摘要
理论分析了啁啾光栅级联应用于波分复用 (WDM)系统中的时延特性 ,时延纹波随光栅级联个数的增多而增大 ,随级联光栅的相邻光栅波长间隔增大而减少。分析采用 8阶高斯适当切趾可以减少光栅间相互影响。
Delay characteristics of cascaded chirped fiber Bragg gratings (CFBGs) have been theoretically analyzed. Delay ripple increases while the number of cascaded CFBGs increases, and also increases as the wavelength interval between neighbor CFBGs decreases. A way to mitigate the effect, namely using 8-order Gaussian apodization when CFBGs are written is found.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2004年第1期77-80,共4页
Chinese Journal of Lasers
基金
国家"86 3"项目 (2 0 0 1AA12 0 2 0 1)
北京交通大学论文攀登基金资助课题
关键词
光纤光栅
光栅级联
时延特性
光栅切趾
光通信
optoelectronics
cascaded CFBG
delay ripple
Gaussian apodization
optical communication
