温度对L波段EDFA增益斜率影响的实验研究  

Experimental investigations of temperature-dependent characteristics of L-band EDFA gain-tilt

作　　者：胡永刚[1] 义理林[1] 陈险峰[1] 

机构地区：[1]上海交通大学,上海200240

出　　处：《光通信研究》2012年第3期62-64,共3页Study on Optical Communications

摘　　要：实用的L波段EDFA(掺铒光纤放大器)常采用多段铒纤和多泵浦的复杂结构。对一种复杂结构的L波段EDFA的温度特性进行了实验研究,发现在不同的输入光功率下,L波段短波侧(约1 570～1 582nm)的增益谱可按相反的方式随温度而变化,并从理论上解释了此现象。实验结果表明,铒纤的温度和增益斜率之间仍然存在很好的线性关系。控制铒纤温度就可以调整L波段EDFA的增益斜率,获得平坦的增益。Practical L-band Erbium-Doped Fiber Amplifiers（EDFA） often adopt multi-stage Erbium-doped fiber and multi-pump lasers.In this paper,the temperature characteristic of an L-band EDFA with such a complex configuration is experimentally investigated.It is found that the gain spectra of the short-wavelength（about 1 570~1 582 nm） side of the L-band change with temperature in a reverse direction,which is theoretically explained.The experimental results show that there is still a good linear relationship between the Er-doped fiber temperature and the L-band EDFA gain tilt.Thus,the gain tilt of L-band EDFA can be adjusted by controlling the fiber temperature so as to achieve flattened gain.

关 键 词：L波段 掺铒光纤放大器 增益斜率 温度 

分 类 号：TN722.7[电子电信—电路与系统]