基于光栅对的L波段EDFA增益箝制的优化设计  

Optimal Design of L-Band Gain Clamped EDFA Based on Two Bragg Gratings

作　　者：费海峰[1] 余震虹[1] 纪长军[1] 

机构地区：[1]江南大学通信与控制工程学院,江苏无锡214122

出　　处：《江南大学学报（自然科学版）》2008年第2期175-178,共4页Joural of Jiangnan University (Natural Science Edition)　

摘　　要：分析了基于光纤布拉格光栅对并具有动态增益箝制(GC)特性的优化L-EDFA性能,分别从单信道和多信道输入对GC-EDFA的影响进行了模拟.实验结果表明,在信号功率变化和信道丢失时实现了L-EDFA增益的箝制.并在此基础上提出通过增加一级噪声信能优化的EDFA,以改善GC-EDFA的噪声指数.与传统的GC-EDFA相比,该方案结构简单,易于集成.It is significant to propose and theoretically investigate the optimal design of optically gainclamped （GC） L-band （1570～1610 nm） erbium-doped fiber amplifier （EDFA） to control the EDFA gain to ensure that the gain does not vary dramatically in the presence of input power variations or add/ drop of optical channels, in terms of single and multiple-channel schemes by using the two Bragg gratings （FBGs）. Compared with the common GC-EDFA configuration, the optimal GC-EDFA configuration can save the gain equalization filter. In addition, we propose a configuration to improve the noise figure of the GC-EDFA.

关 键 词：L段掺铒光纤放大器 增益箝制 布拉格光栅 噪声指数 波分复用 

分 类 号：TN253[电子电信—物理电子学]