modulator Misalignment in RZ-DPSK Systems," IEEE Conference on Lasers and Electro-Optics, CLEO 2005, Paper JThE62, Baltimore, Maryland, USA, May. 2005.

150. J. Zhao, L.K. Chen, C.K. Chan, "Mitigation of Timing Misalignment Induced Distortion Using Electronic Equalizer in RZ/CSRZ Systems," IEEE Photonics Technology Letters, vol. 17, no. 5, pp. 1106-1108, May 2005.

151. J. Zhao, L.K. Chen, C.K. Chan, C.L. Lin, "Performance Sensitivity to System Parameters in Multi-Wavelength Super-Continuum Sources," IEEE Journal of Quantum Electronics, vol. 41, no. 5, pp. 709-716, May 2005.

152. G.W. Lu, L.K. Chen, C.K. Chan, C.L. Lin, "All-Optical Tunable Wavelength Conversion based on Cross-Polarization Modulation in Nonlinear Photonics Crystal Fiber," IEE Electronics Letters, vol. 41, no. 4, pp. 55-56, Feb. 2005.

153. N. Deng, C.K. Chan, L.K. Chen, "Characterization of the performance of optical amplitude-shift keying?differential phase-shift keying orthogonally modulated signals," OSA Optics Letters, vol. 30, no. 8, pp. 818-820, Apr. 2005.

154. Z.X. Wang, X.F. Sun, C.L. Lin, C.K. Chan, L.K. Chen, "A Novel Centrally Controlled Protection Scheme for Traffic Restoration in WDM Passive Optical Networks," IEEE Photonics Technology Letters, vol. 17, no. 3, pp. 717-719, Mar. 2005.

155. X.F. Sun, Z.X. Wang, C.K. Chan, L.K. Chen, "A Novel Star-Ring Protection Architecture Scheme for WDM Passive Optical Access Networks," IEEE/OSA Optical Fiber Communication Conference, OFC 2005, Paper JWA53, Anaheim, California, USA, Mar. 2005.

156. S.S. Pun, C.K. Chan, L.K. Chen, "A Novel Optical Frequency Shift Keying Transmitter Based on Polarization Modulation ," IEEE/OSA Optical Fiber Communication Conference, OFC 2005, Paper JWA43, Anaheim, California, USA, Mar. 2005.

157. Y.C. Ku, G.W. Lu, C.K. Chan, L.K. Chen, "Novel Technique for Modulation Alignment Monitoring in RZ-DPSK Systems Using Off-Center Optical Filtering," IEEE/OSA Optical Fiber Communication Conference, OFC 2005, Paper OWJ4, Anaheim, California, USA, Mar. 2005.

158. G.W. Lu, N. Deng, C.K. Chan, L.K. Chen, "Use of Downstream Inverse-RZ Signal for Upstream Data Re-modulation in a WDM Passive Optical Network," IEEE/OSA Optical Fiber Communication Conference, OFC 2005, Paper OFI8, Anaheim, California, USA, Mar. 2005.

159. G.W. Lu, Y.C. Ku, L.K. Chen, C.K. Chan, "A Novel Technique for Pulse-Carver and Data Alignment Monitoring in RZ-DPSK Systems Using Off-Center Optical Filtering," IEEE Photonics Technology Letters, vol. 17, no. 3, pp. 711-713, Mar. 2005.

160. H.L. Lai, Y.B. Lee, L.K. Chen, "A Monotonic-Decreasing Rate Scheduler for Variable-Bit-Rate Video Streaming," IEEE Transactions on Circuits and Systems for Video Technology, Vol.15, No.2, 2005.

2004

161. G.W. Lu, L.K. Chen, C.K. Chan, "A Simple Polarization-Insensitive Optical Parametric Amplifier Scheme Using Phase Modulator," International Conference on Optical Communications and Networks, ICOCN 2004, Hong Kong, Nov. 2004.

162. L.K. Chen, M.H. Cheung, C.K. Chan, "From Optical Performance Monitoring to Optical Network Management: Research Progress and Challenges," International Conference on Optical Communications and Networks, ICOCN 2004, (Invited Paper), Hong Kong, Nov. 2004.

163. Y.C. Ku, C.K. Chan, L.K. Chen, F. Tong, "Homodyne Crosstalk Tolerance Enhancement by Self-Phase Modulation Based All-Optical Regeneration," International Conference on Optical Communications and Networks, ICOCN 2004, Hong Kong, Nov. 2004.

164. M.H. Cheung, L.K. Chen, C.K. Chan, "PMD-Insensitive OSNR Monitoring based on Polarization-Nulling with Off-Center Narrowband Filtering," IEEE Photonics Technology Letters, vol. 16, no. 11, pp. 2562-2564, Nov. 2004.

165. Z.X. Wang, X.F. Sun, C.L. Lin, C.K. Chan, L.K. Chen, "A Novel Centrally Controlled Protection Architecture for Bidirectional WDM Passive Optical Network," European Conference on Optical Communications, (ECOC), Paper Tu1.6.2, Stockholm, Sweden, Sep. 2004.

166. Z.X. Wang, X.F. Sun, C.L. Lin, C.K. Chan, L.K. Chen, "A Novel Surveillance Scheme for Passive Optical Networks Using Spectral Analysis," European Conference on Optical Communications (ECOC), Paper We4.P.142, Stockholm, Sweden, Sep. 2004.

167. N. Deng, C.K. Chan, L.K. Chen, "Performance Characterization of Optical Orthogonal ASK/DPSK Signals," European Conference on Optical Communications (ECOC), Paper We4.P.138, Stockholm, Sweden, Sep. 2004.

168. G.W. Lu, M.H. Cheung, L.K. Chen, C.K. Chan, "Simultaneous PMD and OSNR Monitoring by Enhanced RF Spectral Dip Analysis Assisted with a Local Large-DGD Element ," European Conference on Optical Communications (ECOC), Paper We4.P.092, Stockholm, Sweden, Sep. 2004.

