增益平坦的多波长泵浦宽带拉曼光纤放大器  

Broadband gain-flattened multiwavelength pumped Raman fiber amplifier

作　　者：颜玢玢[1] 王葵如[1] 余重秀[1] 徐大雄[1] 桑新柱[1] 刘怡臻[1] 忻向军[1] 全升学[1] 贾亚英 

机构地区：[1]北京邮电大学电子工程学院,北京100876 [2]中国网通张家口分公司网管中心,河北张家口075000

出　　处：《光学精密工程》2006年第2期155-158,共4页Optics and Precision Engineering

基　　金：北京市教育委员会共建项目建设计划资助(No.XK100130437)

摘　　要：在分析拉曼光纤放大器(RFA)原理的基础上,采用遗传算法对5波长后向泵浦拉曼光纤放大器的波长和功率进行了优化设计。实验采用位于5个波长处的7个泵浦激光器和100.8 km的色散位移光纤,实现了带宽为90 nm、开关增益为15.55 dB、增益平坦度为0.87 dB的拉曼放大,其平均有效噪声系数为-3.5 dB,与理论分析结果一致。Based on analyzing the principle of the Raman Fiber Amplifier（RFA）, optimal design of a backward pumping Raman fiber amplifier with five different pump wavelengths was carried out. With seven pump lasers at five different wavelengths and a 100.8 km dispersion-shift fiber, a broadband optical Raman fiber amplifier with gain band over 90 nm, on off gain of 15.55 dB, gain flatness below 0.87 dB and average effective noise coefficient of -3.5 dB was demonstrated experimentally. The experimental results agree with the theoretical calculation.

关 键 词：拉曼光纤放大器 色散位移光纤 开关增益 增益平坦 有效噪声系数 

分 类 号：TN253[电子电信—物理电子学]