Picture of Young-Kai Chen

Young-Kai Chen

Murray Hill, NJ, USA


Ph. D,  1988     Cornell University, Ithaca, New York.

MSEE, 1980     Syracuse University, Syracuse, New York.

BSEE,  1976     National Chiao-Tung University, Hsinchu, Taipei.


Young-Kai (Y.K.) Chen, Director of the Communication Science Research Department at Bell Laboratories, Alcatel-Lucent at Murray Hill, New Jersey.

He received his Ph.D. degree from Cornell University in 1988. From 1980 to 1985, he was with the Electronics Laboratory of General Electric Company. Dr. Chen joined Bell Laboratories, Murray Hill, New Jersey in 1988. He was an Adjunct Professor at Columbia University, National Taiwan University and National Chiao-Tung University. He is supporting researchers in the areas of silicon photonics, coherent optical transmission systems and quantum communication.

Honors and Awards

Young-Scientist Award and the Under-40 GaAs Medal 1993, 20th

International GaAs and   Related Compound Symposium, Freiburg, Germany, Sept. 1993.

Fellow of IEEE  (1998)

IEEE David Sarnoff Award (2002)

Bell Laboratories Fellow (2003).

Member of National Academy of Engineering (2004).

Fellow of Optical Society of America (2011).


Professional Activities

Member of IEEE, OSA and NAE.
ABET EAC Accreditation Evaluator on Electrical Engineering.

Selected Articles and Publications

Nonlinear Equalizer for 112-Gb/s SSB-PAM4 in 80-km Dispersion Uncompensated Link

Tapless Locking of Silicon Ring Modulators for WDM Applications

Integrated ultra-wide band wavelength-tunable hybrid external cavity silicon-based laser

Hybrid III-V/Silicon Integration: Enabling the Next Generation of Advanced Photonic Transmitters

Hyper-Wideband Wireless Link with 12GHz Instantaneous Bandwidth Enabled by Silicon Photonics

Optical filter requirements in an EML-based single-sideband PAM4 intensity-modulation and direct-detection transmission system

High Speed Electronics

Hybrid silicon-based tunable laser with integrated reflectivity-tunable mirror

Tunable Single Gain Section Quantum Dot Multi-Wavelength Hybrid III/V-Si Laser

Ten-Channel Discrete Multi-Tone Modulation Using Silicon Microring Modulator Array

Panel Session: Optical Interconnect - VCSEL Photonics vs Silicon Photonics

224-Gb/s PDM-16-QAM Modulator and Receiver based on Silicon Photonic Integrated Circuits

67.41% Data Rate Improvement by Employing Partial Transmit Sequence PAPR Reduction Algorithm and Volterra Filtering in an OFDM Long-Reach PON

56-Gbps 4-PAM System with nearly 40 km Transmission by Using an O-band Electro-Absorption Modulated Laser and a Semiconductor Optical Amplifier

A High Loss Budget 400-Gbps 8-Channel DWDM-OFDM Long-Reach PON with over 60 km Transmission without any In-line or Pre-Amplifier

Comparison of 51.84-Gb/s SSB PAM4 and OOK Signal In An EML-Based IM/DD 80-km Transmission System

112-Gbit/s Intensity-Modulated Direct-Detect Vestigial-Sideband PAM4 over 80km SSMF link

Analog 112 Gb/s PAM-4 modulation over 10 km SSMF using EML and duo-quaternary detection for low-cost data center solutions

Single-Wavelength 112-Gbit/s Transmission over 2 km SSMF using PAM-4 Driver and Clock-and-Data Recovery Circuit

  • Dong, Po, Xiang Liu, Chandrasekhar Sethumadhavan, Lawrence L. Buhl, Ricardo Aroca, Yves Baeyens, and Young-Kai Chen. "224-Gb/s PDM-16-QAM modulator and receiver based on silicon photonic integrated circuits." In National Fiber Optic Engineers Conference, pp. PDP5C-6. Optical Society of America, 2013. 

  • Dong, Po, Young-Kai Chen, Guang-Hua Duan, and David T. Neilson. "Silicon photonic devices and integrated circuits." J. Nanophoton (2014).

  •  C. Doerr, P. J. Winzer, Y. K. Chen, S. Chandrasekhar, M. Rasras, L. Chen, T. Y. Liow, G. Q. Lo, K. W. Ang, “Monolithic polarization and phase diversity coherent receiver in silicon,” IEEE. J. Lightwave Technology (to be published), also, OSA 2009 OFC Postdeadline PDPB2, April 2009, San Diego, CA. 

  • Yang, Qi, Noriaki Kaneda, Xiang Liu, Sethumadhavan Chandrasekhar, William Shieh, and Young-Kai Chen. "Real-time coherent optical OFDM receiver at 2.5-GS/s for receiving a 54-Gb/s multi-band signal." In Optical Fiber Communication Conference, p. PDPC5. Optical Society of America, 2009.