169. L.K. Chen, H.K. Tsang, C.K. Chan, C.T. Shu, "Novel Devices for Wavelength Routing and Optical Access Networks," HKIE Transactions, vol. 11, no. 2, pp.21-33, June 2004.

170. G.W. Lu, L.K. Chen, C.K. Chan, "Investigation of Polarization Misalignment Induced Crosstalk in Polarization Division Multiplexing Systems with Different Data Formats," Opto-Electronics and Communications Conference, OECC 2004, Paper 15C3-7, Jul. 2004.

171. G.W. Lu, C. Xie, Y.C. Ku, L.K. Chen, C.K. Chan, "Enhanced PMD Monitoring with Frequency-Resolved SOP Rotation by Self-phase Modulation," IEEE Photonics Technology Letters, vol. 16, no. 9, pp. 2180-2182, Sep. 2004.

172. Y.C. Ku, C.K. Chan, L.K. Chen, F. Tong, "BER Estimation of Homodyne Crosstalk Accumulation in All-Optical Networks with All-Optical Regenerators," Opto-Electronics and Communications Conference, OECC 2004, Paper 13B1-4, Yokohama, Japan, Jul. 2004.

173. W. Hung, N. Deng, C.K. Chan, L.K. Chen, "A Novel Wavelength Shift Keying Transmitter based on Optical Phase Modulation," IEEE Photonics Technology Letters, vol. 16, no. 7, pp. 1739-1741, Jul. 2004.

174. N. Deng, Y. Yang, C.K. Chan, W. Hung, L.K. Chen, "Intensity-Modulated Labeling and All-Optical Label Swapping on Angle-Modulated Optical Packets," IEEE Photonics Technology Letters, vol. 16, no. 4, pp. 1218-1220, Apr. 2004.

175. G.W. Lu, Kit Chan, L.K. Chen, C.K. Chan, "Robustness of DPSK-WDM Systems Against Nonlinear Polarization Fluctuation," IEEE Photonics Technology Letters, vol. 16, no. 3, pp. 927-929, Mar. 2004.

176. N. Deng, Y. Yang, C.K. Chan, L.K. Chen, W. Hung, "All-Optical OOK Label Swapping on OFSK Payload in Optical Packet Networks," IEEE/OSA Optical Fiber Communication Conference, OFC 2004, Paper FO5, Los Angeles, USA, Feb. 2004.

177. N. Deng, W. Hung, C.K. Chan, L.K. Chen, F. Tong, "A Novel Wavelength Modulated Transmitter and Its Application in WDM Passive Optical Networks," IEEE/OSA Optical Fiber Communication Conference, OFC 2004, Paper MF79, Los Angeles, USA, Feb. 2004.

178. Kit Chan, C.K. Chan, L.K. Chen, F. Tong, "20-Gbit/s All-optical XOR Gate by Four-Wave Mixing in Semiconductor Optical Amplifier with RZ-DPSK Modulated Inputs," IEEE/OSA Optical Fiber Communication Conference, OFC 2004, Paper WN6, Los Angeles, USA, Feb. 2004.

179. M.H. Cheung, L.K. Chen, C.K. Chan, "PMD-insensitive OSNR Monitoring Scheme based on Polarization-nulling with Off-center Narrowband Filtering," IEEE/OSA Optical Fiber Communication Conference, OFC 2004, Paper FF2, Los Angeles, USA, Feb. 2004.

180. W. Hung, C.K. Chan, L.K. Chen, "An Optical Packet Routing Loop Mitigation Scheme using Periodically Phase-modulated Time-to-live (TTL) Field," IEEE/OSA Optical Fiber Communication Conference, OFC 2004, Paper TuQ4, Los Angeles, USA, Feb. 2004.

181. J. Zhao, L.K. Chen, C.K. Chan, C.L. Lin, "Analysis of Performance Optimization in Super-continuum Sources," OSA Optics Letters, vol. 29, no. 5, pp. 489-491, Mar. 2004.

182. Kit Chan, C.K. Chan, L.K. Chen, F. Tong, "Demonstration of 20-Gbit/s All-Optical XOR Gate by Four-Wave Mixing in Semiconductor Optical Amplifier with RZ-DPSK Modulated Inputs," IEEE Photonics Technology Letters, vol. 16, no. 3, pp. 897-899, Mar. 2004.

183. W. Hung, C.K. Chan, L.K. Chen, F. Tong, "A Novel Optical Packet Labeling Scheme Using Interleaved Low-Speed DPSK Labels," IEEE Photonics Technology Letters, vol. 16, no. 2, pp. 698-700, Feb 2004.

2003

184. N. Deng, C.K. Chan, L.K. Chen, F. Tong, "Data Re-modulation on Downstream OFSK Signal for Upstream Transmission in a WDM Passive Optical Network," IEE Electronics Letters, vol. 39, no. 24, pp. 1741-1742, Nov. 2003.

185. M.H. Cheung, L.K. Chen, C.K. Chan, "On Robustness of In-band Polarization-Assisted OSNR Monitoring Schemes Against PMD," IEEE Pacific Rim Conference on Lasers and Electro-Optics, CLEO Pacific Rim 2003, Paper W1J-(13)-5, Taipei, Taiwan, Dec 2003.

186. Y.C. Ku, Kit Chan, W. Hung, C.K. Chan, L.K. Chen, F. Tong, "Homodyne Crosstalk Tolerance Enhancement by All-Active MZI-SOA Wavelength Converters," IEEE Pacific Rim Conference on Lasers and Electro-Optics, CLEO Pacific Rim, Paper W4A-(13)-4, Taipei, Taiwan, Dec 2003.

187. N. Deng, C.K. Chan, L.K. Chen, F. Tong, "Experimental Investigation of Re-modulating Upstream OOK Data on Downstream OFSK Signal in a Two-Way WDM Access Network ," IEEE Pacific Rim Conference on Lasers and Electro-Optics, CLEO Pacific Rim 2003, Paper W1J-(13)-4, Taipei, Taiwan, Dec 2003.

