中国激光, 2004, 31 (s1): 166, 网络出版: 2013-01-29
声光光谱色散滤波器对超短脉冲光谱主动控制技术研究
Active Control of Ultrashort Pulse Spectrmn by Acousto-Optic Programmable Dipersive Filter
光谱学 声光光谱色散滤波器 光谱整形 增益窄化 啁啾脉冲放大 脉冲宽度 spectroscopy acousto-optic programmable dispersive filter (APOD spectra shaping gain narrowing chirped pulse amplification pulse duration
摘要
报道了声光光谱色散滤波器(AOPDF)对啁啾脉冲放大系统中脉冲光谱整形及控制技术的实验研究.声光光谱色散滤波器基于共线的声光相互作用,通过控制声光相互作用的位置,产生不同光谱的位相延迟.由于声波信号的幅值决定了光谱的散射效率,因此控制声波信号的振幅可以获得光波频谱的幅值整形.将声光光谱色散滤波器应用到啁啾脉冲放大系统中,可以很好克服增益窄化效应,使放大后脉冲的光谱保持足够的宽度,最终获得更窄脉宽的压缩脉冲.
Abstract
It is reported that an acousto-optic programmable dispersive fiber (AOPDF) is applied to an ultrashort pulse in the CPA laser system. The AOPDF is based on a collinear acousto-optic interaction· The acoustic frequency is a variable function of time and provides control over the group delay of the diffracted optical pulse. Simultaneously, the spectral amplitude of the diffracted optical pulse is driven by the acoustic signal's intensity. The AOPDF permits precompensation for gain narrowing through amplitude shaping before amplification. The spectra of the amplified pulse keeps sufficient width after compression, and the ultra-short pulse can be obtained.
黄小军, 魏晓峰, 彭翰生, 王晓东, 袁晓东, 刘兰琴, 曾小明, 周凯南, 郭仪, 林东晖, 张小民. 声光光谱色散滤波器对超短脉冲光谱主动控制技术研究[J]. 中国激光, 2004, 31(s1): 166. HUANG Xiao-jun, WEI Xiao-feng, PENG Han-sheng, WANG Xiao-dong, YUAN Xiao-dong, LIULan-qin, ZENG Xiao-ming, ZHOU Kai-nan, GUOYi, LIN Dong-hui, ZHANG Xiao-min. Active Control of Ultrashort Pulse Spectrmn by Acousto-Optic Programmable Dipersive Filter[J]. Chinese Journal of Lasers, 2004, 31(s1): 166.
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