基于高双折射光纤环形镜L-band EDFA增益平坦实验  

Gain Flattening of L-band EDFA Based on High-Birefringence Fiber LoopMirror

作　　者：王思劼[1] 刘俭辉[1] 胡智勇[1] 葛春风[1] 李世忱[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院国家教育部光电信息技术科学重点实验室,天津300072

出　　处：《光电子．激光》2004年第9期1053-1057,共5页Journal of Optoelectronics·Laser

基　　金：天津市科技发展基金项目(033800411);辽宁省教育厅资助课题(202320969)

摘　　要：采用高双折射光纤环形镜进行了L bandEDFA的增益平坦实验。调节环内的偏振控制器,可以改变环的反射谱或透射谱的位置和深度;改变环内高双折射光纤的长度,可以改变环的反射谱或透射谱的波长响应周期。适当选取双折射光纤的长度和调节偏振控制器使环形镜的反射谱EDFA的增益谱相匹配。实现了L bandEDFA的增益平坦。双级结构的L bandEDFA经高双折射光纤环形镜平坦后,在1570～1595nm范围内,平均增益18.6dB,增益平坦度达±0.57dB。The gain flattening of L-band EDFA based on high-birefringence fiber loop mirror (Hi-Bi FLM) was experimentally demonstrated. The notch depths and positions of the FLM's reflection and transmission spectrum can be changed by adjusting the PC's in the loop. And the wavelength response period of the FLM varies with the length of Hi-Bi fiber in the loop. In our experiment a reflection spectrum of Hi-Bi FLM that matches the EDFA's ASE spectrum was obtained by using suitable Hi-Bi fiber length and adjusting the PC's. The gain profile of a dual-stage L-band EDFA was flattened to within ±0.57 dB in the wavelength range from 1570 nm to 1595 nm, and an average gain of 18.6 dB was obtained.

关 键 词：双折射光纤 EDFA 增益平坦 L-BAND 反射谱 偏振控制器 增益谱 透射谱 平均 周期 

分 类 号：TN929.11[电子电信—通信与信息系统] TN722[电子电信—信息与通信工程]