188. Y. Yang, C.K. Chan, L.K. Chen, "System Characterization of Optical ASK/DPSK Orthogonal Modulation for Supervisory Information Dissemination," Asia Pacific Optical Communications and Wireless Communication Conference, APOC, Paper 5281-69, Wuhan, China PRC, Nov. 2003.

189. C.L. Lin, C.K. Chan, L.K. Chen, "Fiber-to-the-Premise (FTTP) over Cable TV's Hybrid Fibre/Coax (HFC) Networks," European Conference on Optical Communications, (Invited Paper), Paper Mo4.1.3, Rimini, Italy, Sept. 2003.

190. Kit Chan, C.K. Chan, L.K. Chen, F. Tong, "Polarization Insensitive Waveform Restoration and Channel Crosstalk Reduction in Semiconductor Optical Amplifier Gate Using Polarimetric Filtering," IEEE Photonics Technology Letters, vol. 15, no. 11, pp. 1606-1608, Nov. 2003.

191. W. Hung, C.K. Chan, L.K. Chen, F. Tong, "A Bit-Serial Optical Packet Label Swapping Scheme using DPSK Encoded Labels," IEEE Photonics Technology Letters, vol. 15, no. 11, pp. 1630-1632, Nov. 2003.

192. L.K. Chen, M.H. Cheung, C.K. Chan, F. Tong, "Performance Monitoring in Transparent Reconfigurable WDM Networks," OptoElectronics and Communications Conference, OECC, (Invited Paper), Paper 14D1.1, Shanghai, PRC, Oct. 2003.

193. T.J. Chan, C.K. Chan, L.K. Chen, F. Tong, "A Self-Protected Architecture for Wavelength Division Multiplexed Passive Optical Networks," IEEE Photonics Technology Letters, vol. 15, no. 11, pp. 1660-1662, Nov. 2003.

194. W. Hung, C.K. Chan, L.K. Chen, F. Tong, "An Optical Network Unit for WDM Access Networks with Downstream DPSK and Upstream Re-modulated OOK Data Using Injection-Locked FP Laser," IEEE Photonics Technology Letters, vol. 15, no. 10, pp. 1476-1478, Oct. 2003.

195. W. Hung, C.K. Chan, L.K. Chen, F. Tong, "A Novel Phase Encoding Scheme for Optical Packet Label Processing," European Conference on Optical Communications ECOC, Paper Tu4.4.4, Rimini, Italy, Sept. 2003.

196. W. Hung, C.K. Chan, L.K. Chen, C.L. Lin, "System Characterization of a Robust Re-modulation Scheme with DPSK Downstream Traffic in a WDM Access Network," European Conference on Optical Communications ECOC, Paper We3.4.5, Rimini, Italy, Sept. 2003.

197. Y. Zhang, L.K. Chen, C.K. Chan, "A Multi-Domain Two-Layer Labelling Scheme for Optical Packet Switched Networks with Label-Swapping-Free Forwarding," European Conference on Optical Communications ECOC, Paper Mo3.4.5, Rimini, Italy, Sept. 2003.

198. Kit Chan, C.K. Chan, L.K. Chen, F. Tong, "Mitigation of Pattern-induced Degradation in SOA-Based All-Optical OTDM Demultiplexers by using RZ-DPSK Modulation Format," European Conference on Optical Communications ECOC, Paper Mo4.3.5, Rimini, Italy, Sept 2003.

199. C.M. Lee, T.J. Chan, C.K. Chan, L.K. Chen, C.L. Lin, "A Group Protection Architecture (GPA) for Traffic Restoration in Multi-wavelength Passive Optical Networks," European Conference on Optical Communications ECOC, Paper Th2.4.2, Rimini, Italy, Sept 2003.

200. Kit Chan, C.K. Chan, L.K. Chen, F. Tong, "A Polarimetric Approach for Waveform Restoration in Semiconductor Optical Amplifiers," IEEE CLEO/Pacific Rim, Paper TU3A-(13)-6, Taipei, Taiwan, Dec 2003.

201. G.W. Lu, Kit Chan, L.K. Chen, C.K. Chan, "Performance of DPSK-WDM Systems Against Nonlinear Polarization Fluctuation," IEEE CLEO/Pacific Rim, Paper W4A-(13)-2, Taipei, Taiwan, Dec. 2003.

202. W. Hung, C.K. Chan, L.K. Chen, F. Tong, "Demonstration of an Optical Packet Label Swapping Scheme Using DPSK Encoded Bit-Serial Labels," IEEE CLEO/Pacific Rim, Paper W2A-(13)-3, Taipei, Taiwan, Dec. 2003.

203. Kit Chan, C.K. Chan, L.K. Chen, F. Tong, "Mitigation of Pattern-induced Degradation in SOA-Based All-Optical OTDM Demultiplexers by using RZ-DPSK Modulation Format," IEEE Photonics Technology Letters, vol. 15, no. 9, pp. 1264-1266, Sep. 2003.

204. Kit Chan, C.K. Chan, L.K. Chen, F. Tong, "Polarization Insensitive Waveform Restoration and Channel Crosstalk Reduction in Semiconductor Optical Amplifier Gates Using Polarimetric Filtering," IEEE/OSA Optical Fiber Communication Conference, OFC'03, Paper MF98, Altanta, Georgia, USA, Mar. 2003.

205. T.J. Chan, Y.C. Ku, C.K. Chan, L.K. Chen, F. Tong, "A Novel Bidirectional Wavelength Division Multiplexed Passive Optical Network with 1:1 Protection," IEEE/OSA Optical Fiber Communication Conference, OFC'03, Paper FQ6, Altanta, Georgia, USA, Mar. 2003.

206. W. Hung, C.K. Chan, L.K. Chen, F. Tong, "Optical Network Unit for WDM Access Networks with Downstream DPSK and Upstream Re-modulated OOK Data Using Injection-Locked FP Laser," IEEE/OSA Optical Fiber Communication Conference, OFC'03, Paper TuR2, Altanta, Georgia, USA, Mar. 2003.

