摘要
利用啁啾光纤光栅的应变调谐特性,将色散补偿的啁啾光纤光栅斜贴于悬臂梁的侧面,通过应力实现啁啾量调整而改变其色散补偿量的大小,同时利用固定在同一悬臂梁的均匀布拉格光栅传感器,实现了闭环自动控制色散补偿量,研制出了一种新型的光纤光栅动态色散补偿仪。该色散补偿仪工作在1550nm波段,典型性能数据为:色散动态补偿范围-1000～-1680ps/nm,插入损耗小于1.5dB,动态调谐步进响应时间小于50ms,基本上能满足10Gb/s光纤通信系统中色散动态补偿的要求。
A new chirped fiber Bragg grating dynamic dispersion compensator at 1550 nm band is presented by using stain-tuning characteristics of the grating, and using a narrow band fiber Bragg grating fixed on the same bent beam as a sensor for close-loop control of the dispersion compensation amount. Its typical measured data are as follows. Dispersion compensation tunable range was measured to be -1000 - -1680 ps/nm; its insertion loss and dynamic response time were measured less than 1.5 dB and 50 ms, respectively.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2005年第5期681-684,共4页
Chinese Journal of Lasers
基金
国家973计划(2001CCA04600)
中国科学院知识创新试点工程
上海市科委科技发展基金(02dj14001)资助项目。
关键词
光纤光学
啁啾光纤光栅
动态色散补偿
闭环控制
Closed loop control systems
Electromagnetic dispersion
Error compensation
Fiber Bragg gratings
Optical communication
