Sinusoidally chirped fibre Bragg gratings

被引：2
|
作者：
Zhang, L [1 ]
Yang, CX [1 ]
机构：
[1] Tsing Hua Univ, Dept Precis Instruments, Beijing 100084, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2003年 / 20卷 / 08期
关键词：
Band-width utilization - Channel uniformity - Chirped fiber grating - Chirped fibre Bragg gratings - Dispersion compensator - Fiber gratings - Multichannel filters - Performance of fibres - Reflection spectrum - Wavelength multiplexing;
D O I：
10.1088/0256-307X/20/8/332
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A sinusoidal chirp structure is proposed to improve the performance of fibre gratings as dispersion compensators and multichannel filters. Nearly ideal reflection spectra from sinusoidally chirped fibre gratings are exhibited. The bandwidth utilization defined as the ratio of -1 dB to -30 dB bandwidths could be higher than 0.85, even up to 0.985. The sinusoidal chirp can be applied to the sampled fibre gratings to enhance channel uniformity. We demonstrate 141 uniform channels with a 25-GHz spacing for high dense wavelength multiplexing applications.
引用
收藏
页码：1293 / 1295
页数：3
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