207. Y.T. Tse, L.K. Chen, C.K. Chan, "A Distributed Collision Avoidance Protocol using Pilot Tone-based Carrier Sense Mechanism for Passive Optical Networks," IEEE/OSA Optical Fiber Communication Conference, OFC'03, Paper TuR4, Altanta, Georgia, USA, Mar. 2003.

2002

208. W. Hung, M.H. Cheung, S.T. Ho, L.K. Chen, C.K. Chan, "Optical Sampled Subcarrier Multiplexing Scheme for Nonlinear Distortion Reduction in Lightwave CATV Networks," IEE Electronics Letters, vol. 38, no. 25, pp. 1702-1705, Dec. 2002.

209. Y. Zhang, L.K. Chen, C.K. Chan, "Performance Analysis of Multi-Dimensional Optical Routing Networks," Asia-Pacific Optical and Wireless Communications Conference, APOC '02, no. 4910-05, Shanghai, PRC, Oct. 2002.

210. K.L. Tam, C.K. Chan, L.K. Chen, "Heuristic Method For Maximizing The Utilization Of A Survivable Multi-Ring DWDM Network Without Wavelength Conversion," Asia-Pacific Optical and Wireless Communications Conference, APOC '02, no. 4909-26, Shanghai, PRC, Oct. 2002.

211. W. Hung, M.H. Cheung, S.T. Ho, L.K. Chen, C.K. Chan, "An Optical Sampled Subcarrier Multiplexing Scheme for Nonlinear Distortion Reduction in Lightwave CATV Networks," IEEE Conference on Global Communications, GLOBECOM '02, Paper OPNT-05-4,Taipei, Taiwan, Nov. 2002.

212. T.J. Chan, C.K. Chan, Kit Chan, W. Hung, L.K. Chen, "A Novel WDM Passive Optical Network with Bi-directional Protection," Asia-Pacific Optical and Wireless Communications Conference, APOC' 02, no. 4909-23, Shanghai, PRC, Oct. 2002.

213. W. Hung, Kit Chan, L.K. Chen, C.K. Chan, F. Tong, "A Routing Loop Control Scheme in Optical Layer for Optical Packet Networks," IEEE/OSA Optical Fiber Communication Conference, OFC '02, Paper ThGG111, Anaheim, California, USA, Mar. 2002

214. Kit Chan, F. Tong, C.K. Chan, L.K. Chen, W. Hung, "An All-Optical Packet Header Recognition Scheme for Self-Routing Packet Networks," IEEE/OSA Optical Fiber Communication Conference, OFC '02, Paper WO4, Anaheim, California, USA, Mar. 2002

215. Kit Chan, C.K. Chan, F. Tong, L.K. Chen, W. Hung, "Suppression of Pattern Distortion in Semiconductor Optical Amplifier by Using Fiber Loop Mirror," IEEE Conference on Lasers and Electro-Optics, CLEO '02, Paper CThAA2, Long Beach, California, USA, May 2002

216. L.Y. Chan, C.K. Chan, D. T. K. Tong, F. Tong, L.K. Chen, "Upstream Traffic Transmitter Using Injection-Locked Fabry-Perot Laser Diode as Modulator for WDM Access Networks," IEE Electronics Letters, vol. 38, no. 1, pp. 43-45, Jan. 2002

217. Kit Chan, C.K. Chan, F. Tong, L.K. Chen, "Performance Supervision For Multiple Optical Amplifiers in WDM Transmission System Using Spectral Analysis," IEEE Photonics Technology Letters, vol. 14, no. 5, pp.705-707, May 2002

218. Y.G. Wen, Y. Zhang, L.K. Chen, "On Architecture and Limitation of Optical Multi-Protocol Label Switching (MPLS) Networks Using Optical-Orthogonal-Code (OOC)/Wavelength Label," Optical Fiber Technology, (Invited paper), vol. 8, pp.43-70, 2002

219. Kit Chan, C.K. Chan, W. Hung, F. Tong, L.K. Chen, "Waveform Restoration in Semiconductor Optical Amplifier Using Fiber Loop Mirror," IEEE Photonics Technology Letters, vol. 14, no. 7, pp. 995-997, Jul. 2002

2001

220. L.Y. Chan, S. L. Fung, S. H. Wong, Y. K. Chan, F. Tong, L.K. Chen, S. Y. Cheung, "Demonstration of Multi-Wavelength Monitoring in WDM Systems Using Injection-Locked Fabry-Perot Laser Diode," IEEE CLEO/Pacific Rim '01, Paper ThB2-3, Chiba, Japan, Jul. 2001

221. Kit Chan, F. Tong and L.K. Chen, "Cross Gain Modulation Suppression in SOA Using Polarization Diversified Loop," IEEE CLEO/Pacific Rim '01, Paper TuA1-4, Chiba, Japan, Jul. 2001

222. F. Tong, L.Y. Chan, C.K. Chan, L.K. Chen, "Applications of Injection Locked FP Lasers in WDM Networks," Optoelectronics and Communications Conference and International Conference on Integrated Optics and Optical Fiber Communications, OECC/IOOC '01, (Invited paper), Paper 14A3, Sydney, Australia, Jul. 2001

223. S. Y. Cheung, L.Y. Chan, C.K. Chan, D. T. K. Tong, F. Tong, L.K. Chen, "Demonstration of an ONU for WDM Access Network with Downstream BPSK and Upstream Remodulated OOK Data Using Injection-Locked FP Laser," European Conference on Optical Communications, ECOC '01, Paper We.B.3.2, Amsterdam, the Netherlands, Sep. 2001

224. Kit Chan, C.K. Chan, F. Tong, L.K. Chen, "A Novel FFT-based EDFA Supervisory Scheme for WDM Transmission Systems," European Conference on Optical Communications, ECOC '01, Paper We.P47, Amsterdam, the Netherlands, Sep. 2001

225. Y. Zhang, L.K. Chen, "Performance Improvement by Code Conversion in a Reconfigurable Optical Code/Wavelength Routing Network," Asian-Pacific Optical and Wireless Communication Conference, APOC '01, vol. 4584, no. 26, pp. 186-193, Beijing, China, Nov. 2001

226. L.Y. Chan, C.K. Chan, D. Tong, S.Y. Cheung, F. Tong, L.K. Chen, "Demonstration of Data Remodulation for Upstream Traffic in WDM Access Networks using Injection-Locked FP Laser as Modulator," IEEE/ OSA Optical Fiber Communications Conference, OFC '01, Paper WU5, Anaheim, CA, USA, 17 - 22 March 2001.

