Education:

• Ph.D., Electrical Engineering, Politecnico di Torino, Italy, 1993
• M.S., Electrical Engineering, Beijing University of Posts & Telecomm., China, 1988
• B.S., Electrical Engineering, Beijing University of Posts & Telecomm., China, 1982

Teaching:

• Basic Circuits, Devices & Systems (EECS 319)
• Microelectronic Circuits (I ) (EECS312)
• Microelectronic Circuits (III ) (EECS512)
• Fiber Optic Communications (EECS 628)
• Semiconductor Physics (EECS 470)
• Advanced optical communications (EECS 828)
• Fiber-optic Measurement & Sensor (EECS 800)

Service:

• Program Director, Electronics, Photonics and Device Technologies, National Science Foundation (NSF), April 2006-December 2007
• Associate Editor, IEEE Journal of Quantum Electronics(2006 – present)
• Associate Editor, IEEE Transactions on Communications (2001 – 2007)
• Member of technical program committee, Optical Communications Conference (OFC 2004, 2005, 2006)
• Member of University International relations Committee, The University of Kansas
• Member of University Judicial Board, The University of Kansas

Research:

• Optical communication systems and subsystems
• Photonic devices
• Optical measurement and sensors

Affiliations:

Memberships:

• Senior Member, Institute of Electrical and Electronics Engineers (IEEE)

Honors:

• Recipient of the 2002 Miller Award for Research, The University of Kansas

Selected Publications:

• Y. Wan and R. Hui, “Design of WDM Cross Connect Based on Interleaved AWG (IAWG) and a Phase Shifter Array,” IEEE/OSA Journal of Lightwave Technology, Vol. 25, No.6, pp. 1390 – 1400, 2007
• I. Cerutti, A. Fumagalli, R. Hui, P. Monti, A. Paradisi, M. Tacca “Plug and Play Optical (PPO) Nodes: Network functionalities and built-in fiber characterization techniques” OSA Journal of Optical Networking, Vol. 6, No. 6, pp. 642-653, 2007
• W. Shieh, R. Hui, X. Yi, and G. Pendock, “Experimental and Theoretical Study on the Symmetries of Orthogonally Polarized Optical Signals,” IEEE Transactions on Communications, Accepted for publication
• R. Hui, R. Saunders, B. Heffner, D. Richards, B. Fu, and P. Adany, “Non-blocking PMD monitoring in live optical systems,” Electronics Letters, Vol.43, No. 1, pp. 53-54, 2007
• J. R. Unruh, E. S. Price, R. Gagliano L. Stehno-Bittel, C. K. Johnson, and R. Hui “Two-Photon Microscopy with Wavelength Switchable Fiber Laser Excitation,” Optics Express Vol. 14, No. 21, Oct.16, 2006
• Jay R. Unruh, E. Shane Price, Roque Gagliano Molla, Rongqing Hui, Carey K. Johnson, “Evaluation of a Femtosecond Fiber Laser for Two-Photon Fluorescence Correlation Spectroscopy” Microscopy Research and Technique, Vol. 69, Issue 11, PP. 891-893, November 2006
• W. Shieh, R. Hui and X. Yi, “Degree-of-Polarization and Eye-Closure Penalty Associated with Optical Signals with Orthogonal Polarizations,” IEEE Photonics Technology Letters, Vol.18, No. 10, pp. 1122-1124, 2006
• B. Fu and R. Hui, “Fiber Chromatic Dispersion and Polarization-Mode Dispersion Monitoring Using Coherent Detection,” IEEE Photonics Technol. Lett., Vol. 17, No. 7, pp. 1561-1563, 2005
• R. Hui, Y. Wan, J. Li, S. X. Jin, J. Y. Lin, and H. X. Jiang, “III-nitride-based planar lightwave circuits for long wavelength optical communications,” IEEE Journal of Quantum Electronics, Vol. 41, No. 1, pp, 100-110, 2005
• F. Tian, R. Hui, B. Colella, D. Bowler, “Raman crosstalk in fiber-optic hybrid CATV systems with wide channel separations,” IEEE Photonics Technology Letters, Vol. 16, No. 1, pp. 344, 2004
• R. Hui, Y. Wan, J. Li, S. X. Jin, J. Y. Lin, and H. X. Jiang, “Birefringence of GaN/AlGaN optical waveguides,” Applied Physics Letters, Vol. 83, No. 9, pp. 1698-1700, 2003
• R. Hui, S. Taherion, Y. Wan, J. Li, S.X. Jin, J. Y. Lin, and H. X. Jiang, “GaN-based waveguide devices for long wavelength optical communications” Applied Physics Letters, Vol. 82, No. 9, pp. 1326, March 2003
• R. Hui, J. Thomas, C. Allen, B, Fu and S. Gao, “Low-coherent WDM reflectometry for accurate fiber length monitoring,” IEEE Photonics Technol. Lett., Vol. 15, No. 1, January.2003
• R. Hui, C. Demarest and K. Demarest, “PMD-insensitive SCM optical receiver using polarization diversity” IEEE Photonics Technol. Lett., Vol. 14, No. 11, Nov.2002
• R. Hui, B. Zhu, R. Huang, C. Allen, K. Demarest and D. Richards, “Sub-carrier multiplexing for high-speed optical transmission,” IEEE Journal of Lightwave technology, Vol. 20, No. 3, March 2002.
• R. Hui, B. Zhu, R. Huang, C. Allen, K. Demarest and D. Roberts, “10Gb/s SCM system using optical SSB modulation.” IEEE Photonics Technol. Lett., Vol. 13, No. 8, Aug.2001
• H. Y. Pua, K. Peddanarappagari, B. Zhu, C. Allen, K. Demarest and R. Hui, “An adaptive first-order polarization-mode dispersion compensation system aided by polarization scrambling: Theory and demonstration,” IEEE J. Lightwave Technology, Vol. 18, No. 6, pp. 832, June. 2000.
• J. Hong and R. Hui, “Tunable millimeter-wave generation with sub-harmonic injection locking in two-section strongly gain coupled DFB lasers,” IEEE Photonics Technol. Lett., Vol. 12, No. 5, pp. 543, May 2000.
• R. Hui, K. Demarest and C. Allen, “Cross phase modulation in multi-span WDM optical fiber systems,” IEEE J. Lightwave Technology, Vol. 17, No. 7, pp. 1018, June 1999
• R. Hui, B. Zhu, K. Demarest and C. Allen, “Generation of ultra-high speed, tunable-rate optical pulses using strongly gain-coupled, dual-wavelength DFB laser diodes” IEEE Photonics Technol. Lett., Vol. 11, No. 5, pp. 518, 1999.
• C. Johnson, K. Demarest, C. Allen, R. Hui, K. Peddanarappagari and B. Zhu, “Multiwavelength all-optical clock recovery,” IEEE Photonics Technol. Lett., Vol. 11, No. 7, pp. 895, July 1999
• R. Hui, M. Vaziri, J. Zhou and M. O’Sullivan, “Separation of noise from distortion for high-speed optical fiber system link budgeting,” IEEE Photonics Technol. Lett., Vol. 11, No. 7, pp. 910, July 1999
• S. Song, C. Allen, K. Demarest and R. Hui, “A Novel method for measuring polarization-mode dispersion using four-wave mixing,” IEEE J. Lightwave Technology, Vol. 17, No. 12, pp. 2530, Dec.1999.
• S. Song, C. Allen, K. Demarest and R. Hui, “Intensity-dependent phase matching effects on four-wave mixing in optical fibers,”IEEE J. Lightwave Technology, Vol. 17, No. 11, pp. 2285, Nov. 1999
• R. Hui, Y. Wang, K. Demarest and C. Allen, “Frequency response of cross phase modulation in multi-span WDM optical fiber systems,” IEEE Photonics Technol. Lett., Vol. 10, No. 9, pp. 1271, Sept. 1998.
• R. Saunders, A. Robinson, D. Garthe, R. Hui and M. O’Sullivan, “Method of compensating cross phase modulation in 10Gbit/s WDM systems over nonzero dispersion shifted fiber,” IEE Electron. Lett., Vol. 34, No. 18, pp. 1767, Sept. 1998
• R. Hui, M. O’Sullivan, A. Robinson and M. Taylor, “Modulation instability and its impact in multi-span optical amplified systems: Theory and experiments,” IEEE J. Lightwave Technol., Vol.15, No.7, pp. 1071, July 1997.
