Abstract
Based on our intensive research over the years, a number of fibre optic devices have been successfully developed. Some of them are quite unique in terms of functionality and performance. They are expected to find wide applications in various evolving optical communication systems, especially those using DWDM transmission.

Passive devices
• all-fibre broadband add/drop multiplexers for ultra-wide-band WDM communication systems; all-fibre signal taps for system surveillance; ultra-large-core fibres for dense WDM transmission (design phase); polarization-insensitive waveguide devices for integrated-optic circuits; grating-based waveguide devices for WDM applications

Active devices
• wavelength-tunable CW and pulsed fibre lasers; dynamic gain flatteners for optical fibre amplifiers; multi-wavelength fibre lasers; thermo-optic waveguide modulators and switches (design phase)

Contact Information
Mr H Y Wong
Director, Technology Transfer Office
City University of Hong Kong
83 Tat Chee Avenue
Kowloon, Hong Kong
Tel : (852) 2788 8428
Fax : (852) 2788 9119
Email : hy.wong@cityu.edu.hk

簡介
經過多年辛勤的研究，我們成功開發出一系列光纖通信器件。其中一些器件無論在功能上和效用上都是獨一無二的。它們在發展中的光纖通信系統中，尤其是使用高密度波分復用傳輸的系統中，有可能得到廣泛應用。

無源器件
• 用於極寬帶波分復用通信系統的全光纖寬頻進入取出分波器；系統監察用的全光纖訊號竊聽器；用於高密度波分復用傳輸的超大芯光纖（設計階段）；用於集成光學線路，與偏振無關的波導器件；用於波分復用系統，以光柵為主的波導器件。

有源器件
• 波長可調連續波和脈沖光纖激光器；可調光纖放大器增益平坦器；多波長光纖激光器；熱光效應光波導調制器和開關（設計階段）。

查詢
香港城市大學技術轉移處處長黃漢儀先生
地址 : 香港九龍達之路83號
電話 : (852) 2788 8428
傳真 : (852) 2788 9119
電郵 : hy.wong@cityu.edu.hk