227. Y.G. Wen, L.K. Chen, F. Tong, "Fundamental Limitation and Optimization on Optical Code Conversion for WDM Packet Switching Networks," IEEE/OSA Optical Fiber Communications Conference, OFC '01, Paper TuV3, Anaheim, CA, USA, 17 - 22 March 2001

228. H.L. Lai, L.K. Chen, Y.B. Lee, "VBR Video Delivery Using Monotonic-Decreasing Rate Scheduling," IEEE International Symposium on Circuits and Systems, ISCAS '01, Sydney, Australia, 6 - 9 May 2001, Vol. II, pp. 341 - 344

2000

229. L.Y. Chan, F. Tong, L.K. Chen, K.P. Ho, "An Optically Controlled Wavelength Selective Switch Using a Fabry-Perot Laser Diode," European Conference on Optical Communication, ECOC '2000, Munich Germany, 3 - 7 Sep 2000, paper 9.2.5, pp. 271 - 272

230. Y.G. Wen, L.K. Chen, K.P. Ho, F. Tong, "An All-Optical Code Converter Scheme for OCDM Routing Networks," European Conference on Optical Communication, ECOC 2000, Munich Germany, 2 - 7 Sep 2000, paper P4.5, pp. 241 - 242

231. F. Tong, C.K. Chan, L.K. Chen, D. Lam, "Surveillance for WDM Systems Using Fiber Bragg Gratings," Fifth Optoelectronics and Communications Conference, OECC '00, paper 14A3, pp. 460 - 461, Chiba Japan, 10 - 14 July 2000.

232. Kit Chan, F. Tong, L.K. Chen, K.P. Ho, "Dynamic Routing in the Crosstalk Reduced Optical Add/Drop Multiplexer," Optical Fiber Communications Conference, OFC '00, Baltimore, MD, USA, 5 - 10 March 2000, paper WM36, pp. 317 - 319

233. K.P. Ho, H. Yu, L.K. Chen, F. Tong, "High-Resolution Measurement and Spectral Overlap of Cross-Phase Modulation Induced Spectral Broadening," IEEE Photonics Technology Letters, Nov 2000, Vol. 12, No. 11, pp. 1534 - 1536

234. K.P. Ho, L.K. Chen, F. Tong, "Modeling of Waveform Distortion Due to Optical Filtering," IEEE/OSA Journal of Selected Topics on Quantum Electronics, March/April 2000, Vol. 6, No. 2, pp. 223 - 226

235. Y.G. Wen, L.K. Chen, K.P. Ho, F. Tong, W.S. Chan, "Performance Verification of a Variable Bit Rate Limiter for On-Off-Keying (OOK) Optical Systems," IEEE/OSA Journal of Lightwave Technology, 2000, Vol. 18, No. 6, pp. 779 - 786

1999

236. K.P. Ho, Eddie T.P. Kong, L.Y. Chan, L.K. Chen, F. Tong, "Analysis and Measurement of Root-Mean-Squared Bandwidth of Cross-Phase-Modulation-Induced Spectral Broadenin," IEEE Photonics Technology Letters, vol. 11, no. 9, pp. 1126 - 1128, 1999.

237. E. Kong, F. Tong, K.P. Ho, L.K. Chen, C.K. Chan, "An Optical-Path Supervisory Scheme for Optical Cross-Connects Using Pilot-Tones," IEEE CLEO/Pacific Rim '99, Seoul, Korea, 30 Aug - 3 Sep 1999, Vol. 4, paper FT4, pp. 1281 - 1282

238. E. Kong, F. Tong, K.P. Ho, L.K. Chen, C.K. Chan, "Pilot-Tone Based Optical-Path Supervisory Scheme for Optical Cross-Connect," IEE Electronics Letters, 19 Aug 1999, Vol. 35, No. 17, pp. 1481 - 1483

239. W. Hung, L.K. Chen, F. Tong, K.P. Ho, L.Y. Chan, T. Shimizu, H. Yokoyama, "Demonstration of a 10Gb/s Channel-Tunable Mode-Locked Laser Transmitter for OTDM Networks," IEEE Lasers and Electro-Optics Society Annual Meeting, LEOS '99, San Francisco, California, 8 -11 Nov 1999, paper WR3, pp. 539 - 540

240. P.W Sun, L.K. Chen, F. Tong, C.K Chan, D. Lam, "Demonstration of a Scalable Fault Surveillance Scheme for WDM Transmission Links," IEEE CLEO/Pacific Rim '99, Seoul, Korea, 30 Aug - 3 Sep 1999, paper ThT4, pp. 779 - 780

241. C.K. Chan, F. Tong, L.K. Chen, K.W. Cheung, E. Kong, "Node Architecture and Protocol of a Packet-Switched Dense WDMA Metropolitan Area Network," IEEE/OSA Journal of Lightwave Technology, Nov 1999, Vol. 17, No. 12, pp. 2208 - 2218

242. S.K. Liaw, K.P. Ho, L.K. Chen, F. Tong, S. Chi, "High-Dynamic-Range Optical Cross-Connect Device Using Fiber Bragg Gratings," IEEE Photonics Technology Letters, Aug 1999, Vol. 11, No. 8, pp. 1054 - 1056

243. J.G. Zhang, L.K. Chen, W.C. Kwong, K.W Cheung, A.B. Sharma, "Experiments on High-Speed All-Optical Code-Division Multiplexing Systems Using All-Serial Encoders and Decoders for 2n Prime Code," IEEE Journal on Selected Topics in Quantum Electronics, March/April 1999, Vol. 5, No. 2 , pp. 368 - 375

