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People > Academic Staff > Prof Hon Ki TSANG
Hon Ki TSANG
Professor & Chairman of Electronic Engineering Department
BA(Cambridge), MA(Cambridge), Ph.D.(Cambridge), C.Eng., MIEE, MHKIE, SMIEEE

hktsang@ee.cuhk.edu.hk
+852 3943 8254
http://www.ee.cuhk.edu.hk/~hktsang/
Rm 406, Ho Sin Hang Engineering Building

Resume of Career

Hon Tsang received the B.A. (Hons) degree in 1987 in Engineering (Electrical and Information Sciences), and the Ph.D. and M.A. degrees in 1991, all from the University of Cambridge. He worked on Quantum Confined Stark Effect waveguide modulators as a visitor at Bell Communications Research Inc. (Bellcore) in 1990. After three years as a postdoc at the University of Bath, he joined the Chinese University of Hong Kong in 1993 as a lecturer in the Department of Electronic Engineering. In 2001 he was appointed Director of ASOC Technology at Bookham Technology plc and moved to Bookham's headquarters in Oxfordshire UK. He rejoined the Chinese University of Hong Kong in 2003 as a professor and was appointed as Chairman of the Department in 2010. Hon Tsang has published over 280 papers in journals or conference proceedings. His recent research interests are in silicon photonics and waveguide components for communication applications (e.g. waveguide grating couplers, graphene waveguide devices for optical interconnects,devices for advanced modulation formats in optical communications ).


Current Research Interests

Graphene and silicon waveguides devices, Optical interconnects, Optical modulators and receivers for advanced optical formats, Silicon photonics for mid-infrared applications, nonlinear waveguide devices


Highlights of Recent Achievements

  • X. Chen (PhD 2010) won award of US$2000 in the TSMC outstanding student research award in the category of Green Electronics in 2010.
  • Paper on how to make polarization independent grating couplers was most downloaded paper in Optics Letters in spring 2011.
  • Apodized focusing grating couplers demonstrated for suspended membrane silicon waveguide.
  • Broadband silicon grating couplers demonstrated for both SOI waveguides and suspended membrane waveguides.
  • Integration of tunable ring resonators with germanium detectors for DQPSK and DPSK receivers


Taught Courses

  • Microoptics
  • Integrated Optics
  • Optical Communications and Interconnects
  • Fiber Lasers


External Service

  • Editor of IEEE Photonics News
  • Research Grants Council (RGC) panel member.
  • Hong Kong Awards For Industries - Machineray and Machine Tools Design judging panel member.
  • Appointed by Secretary for the Envirornment to serve on Disciplinary Tribunal Panel (Electricity Ordinance Chapter 406).
  • Served as external examiner for various graduate degrees at Nanyang Technological Univeristy, City University of Hong Kong and University of Hong Kong.


Publications for the Past 3 Years

Please move your mouse over the Researcher Profile icon below for a selected list of journal publications by H.K.Tsang.   A partial list of recent journal and conference publications may be found by clicking the link within the icon below or clicking here.

 

  1. X. Chen, C. Li and H.K. Tsang, 'Device engineering for silicon photonics', NPG Asia Materials, Vol. 3, pp. 34-40, Jan. 2011.

  2. L. Xu, C. Li, C.Y. Wong and H.K. Tsang, 'DQPSK demodulation using integrated silicon microring resonators', Optics Communications, Vol. 284, pp. 172-175, 2011.

  3. X. Chen and H.K. Tsang, 'Polarization-independent grating couplers for silicon-on-insulator nanophotonic waveguides,' Optics Letters, Vol. 36, pp. 796-798, 2011.

  4. Z. Cheng, X. Chen C.Y. Wong, K. Xu, C.K.Y. Fung, Y.M. Chen and H.K. Tsang, 'Mid-infrared grating couplers for silicon-on-sapphire waveguides,' IEEE Photonics Journal, Vol. 4, pp. 104-113, 2012.

  5. Z. Cheng, X. Chen C.Y. Wong, K. Xu, C.K.Y. Fung, Y.M. Chen and H.K. Tsang, 'Focusing subwavelength grating coupler for mid-infrared suspended membrane waveguide', Optics Letters, Vol. 37, No. 7, pp. 1217-1219. Apr. 2012.

  6. C.Y. Wong, Z. Cheng, X. Chen, K. Xu, C.K.Y. Fung, Y.M. Chen, H.K. Tsang, 'Characterization of mid-Infrared silicon-on-sapphire microring resonators with thermal tuning,' IEEE Photonics Journal, Vol. 4, 2012.

  7. K. Xu, L. Wang, G. K.P. Lei, Z. Cheng, Y. Chen, C.Y. Wong, C. Shu, and H.K. Tsang, 'Demodulation of 20 Gbaud /s differential quadrature phase-shift keying signals using wavelength-tunable silicon microring resonators,' Optics Letters, Vol. 37, pp. 3462-3464, 2012.

  8. X. Chen, K. Xu, Z. Cheng, C.K.Y. Fung and H.K. Tsang, 'Wideband subwavelength gratings for coupling between silicon-on-insulator waveguides and optical fibers,' Optics Letters, Vol. 37, pp. 3483-3485, 2012.

  9. K. Xu, Y. Chen, C. Li, X. Chen, , Z. Cheng, C.Y. Wong and H.K. Tsang, 'An ultracompact OSNR monitor based on an integrated silicon microdisk resonator, IEEE Photonics Journal, Vol. 4, pp. 1365-1371, Oct. 2012.

  10. Z. Cheng, X. Chen, C.Y. Wong, K. Xu, and H.K. Tsang, 'Mid-infrared suspended membrane waveguide and ring resonator on silicon-on-insulator,' IEEE Photonics Journal, Vol. 4, pp. 1510-1519, Oct. 2012.

  11. Z. Cheng, X. Chen, C.Y. Wong, K. Xu, and H.K. Tsang, 'Apodized focusing subwavelength grating couplers for suspended membrane waveguides,' Appl. Phys. Lett., Vol. 101, No. 10, 2012.

  12. K. Xu, Z. Cheng, C.Y. Wong and H.K. Tsang, 'Tunable integrated variable bit-rate DPSK silicon receiver,' Optics Letters, Vol. 37, pp. 4738-4740, 2012.

  13. Z. Cheng, X. Chen, C.Y. Wong, K. Xu and H.K. Tsang, 'Broadband focusing grating couplers for suspended-membrane waveguides,' Opt. Lett., Vol. 37, pp. 5181-5183, 2012.

 




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