  •  K. Y. Tu, M. Rasras, Y. K. Chen, S. Patel, D. M. Gill, A. White, D. Carothers,  A. Pomerene, J. Beattie, M. Beals, J. Michel, J. Liu, K. C. Kimerling, “CMOS photonic microwave filters for UWB applications,” 2008 IEEE Radio and Wirless Symposium, pp. 551-554, 2008.

  • Mahmoud S. Rasras, Kun-Yii Tu, Douglas M. Gill, Young-Kai Chen, Alice E. White, Sanjay S. Patel, Andrew Pomerene, Daniel Carothers, James Beattie, Mark Beals, Jurgen Michel, and Lionel C. Kimerling, "Demonstration of a Tunable Microwave-Photonic Notch Filter Using Low-Loss Silicon Ring Resonators," J. Lightwave Technol. 27, 2105-2110 (2009)

  • A. Leven, N. Kaneda, Y. K. Chen, “Real-time Implementation of Coherent Systems,” IEEE LEOS 2008 Digest of  Summer Topical Meeting, Invited paper, pp. 129-130, July 2008.

  • A. Leven, N. Kaneda, A. Klein, U.-V. Koc and Y.-K. Chen, “Real-time implementation of 4.4 Gbit/s QPSK intradyne receiver using field programmable gate array,” Electron. Letters, vol. 42, pp. 2006.

    ·       Y. Qi, N. Kaneda, L. Xiang, S. Chandrasekhar, W. Shieh, Y. K. Chen, “Real-time coherent optical OFDM receiver at 2.5-GS/s for receiving a 54-Gb/s multi-band signal,” Post-Deadline Session, pp. 1-3, OFC 2009, March 2009.

    ·       Y. K. Chen,  A. Leven,   T. Hu,   N. Weimann,  K. Y.  Tu,  V. Houtsma, R. Kopf, A. Tate, “ Photonic generation of microwave and millimeter-wave arbitrary waveforms,” Invited Talk 2008 LEOS Ann. Meeting, pp.419-420, Nov. 2008.  

    ·       P. K. Kondratko, A. Leven, Y. K. Chen, J. Lin; U. Koc, K. Y. Tu, J. Lee, "12.5-GHz optically sampled interference-based photonic arbitrary waveform Generator," Photonics Technology Letters, IEEE , vol.17, no.12, pp. 2727-2729, Dec. 2005

    ·       Y. Baeyens; G. Georgiou; J. Weiner; V. Houtsma; P. Paschke; Q. Lee; A. Leven; R. Kopf; J. Frackoviak; C. Chen; C. T. Liu; Y. K. Chen, “InP D-HBT IC's for 40 Gb/s and higher bitrate lightwave transceivers,” IEEE Journal of Solid-State Circuits, Vol. 37, pp. 1152-1159, Sep 2002.

    ·       T. Tanbun-Ek, Y. K. Chen, J. Grenko, E. Byrne, P. Sciortino, A. M. Sergent, and K. Wecht,  “Integrated DFB-DBR laser modulator grown by selective area metalorganic vapor phase epitaxy growth technique,”  Journal of Crystal Growth, vol. 145, (no.1-4), 902-6, Dec. 1994.

    ·       Y. K. Chen and M. C. Wu, "Monolithic Colliding Pulse Mode-Locked Quantum Well Lasers," (Invited Paper), IEEE J. Quantum Electronics, vol. 28, pp. 2176-2185, Oct. 1992.

    ·       Y. K. Chen, R. N. Nottenburg, M. B. Panish, R. Hamm and D. Humphrey, "Subpicosecond InP/InGaAs Heterostructure Bipolar Transistors," IEEE Electron Device Letters, EDL-10, pp. 267-269, 1989.

Books and Chapters

·       B. Kasper, O. Mizuhara, Y. K. Chen, “High Bit-Rate Receivers, Transmitters, and Electronics” chap 16, Optical Fiber Telecommunications IV-A, Ed. Kaminow & Li, Academic Press, San Diego, 2002, ISBN 0-12-395172-0.

·       Y. K. Chen, “Transistors, Microwave” vol. 22, pp. 165-186, Encyclopedia of Applied Physics, Wiley-VCH Verlag, 1998, ISBN 3-527-29475-9/98.


Awarded 33 U. S. patents: six on optoelectronic signal processing, three on photonic integrated circuits, two on the design of broadband MMICs, others including novel three-level coding scheme for multi-gigabit-rate optical link, design of heterojunction bipolar transistors (HBTs) for non-equilibrium carrier transport, monolithic colliding pulse mode-locked semiconductor lasers, novel laser structures of periodic-index separate confinement heterostructure (PINSCH) lasers and self-aligned quantum well lasers, novel MBE growth technique using temperature modulation, etc.