C+L波段分布式拉曼光纤放大器实验研究  

Experimental study on C+L-band distributed Raman fiber amplifier

作　　者：王著元[1] 夏林[1] 王芳[1] 崔一平[1] 

机构地区：[1]东南大学电子工程系,南京210096

出　　处：《东南大学学报（自然科学版）》2004年第3期315-317,共3页Journal of Southeast University：Natural Science Edition

基　　金：国家杰出青年基金资助项目 (60 12 5 5 13 );江苏省高技术研究计划资助项目 (BG2 0 0 2 0 0 7)

摘　　要：采用后向泵浦方式 ,利用波长分别为 1 42 6,1 44 0 ,1 45 4 ,1 472及 1 496nm的大功率半导体激光器作为泵源 ,实现了带宽为 80nm( 1 5 30～ 1 61 0nm)的宽带分布式拉曼光纤放大器 ,对40个信道的信号进行分布式放大 ,获得了较好的增益平坦及噪声特性 .信号经 60km的普通单模光纤传输后 ,平均开关增益为 1 6 5dB ,增益平坦度为 1 5dB ,最大等效噪声指数为 - 0 9dB .采用Agilent 81 66B测试系统的多通道信号源 (C +L band)作为信号源测量增益谱 .由于考虑了信号光之间的相互拉曼作用及信号光对泵浦的影响 ,实验结果更精确 .Using 5 high power laser diodes at 1426, 1440, 1454, 1472 and 1 496 nm, respectively as the multi-pumps, a wideband distributed Raman fiber amplifier (1530 to 1610 nm) was obtained based on backward pump scheme, which was tested by amplifying 40 signal channels. After transmitting 60 km standard single-mode fiber (SSMF), the average on-off gain of signals is 16.5 dB and a gain flatness is 1.5 dB. The maximum effective noise figure (ENF) is -0.9 dB. The multi-channel signal source in Agilent 8166B test system was used to measure the gain spectrum. Since the signal-to-signal Raman interaction and the influence on pump caused by signal are considered, the experimental results are accurate.

关 键 词：分布式拉曼光纤放大器 后向泵浦 开关增益 增益平坦 噪声指数 

分 类 号：TN242[电子电信—物理电子学]