244. C.K. Chan, F. Tong, L.K. Chen, D. Lam, "Demonstration of A Fault-Tolerant WDM Add-Drop/Branching Unit for Long-Haul Optical Transmission Systems," IEEE Photonics Technology Letters, Aug 1999, Vol. 11, No. 8 , pp. 1069 - 1071

245. S.K. Liaw, K.P. Ho, L.K. Chen, F. Tong, S. Chi, "Fiber Bragg Gratings Based Multiwavelength Cross-Connect with High Dynamic Range," IEEE/OSA Optical Fiber Communications Conference and the International Conference on Integrated Optics & Optical Fiber Communication, OFC/IOOC '99, San Diego, California, 21 - 26 Feb 1999, paper WM42, pp. 319 - 321

246. C.K. Chan, F. Tong, L.K. Chen, K.P. Ho, D. Lam, "Fiber-Fault Identification for Branched Access Networks Using a Wavelength-Sweeping Monitoring Source," IEEE Photonics Technology Letters, May 1999, Vol. 11, No. 5, pp. 614 - 616

247. J. G. Zhang, L.K. Chen, K.W. Cheung, W.C. Kwong, A.B. Sharma, "Very High Speed All Optical Code-division Multiplexing Systems Using a 2n Prime Code," Jorunal of Applied Optics, 1999, Vol. 38, No. 34, pp. 1751 - 1753

248. C.K. Chan, F. Tong, L.K. Chen, K.P. Ho, D. Lam, "Fault Surveillance of Branched Optical Networks using an Amplifier-Generated Wavelength-Sweeping Monitoring Source," IEEE/OSA Optical Fiber Communications Conference, OFC '99, and the International Conference on Integrated Optics and Optical Fiber Communication, IOOC '99, San Diego, California, USA, 21 - 26 Feb 1999, paper THE2, Vol. 3 , pp. 69 - 71

1998

249. W.S. Chan, F. Tong, L.K. Chen, C.K. Chan, D. Lam, "Novel variable bit-rate bandwidth limiter for optical transmission system," , OFC 1998, 1998.

250. F. Tong, C.K. Chan, L.K. Chen, D. Lam, "Fault Surveillance Schemes for Optical Components and Systems Using Fiber Bragg Gratings and Optical Amplifiers as Monitoring Sources," OSA Trends in Optics and Photonics, Vol. 20, Optical Networks and Their Applications, Sep 1998, pp. 84 - 90

251. C.K. Chan, F. Tong, L.K. Chen, K.W. Cheung, "Demonstration of an Add-Drop Network Node with Time Slot Access for High-Speed WDMA Dual Bus/Ring Packet Networks," IEEE/OSA Optical Fiber Communication Conference, OFC '98, San Jose, CA, USA, 1998, pp. 62 - 64

252. C.K. Chan, F. tong, L.K. Chen, "A Novel WDM Branching Unit with Automatic Fault Detection," Third Optoelectronics and Communications Conference, OECC '98, Chiba, Japan, 12 - 16 July 1998, paper 14P-8, pp. 202 - 203

253. C.K. Chan, L.K. Chen, K.W. Cheung, "Switching Contrast and Extinction Ratio Degradations due to Asymmetric Directional Gain/Loss and Pulse Pedestal in Optical Switching Using Nonlinear Optical Loop Mirrors," Journal of Optical Communications, April 1998, Vol. 19, pp. 67 - 71

254. J.G. Zhang, L.K. Chen, W.C. Kwong, K.W. Cheung, A.B. Sharma, "Experiments on High-Speed All-Optical Code-Division Multiplexing (CDM) Systems Using a 2n Prime Code," International Conference on Communications, ICC '98, Altanta, GA, USA, 7 - 11 June 1998, Vol. 3, pp. 1294 - 1298

255. C.K. Chan, F. Tong, L.K. Chen, D. Lam, "A Fault Tolerant WDM Branching Unit for Long-Hall Multi-wavelength Transmission Systems," IEEE Lasers and Electro-Optics Society Annual Meeting, LEOS '98, Orlando, Florida, USA, 1 - 4 Dec 1 - 4, paper FE2, pp. 321 - 322

256. K.P. Ho, C.K. Chan, F. Tong, L.K. Chen, "Exact Analysis of Homodyne Crosstalk Induced Penalty in WDM Networks," IEEE Photonics Technology Letters, March 1998, Vol. 10, No. 3, pp. 457 - 458

257. C.K. Chan, L.K. Chen, F. Tong, K.W. Cheung, "Realization of A Time-Slot Access WDMA Dual Bus/Ring Packet Network Node Using Centralized Light Sources," OSA Trends in Optics and Photonics, Vol. 20, Optical Networks and Their Applications, Sep 1998, Reprint from IEEE Photonics Technology Letters, Dec 1997, Vol. 9, No. 12, pp. 1661 - 1663

258. J.G. Zhang, L.K. Chen, W.C. Kwong, "Experimental Demonstration of Efficient All-Optical Code-Division Multiplexing," IEE Electronics Letters, 17 Sep 1998, Vol. 34, No. 19, pp. 1866 - 1868

259. C.K. Chan, F. Tong, L.K. Chen, "Wavelength-Matching Scheme for Wavelength Grating Routers in All-Optical Transport networks," IEE Electronics Letters, 5 March 1998, Vol. 34, No. 5, pp. 490 - 491

260. E. Kong, C.K. Chan, F. Tong, L.K. Chen, "A Novel Optical Cross-Connect with Built-in Optical-Path Supervisory Scheme For All-Optical Networks," European Conference on Optical Communication, ECOC '98, Madrid, Spain, 20 - 24 Sep 1998, paper WdD10, pp. 585 - 586

261. C.K. Chan, E. Kong, F. Tong, L.K. Chen, "A Novel Wavelength-Matching Scheme for Wavelength Routers Without Any Reference Sources," SPIE Photonics Taiwan '98, July 1998, pp. 58 - 60

