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可编程声光色散滤波器在10 Hz飞秒再生放大系统中的应用
引用本文:王二玉,胡婉约,李文雪,丁良恩.可编程声光色散滤波器在10 Hz飞秒再生放大系统中的应用[J].光学学报,2006,26(12):887-1891.
作者姓名:王二玉  胡婉约  李文雪  丁良恩
作者单位:华东师范大学物理系,光谱学与波谱学教育部重点实验室,上海,200062
基金项目:致谢 作者真诚感谢徐至展院士对本项目的悉心指导和中国科学院上海精密机械研究所冷雨欣博士等给予的多方面帮助.
摘    要:报道了在10 Hz飞秒再生放大超快激光系统中,运用可编程声光色散滤波器(AOPDF)对注入再生放大的种子光进行频谱整形和色散预补偿,使钛宝石激光系统输出光脉冲谱线半峰全宽由原来的38 nm展宽到66 nm,压缩后输出脉冲宽度从35 fs减小到20 fs。实验结果表明,利用可编程声光色散滤波器能够同时独立进行光谱整形和大范围内色散补偿的特性,可以有效抑制啁啾脉冲放大过程中存在的谱线增益窄化效应,补偿钛宝石激光系统中存在的残留色散。这为进一步研制小于20 fs,10 TW量级钛宝石激光系统奠定了基础。

关 键 词:超快光学  光谱整形  可编程声光色散滤波器  增益窄化  色散补偿
文章编号:0253-2239(2006)12-1887-5
收稿时间:2006-01-10
修稿时间:2006-04-05

Application of Acoustic-Optic Programmable Dispersive Filter in 10 Hz Femtosecond Regenerative Amplifier System
Wang Eryu,Hu Wanyue,Li Wenxue,Ding Liangen.Application of Acoustic-Optic Programmable Dispersive Filter in 10 Hz Femtosecond Regenerative Amplifier System[J].Acta Optica Sinica,2006,26(12):887-1891.
Authors:Wang Eryu  Hu Wanyue  Li Wenxue  Ding Liangen
Institution:Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062
Abstract:The spectrum width is expanded from 38 nm to 66 nm, and the output laser pulse is consequently squeezed from 35 fs to 20 fs in the 10 Hz femtosecond regenerative amplifier, with an acoustic-optic programmable dispersive filter(AOPDF) for dispersion pre-compensation and spectrum shaping of the input seed pulses. The experimental results show that the AOPDF can make spectrum shaping and dispersion compensation in a large range simultaneously and independently, depress effectively the spectrum gain narrowing in the chirped pulse amplification and compensate the residual dispersion in the Ti∶sapphire laser system. The result paves the way for the development for 20 fs, 10 TW Ti∶sapphire laser.
Keywords:ultrafast optics  spectrum shaping  acoustic-optic programmable dispersive filter  gain narrowing  dispersion compensation
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