• All-optical processing for fiber communication networks: signal regeneration, ultrafast time-division-demultiplexing, wavelength conversion, wavelength multicasting, data format conversion, optical logic gates, and optical clock division
  
  
• Advanced modulation formats for next generation optical communications

• Photonic packaging of critical optical components
  
  
• Innovative design of wavelength-switched pulsed sources and their applications in photonic ADC and optical serial-to-parallel data conversion
  
  
• Novel multi-wavelength laser sources and their applications
  
  
• Investigation of wavelength tuning and tuning dynamics in semiconductor and fiber lasers

• Widely tunable fiber-optic delay schemes based on nonlinear optical signal processing techniques

• All-optical data format conversion and signal regeneration for future communication networks
  
  
• Dynamically tunable birefringence optical comb filters and their applications in multi-wavelength communications
  
  
• New approaches for ultrafast processing of photonic signals using fiber Kerr non-linearity
  
  
• All-optical wavelength converters for dense wavelength-division multiplexing communications
  
  
• Photonic pre-processors for ultrafast analog-to-digital converters
  
  
• A new family of electrically wavelength-tunable semiconductor and fiber lasers
  
  
• Spectral dynamics in gain-switched distributed-feedback laser diode under the influence of weak external feedback
  
  
• III-V based ultrafast metal-semiconductor-metal photodetectors
  
  

• Study of photonic crystal fibers (PCF) for nonlinear optical frequency conversion and photonic sensor applications
  
  
• Silicon-on-insulator optical waveguides: nonlinearities and functional elements
  
  
• Novel techniques for transient protection in optical networks
  
  
• Components for next generation all-optical wavelength-division-multiplexing networks
  
  
• New methods for characterizing and generating ultrashort optical pulses
  
  

• Photonic Packaging Laboratory

• 160 Gbit/s lightwave communication testbed, supported by CUHK Academic Equipment Grant.
  
  
• A novel scheme of wavelength-multiplexing using self-injection locked lasers, supported by the Croucher Foundation.
  
  
• Novel wavelength-tunable devices for broadband optical communications, supported by the British Council UK/Hong Kong Joint Research Scheme.

1. Mable P. Fok, First Prize in 2007 IEEE Hong Kong Section Postgraduate Student Paper Contest and Third Place in 2008 IEEE Region 10 Postgraduate Paper Contest, IEEE.
   
   Paper: Mable P. Fok and Chester Shu, "Tunable optical delay using four-wave mixing in a 35-cm highly nonlinear bismuth-oxide fiber and group velocity dispersion".
   
   
2. Mable P. Fok, Best Research Output Award by Research Postgraduate Students 2007, CUHK.
   
   Paper: M. P. Fok and C. Shu, "Tunable dual-wavelength erbium-doped fiber laser stabilized by four-wave mixing in a 35-cm highly nonlinear bismuth-oxide fiber," Optics Express, USA, vol. 15, no.10, pp. 5925-5930, May 14, 2007.
   
   
3. Gordon Lei, Best Paper Award (1st runner-up), the 8th IEEE LEOS (Hong Kong) Postgraduate Conference, December 2007.
   
   Paper: Gordon Lei, Mable Fok, and Chester Shu, "30-nm self-compensated dispersion tuning of 10-GHz short pulses generated from a SOA ring laser".
   
   
4. Mable P. Fok, 2006 CLEO Meeting Incubic/Milton Chang Student Travel Grants, Optical Society of America, May 2006.
   
   
5. Mable P. Fok, Best Presentation Award, the 6th IEEE LEOS (Hong Kong) Postgraduate Conference, December 2005.
   Paper: Mable P. Fok, W. W. Tang, and Chester Shu, "Higher order repetition rate multiplication for multi-wavelength pulsed source".
   
   
6. Mable P. Fok, 2005 IEEE Lasers and Electro-Optics Society Graduate Student Fellowship. [more]
   
   
7. S. H. Lee, Best Student Paper Award, CLEO/Pacific Rim, July 11-15, 2005, Tokyo, Japan.
   Paper: S. H. Lee, K. K. Chow, Chester Shu, and Chinlon Lin, "All-optical ASK to DPSK format conversion using cross-phase modulation in a nonlinear photonic crystal fiber".
   
   
8. Mable P. Fok, 2005 and 2007 IEEE Lasers and Electro-Optics Society student travel grant(s).
   
   
9. Outstanding Paper Award, 2005 International Symposium on Technology Fusion of Optoelectronics and communications (STFOC'05), May 18-22, 2005, Taipei, Taiwan.
   Paper: Mable P. Fok, W. W. Tang, and Chester Shu, "Optical Pulse Repetition-Rate Multiplication by Spectral Elimination Using a Birefringence Loop Mirror Filter".
   
   
10. K. K. Chow, 2004 Young Scientist Award, Hong Kong Institute of Science. [more]
    
    
11. W. W. Tang, Best Paper Award (2nd runner-up), the 5th IEEE LEOS (Hong Kong) Postgraduate Conference, November 2004.
    
    
12. K. K. Chow, Ph.D. thesis honorable mentioned in the Engineering Faculty Outstanding Thesis Award, CUHK, 2003.
    
    
13. K. L. Lee, Best Paper Award (1st runner-up), the 2nd IEEE MTT/AP/LEOS (Hong Kong) Postgraduate Conference, 2001.
    
    
14. K. K. Chow, Best Paper Award (1st runner-up), the 1st IEEE MTT/AP/LEOS (Hong Kong) Postgraduate Conference, 2000.
    
    
15. K. Chan, M. Phil. thesis honorable mentioned in the Engineering Faculty Outstanding Thesis Award, CUHK 1999.

Postdoctoral/Research Fellows

ZHAO Yang
WANG Dong Ning
LEE Ka Suen
CHOW Kin Kee
LEE Ka Lun
LIANG Tak Keung
TANG Wing Wa
LI Ming (Photonic Packaging Lab)
FOK Mei Po, Mable

Technical Staff

HO Lai Ching, Barbara (Optoelectronics Lab)
CHUNG Pui Shan, April (Photonic Packaging Lab)
YEUNG Mong Tung (Photonic Packaging Lab)

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