262. K.P. Ho, C.K. Chan, F. Tong, L.K. Chen, "Exact Analysis of Homodyne Crosstalk Induced Penalty in Optical Networks," SPIE Photonics Taiwan, July 1998, pp. 72 - 77

263. C.K. Chan, E. Kong, F. Tong, L.K. Chen, "A Novel Optical-Path Supervisory Scheme for Optical Cross Connects in All-Optical Transport Networks," IEEE Photonics Technology Letters, June 1998. Vol. 10, No. 6, pp. 899 - 901

264. W.S. Chan, F. Tong, L.K. Chen, C.K. Chan, D. Lam, "Variable Bit Rate Limiter for On-Off-Keying Optical Links," IEE Electronics Letters, 8 Jan 1998, Vol.34, No.1, pp. 108 -110

1997

265. C.K. Chan, W.S. Chan, F. Tong, L.K. Chen, D. Lam, "System Demonstration of An In-Service Passive Surveillance Scheme for Opticaly Amplified Branched Optical Networks," IEEE CLEO/Pacific Rim '97, TuP5, Chiba, Japan, 1997, pp. 52 - 53

266. C.K. Chan, J. Song, F. Tong, L.K. Chen, D. Lam, "A Passive Surveillance Scheme for Passive Branched Optical Networks," IEEE/OSA Optical Fiber Communications Conference, OFC ' 97, Dallas, Texas, USA, 1997, pp. 51 - 52

267. J.G. Zhang, W.C. Kwong, L.K. Chen, K.W. Cheung, "Synchronous All-Optical Code-Division Multiple-Access Networks," European Transactions on Telecommunications, ETT, 1997, Vol. 8, No. 2, pp. 179 - 190

268. C.K. Chan, L.K. Chen, F. Tong, K.W. Cheung, "Realization of a Time-Slot Access WDMA Dual Bus/Ring Packet Network Node Using Centralized Light Sources," IEEE Photonics Technology Letters, Dec 1997, Vol. 9, No. 12, pp. 1661 - 1663

269. C.K. Chan, L.K. Chen, F. Tong, D. Lam, "A Novel Passive Surveillance Scheme for Optical Transmission Systems with Multiple In-Line Optical Amplifiers," IOOC - ECOC '97, Edinburge, UK, 22 - 25 Sep 1997, No. 448, pp. 287 - 290

270. C.K. Chan, F. Tong, L.K. Chen, J. Song, D. Lam, "A Practical Passive Surveillance Scheme for Optical Amplified Passive Branched Optical Networks," IEEE Photonics Technology Letters, April 1997, Vol. 9, No. 4, pp 526 - 528

271. C. Su, L.K. Chen, K.W. Cheung, "Theory of Burst-Mode Receiver and Its Application in Optical Multiaccess Network," IEEE Journal of Lightwave Technology, April 1997, Vol. 15, No. 4, pp. 590 - 606

272. Y.H. Wang, L.K. Chen, K.W. Cheung, "Performance Study of ACTA as an Efficient High Speed Multi-Channel Integrated Services Network," IEEE International Conference on Communications, ICC 97, Montreal, Que., Canada, 8 - 12 June 1997, pp. 1699 - 1703

273. C.K. Chan, L.K. Chen, F. Tong, D. Lam, "A Novel In-Service Surveillance Scheme for Optically Amplified Transmission Systems," IEEE Photonics Technology Letters, Nov 1997. Vol. 9, No. 11, pp 1520 - 1522

274. C.K. Chan, F. Tong, L.K. Chen, D. Lam, "In-service Passive Surveillance System for Optically-amplified Branched Networks," IEE Electronics Letters, 24 April 1997, Vol. 33, No. 9, pp. 795 - 796

275. C.K. Chan, L.K. Chen, F. Tong, "An In-Service Surveillance Scheme for Optically Amplified Wavelength-Routed Passive Optical Networks," IEEE International Symposium on Communications, ISCOM '97, Taiwan, 1997, pp. 352 - 354

1996

276. L.K. Chen, K.W. Cheung, C.K. Chan, "Technology for 100 Gbits/s Optical Networks," Opto News & Letters, No. 6, National Science Foundation, Taiwan, Aug 1996, pp.13 - 17

277. Y.H. Wang, L.K. Chen, K.W. Cheung, "Performance Improvement with Slot Reuse on a High Speed Multiaccess Network," International Conference on Communications Technology, ICCT '96, Beijing, China, May 1996, paper 19.04, pp. 623 - 626

278. C.K. Chan, L.K. Chen, "Power Penalty of Ultrafast Time-Division Demultiplexer using Cascaded Multi-Quantum Well Electro-absorption Modulators," International Conference on Communications Technology, ICCT '96, Beijing, PRC, 1996, paper 10.05, pp. 331 - 334

279. C.K. Chan, L.K. Chen, K.W. Cheung, "A Fast Channel-Tunable Optical Transmitter for Ultrahigh-Speed All-Optical Time-Division Multiaccess Networks," IEEE Journal on Selected Areas in Communications, June 1996, Vol. 14, No. 5, pp. 1052 -1056

280. J. Song, C.K. Chan, L.K. Chen, F. Tong, K.W. Cheung, "Sensitivity Improvement for NRZ Optical Systems using NALM and Narrow-Band Filter," IEEE Laser and Electro-Optics Society Annual Meeting, LEOS '96, WO2, Boston, USA, 1996, pp. 111 - 112

281. C.K. Chan, L.K. Chen, K.W. Cheung, "Fundamental Switching Contrast and Extinction Ratio Degradations in Ultrafast All-Optical Switching Using Nonlinear Optical Loop Mirrors," IEEE Laser and Electro-Optics Society Annual Meeting, LEOS 96, WAA3, Boston, USA, 1996, pp. 213 - 214

282. J. Song, C.K. Chan, F. Tong, L.K. Chen, "Extinction Ratio Induced Crosstalk System Penalty in WDM Networks," IEE Electronics Letters, 7 Nov 1996, Vol. 32, No. 23, pp. 2112 - 2114

