Impact of Spectral Filter on Phase Modulation Pulse in Fiber Front End System  

作　　者：LI Jing WANG Jian-Jun XU Dang-Peng LIN Hong-Huan GENG Yuan-Chao LI Ming-Zhong DENG Ying ZHU Na ZHANG Rui JING Feng 李晶;王建军;许党朋;林宏奂;耿远超;李明中;邓颖;朱娜;张锐;景峰(Research Center of Laser Fusion,China Academy of Engineering Physics,PO Box 919-988,Mianyang 621900)

机构地区：[1]Research Center of Laser Fusion,China Academy of Engineering Physics,PO Box 919-988,Mianyang 621900

出　　处：《Chinese Physics Letters》2011年第3期89-92,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 60878058;the National Key Laboratory of Laser Fusion under Grant No 9140C6803010905.

摘　　要：The transmission characteristics of phase modulation pulse transmitted through the filter in the power amplifier are investigated theoretically and experimentally.The narrow bandpass filter can induce large temporal modula-tion depth for the phase modulation pulse and induce double amplitude modulation(AM)if the frequency shift is lower than half bandwidth of the signal spectrum.We should choose a wider bandwidth filter to minimize the impact of the filter on the output pulse and suppress the amplified spontaneous emission(ASE)for the power fiber amplifier.These results are of benefit to the design of the fiber front end system.

关 键 词：AMPLIFIER FIBER IMPACT 

分 类 号：TN2[电子电信—物理电子学]