• R. Hui, D. Chowdhury, M. Newhouse, M. O’Sullivan and M. Poettcker, “Nonlinear amplification of noise in fibers with dispersion and its impact in optically amplified systems,” IEEE Photonics Technol. Lett., Vol. 9, No. 3, pp. 392, March 1997.
• R. Hui and M. O’Sullivan, “Noise squeezing due to Kerr effect nonlinearty in optical fibers with negative dispersion,” IEE Electronics Letters, Vol. 32, No. 21, pp. 2001, Oct.1996.
• R. Hui, ``Static and dynamical properties of dispersive optical bistability in semiconductor lasers,’’ IEEE J. Lightwave Technol., Vol. 13, No. 1, pp. 42, Jan. 1995.
• J. Zhou, R. Hui and N. caponio, ``Spectral broadening of four-wave mixing components on optical fibers,’’ IEEE Photonics Technol. Lett., Vol. 6, No. 3, pp. 434, March 1994.
• R. Hui, M. Kavehrad and T. Makino, ``External feedback sensitivity of partly gain-coupled DFB semiconductor lasers,’’ IEEE Photonics Technol. Lett., Vol. 6, No. 8, pp. 897, Aug. 1994.
• R. Hui, Q. Jiang, M. Kavehrad and T. Makino, “All-optical phase modulation in a traveling wave semiconductor laser amplifier,’’ IEEE Photonics Technol. Lett., Vol. 6, No. 7, pp. 808, July 1994.
• R. Hui, J. G. McInerney and I. Montrosset, “Synchronization of regenerative gain-switched picosecond optical pulse with an optical data stream,” Optics Communications, Vol. 107, pp. 411, May 1994.
• R. Hui, S. Benedetto and I Montrosset, ``Near threshold operation of semiconductor lasers and resonant-type laser amplifier.’’ IEEE J. Quantum Electron. Vol.29, No.6, pp. 1488, June 1993.
• R. Hui, S. Benedetto and I Montrosset, ``Optical frequency conversion using nearly degenerate four-wave mixing in a DFB semiconductor laser: Theory and experiment.’’ IEEE J. Lightwave Techno., Vol. 11, No. 12, pp. 2026, 1993.
• Mecozzi, A. A, D'Ottavi and R. Hui, ``Four wave mixing in semiconductor lasers operating above threshold.’’ IEEE J. Quantum Electron. Vol. 29, No. 6, pp. 1477, June 1993.
• R. Hui, I. Maio and I. Montrosset, ``Analysis of all-electrical automatic gain control of traveling wave laser amplifiers,’’ IEE Proceedings, Part J. Opto-Electronics, Vol. 141, No. 1, pp. 65, Feb. 1993.
• R. Hui, A. Paradisi, S. Benedetto and I Montrosset, ``Dynamics of optically switched bistable laser diodes in the injection-locked state.’’ Optics Letters, Vol.18, No.20, pp. 1733, Oct. 1993.
• R. Hui, S. Benedetto and I Montrosset, ``Optical bistability in diode laser amplifiers and injection-locked laser diodes.’’ Optics Letters, vol. 18, No. 4 , pp. 287, 1993.
• R. Hui, N. Caponio, S. Benedetto and I Montrosset, "Linewidth of a semiconductor laser operating near threshold." IEEE Photonics Technol. Letters, Vol. 4, No. 8, pp. 841, Aug. 1992.
• R. Hui and A. Mecozzi, ``Phase noise of four wave-mixing in semiconductor lasers.’’ Applied Physics Letters, Vol. 60, No. 20, pp. 2454, May 1992.
• R. Hui, S. Benedetto and I. Montrosset, ``Analysis of the direct-discrimination of FSK modulated optical signal using injection-locked DFB lasers.’’ IEE Proceedings, Part J. Opto-Electronics, Vol. 138, No. 4, pp. 276, Aug. 1991.
• R. Hui, A. D'Ottavi, A. Mecozzi and P. Spano, ``Injection locking in distributed-feedback semiconductor lasers.’’ IEEE J. Quantum Electronics, Vol. 27, No. 6, pp.1688, June 1991.
• R. Hui, N. Caponio, P. Gambini, M. Puleo and E. Vezzoni, ``DFB active filter/detector for multi-channel FSK optical transmission.’’ Electronics Letters, Vol. 127, No. 22, pp. 2016, Oct. 1991.
• R. Hui, A. Mecozzi, A. D'Ottavi and P. Spano, ``A novel measurement technique of  factor in DFB semiconductor lasers by injection locking.’’ Electronics Letters, Vol. 26, No. 14, pp. 997, July 1990.
• R. Hui and A. Sapia, ``Nonlinearity difference in the two pass-bands of a DFB semiconductor laser amplifier.’’ Optics Letters, Vol. 15, No. 18, pp. 956, Sept. 1990.
• R. Hui, ``Optical PSK modulation using injection locked DFB semiconductor lasers.’’ IEEE Photonics Technology Letters, Vol. 2, No. 10, pp. 743, Oct. 1990.
• R. Hui, Y. Wu, S. Tao and H. Peng, ``An experimental study on the stable single-frequency semiconductor laser with external cavity.’’ IEEE Photonics Technology Letters, Vol. 1, No. 9, pp. 255, Sept. 1989.
• R. Hui and Y. Wu, ``Noise spectral and frequency chirping in external cavity semiconductor lasers.’’ Optics Letters, Vol. 14, No. 7, 1989.
• R. Hui and S. Tao, ``Improved rate-equation for external cavity semiconductor lasers.’’ IEEE J. Quantum Electronics, Vol. 25, No. 6, pp. 1580, June 1989.
• R. Hui, Y. Wu and C. Shi, "Equivalent current theory on anisotropic optical fibers." Microwave and Optical Technology letters, Vol. 2, No. 9, 1989.
• R. Hui and Y. Wu, ``Linewidth narrowing of external cavity semiconductor lasers with frequency modulation.’’ Microwave and Optical Technology Letters. Vol.2, No.6, 1989.
• Shi, C. and R. Hui, ``Polarization coupling in single-mode, single-polarization optical fibers.’’ Optics Letters, Vol.13, No.12, 1988.
• R. Hui and S. Tao, ``Compact 1.5um external cavity semiconductor lasers and the beat experiment.’’ Acta Electronica Sinica, Vol. 18, No. 3, 1990.
• R. Hui and S. Tao, ``Spectral properties of external cavity semiconductor lasers.’’ Acta Electronica Sinca, Vol. 17, No. 3, 1989.
• R. Hui, C. Shi and S. Tao, ``Polarization characteristic of single-mode semiconductor lasers.’’ Chinese Quantum Electronics, Vol.5, No.1, pp. 61-64, 1988.
• Shi, C. and R. Hui, ``Analysis on an azimuthally inhomogeneous optical fiber by equivalent step-fiber method.’’ Chinese Quantum Electron., Vol.5, No.1, pp.65-73, 1988.