283. C.K. Chan, L.K. Chen, "A Correction Scheme for Measurement Accuracy Improvement in MultiChannel CATV Systems," IEEE Transactions on Broadcasting, June 1996, Vol. 42, No. 2, pp. 122 - 129

1995

284. C.K. Chan, L.K. Chen, K.W. Cheung, "Switching contrast degradation in ultrafast all-optical switching using nonlinear amplifying loop mirrors," IEEE International Symposium on Communications, ISCOM '95, Taipei, Taiwan, 27 - 29 Dec 1995, pp. 575 - 580

285. C.K. Chan, L.K. Chen, "Dynamic-range Penalty of Analog Optical Feeders for Fiber-Optic Microcellular Systems in the Presence of Co-Channel Interference and Multipath Fading," IEEE International Symposium on Communications, Taipei, Taiwan, 27 - 29 Dec 1995, pp. 569 - 574

286. C. Su, L.K. Chen, K.W. Cheung, Y. Ota, "BER and Power Penalty Measurement of Burst-Mode Receiver for All-Optical Multiaccess Networks," International Conference on Integrated Optics and Optical Fibre Communication, IOOC '95, Hong Kong, 26 - 30 June 1995, Vol. 4, pp 84 - 85

287. Y.H. Wang, L.K. Chen, K.W. Cheung, H.S. Wang, "Performance of MPEG-1 Video on Multiaccess Integrated Network," Asia-Pacific Conference on Communications, APCC '95, Osaka, Japan, 13 - 16 June 1995, Vol. 2/2, pp. 628 - 631

288. J.G. Zhang, Wing C. Kwong, L.K. Chen, K.W. Cheung, "A Feasible Architecture for High-speed Synchronous CDMA Distribution Network Using Optical Processing," IEEE GLOBECOM'95, Singapore, 13 - 17 Nov 1995, pp. 1794 - 1798

289. Y.H Wang, L.K. Chen, K.W. Cheung, "Performance of Integrated Services on a High Speed Multimedia Network," IEEE GLOBECOM'95, Singapore, 13 - 17 Nov 1995, pp. 780 - 784

290. C.K. Chan, L.K. Chen, K.W. Cheung, "Experimental demonstration of a high-speed all-optical tunable-channel multi-access (TCMA) network," IEEE GLOBECOM'95, Singapore, 13 - 17 Nov 1995, pp. 1761 - 1765

291. C.K. Chan, L.K. Chen, "Theoretical Analysis of High Repetition Rate Optical Pulse Multiplication Using Fiber-Coupler Loop Configuration," IEEE Photonics Technology Letters, Oct 1995, Vol. 7, No. 10, pp. 1145 - 1147

292. C. Su, L.K. Chen, K.W. Cheung, "BER Performance of Digital Optical Burst-Mode Receiver in TDMA All Optical Multiaccess Network," IEEE Photonics Technology Letters, Jan 1995, Vol. 7, No. 1, pp. 132-134

1994

293. C.K. Chan, L.K. Chen, "High Repetition Rate Optical Pulse Train Generation Using Optical Loop Mirror," IEEE Conference on Lasers and Electro-Optics Europe, CLEO/Europe '94, Amsterdam, Netherlands, 28 Aug - 2 Sep 1994, pp. 311 - 312

294. C. Su, L.K. Chen, K.W. Cheung, "BER Penalty of Burst-Mode Receiver in Optical Multiaccess Network," IEEE Lasers and Electro-Optics Society Annual Meeting, LEOS '94, Boston, MA, USA, 31 Oct - 3 Nov 1994, pp. 198 - 199

295. C. Su, L.K. Chen, "Analysis of Fundamental Nonlinear Distortions in Optical Source and the Effect on SCM Optical Networks," International Conference on Communication Technology, ICCT '94, Shanghai, China, 8 - 10 June 1994, pp. 1326 - 1329

296. C. Su, L.K. Chen, C.K. Chan, "Comparison of Different Types Optical Receivers in AM-VSB Optical SCM Systems," International Conference on Communication Technology, ICCT '94, Shanghai, China, 8 - 10 June 1994, pp. 222 - 223

297. C.K. Chan, L.K. Chen, "Efficient Frequency Assignment Scheme for Intermodulation Distortion Reduction in Fiber-optic Microcellular Systems," IEE Electronic Letters, 27 Oct 1994, Vol. 30, No. 22, pp 1831 - 1832

298. C. Su, L.K. Chen, K.W. Cheung, "Inherent Transmission Capacity Penalty of Burst-mode Receiver for Optical Multiaccess Networks," IEEE Photonics Technology Letters, May 1994, Vol. 6, No. 5, pp. 664 - 667

1993

299. K.W. Cheung, L.K. Chen, C. Su, C.T. Yeung, P.T. To, "Tunable-Channel Multi-Access (TCMA) Networks: A New Class Of High-Speed Networks Suitable For Multimedia Integrated Networking," SPIE-Multigigabit Fiber Communication System, San Diego, CA, USA, July 1993, Vol. 2024, pp. 122 - 133

300. C. Su, L.K. Chen, K.W. Cheung, "System Degradations for Clock and Phase Recovery of Digital Burst-Mode Optical Receiver," IEEE International Symposium on Communications, Hsinchu, Taiwan, Dec 1993, Vol. 2, pp. 29 - 36

1991

301. L.K. Chen, K.Y. Lau, D.R. Huber, "Fundamental Distortion Characteristics of the erbium Fiber Amplifier," IEEE/OSA Optical Fiber Communications Conference, OFC '91, San Diego, U.S.A, 18 - 22 Feb 1991, pp. 112

302. L.K. Chen, K.Y. Lau, Y. Trisno, "Frequency Planning For Non-Linear Distortion Reduction in Wideband Transmission," IEE Electronics Letters, 4 July 1991, Vol. 27, No. 14, pp. 1293 - 1295

1990

303. Yudhi S. Trisno, L.K. Chen, David R. Huber, "Linearized external modulator for analog applications," High-Frequency Analog Fiber Optic Systems, 1990, USA, San Jose, 1990.