一种基于新型长周期光纤光栅的动态增益均衡器  

A Dynamic Gain Equalizer Based on a Novel Long-Period Fiber Grating Filter

作　　者：朱涛[1] 饶云江[1] 冉曾令[1] 王义平[1] 江建[1] 

机构地区：[1]重庆大学光电工程学院,重庆400044

出　　处：《光子学报》2003年第3期283-285,共3页Acta Photonica Sinica

基　　金：国家杰出青年科学基金 ( 6 0 0 2 5 5 15 )部分资助项目

摘　　要：报道了一种用高频CO2 激光脉冲写出的长周期光纤光栅的温度特性和弯曲特性 .实验表明 ,这种长周期光纤光栅的波长漂移随温度的变化呈线性关系 ,它的透射峰幅值变化随弯曲量的变化也呈线性关系 .基于这两种线性关系 ,通过控制新型长周期光纤光栅的谐振峰位置和幅度 ,动态平坦了一组掺铒光纤放大器增益谱线 .实验结果表明在C波段 32nm范围内掺铒光纤放大器增益谱线平坦度可动态调整为± 0 .7dB .A novel approach to writting long-period fiber grating by high-frequency CO 2 laser pulses is proposed.This paper showed that the wavelength shifts and transmission amplitudes of the new long-period fiber grating are linear with temperature and bending for the first time to my knowledge, respectively. It was used for flatting the gain of erbium-doped fiber amplifiers (EDFAs) in this paper. The experimental result shows that the gain profile of EDFAs was flatten to within ±0.7 dB over a 32 nm bandwidth.

关 键 词：高频CO2激光脉冲 长周期光纤光栅 掺铒光纤放大器 动态增益平坦 

分 类 号：TN2[电子电信—物理电子学]