Patents:

• G. Li, T. Makino, R. Hui, “All-optical Q switching to generate ultra-short optical pulse in diode lasers,” US patent 5455836, issued on October 3, 1995.
• M. O’Sullivan, R. Hui and J. Zhou, “Eye distortion mask technique for optical transmission systems,” US patent #5774242, issued in June 1998.
• Garthe D, R. Saunders, R. Robinson, M. O’Sullivan and R. Hui “Optical transmission systems with cross-phase modulation compensation,” European Patent # 98306290.2-2211, issued in November 1998. US Patent # US6124960, issued, Sept.26, 2000.
• J. Hong, R. Hui, M. O’Sullivan, “Generation of short optical pulse using strongly complex coupled DFB lasers,” US patent # US6069906, issued May 30, 2000
• R. Hui, Jin Hong and M. O’Sullivan, “Method and devices for encoding data into high speed optical pulse train,” US patent 6438148, issued August 20, 2002
• H.Y. Pua, C. Allen, K. Demarest, R. Hui, K. Peddanarappagari, “Method and apparatus to compensate for polarization mode dispersion,” US Patent 6,459,830, issued October 1, 2002
• R. Hui and M. O’Sullivan, “Method and apparatus for high resolution monitoring of optical signals” US Patent 6,493,088, issued on December 10, 2002
• K. Demarest, C. Johnson, C. Allen, R. Hui and B. Zhu, “Method and apparatus for recovering an optical clock signal,” US patent # 6542274, issued on April 1, 2003
• R. Hui, "Optical domain signal analyzer," US patent # 6697195, issued on February 24, 2004
• R. Hui, C. Allen, and K. Demarest, "Combating PMD-induced signal fading in SCM optical systems with diversity detection," U.S. Patent # 6999688 B1, issued on February 14, 2006
• R. Hui, J. Lin and H. Jiang, “Method and apparatus for use of III-Nitride wide bandgap semiconductors in optical communications,” US patent allowed on Oct. 15, 2007