WIDELY TUNABLE LONG-PERIOD WAVEGUIDE GRATING COUPLERS

摘要：

We demonstrate two widely tunable optical couplers formed with parallel polymer long-period waveguide gratings (LPWGs). One of the couplers consists of two parallel gratings and shows a peak coupling efficiency of ～60％. Its output transmission spectra can be tuned thermally with a sensitivity of 4.7 nm/°C. The other coupler consists of an array of ten widely separated gratings. A peak coupling efficiency of ～11％ is obtained between the two best matched gratings in the array. The output spectra can be tuned thermally with a sensitivity of -3.8 nm/°C. These couplers can be used potentially as add/drop multiplexers and signal dividers.

关键词： Long-period grating optical add/drop multiplexer optical coupler optical filter optical waveguides.

作者: Yukun Bai Qing Liu Kar Pong Lor Kin Seng Chiang

作者单位: Optoelectronics Research Centre and Department of Electronic Engineering City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China

会议类型: 国际会议

会议名称: The 5th International Conference on Optical Communications and Networks & the 2nd International Symposium on Advances and Trends in Fiber Optics and Applications(第5届国际光通信与网络年会暨第2届纤维光学发展现状与未来趋势国际学术研讨会)

会议地点: 成都

会议语种:英文

页码: 188-191

在线出版日期: 2006-09-18（万方平台首次上网日期，不代表论文的发表时间）