20TW超短脉冲激光装置的研制  

Design and characterization of 20TW Ti:sapphire laser system

作　　者：黄小军[1] 魏晓峰[1] 彭翰生[1] 王晓东[1] 袁晓东[1] 周凯南[1] 郭仪[1] 曾小明[1] 林东晖[1] 刘兰琴[1] 张小民[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2003年第12期1191-1194,共4页High Power Laser and Particle Beams

基　　金：中国工程物理研究院基金资助课题

摘　　要：　介绍了基于啁啾脉冲放大技术的20TW全钛宝石超短脉冲激光装置的研制。该装置的主放大器采用全像传递的空间四程放大构型,可以保持良好的近场分布和提高能量转换效率。主放大器的钛宝石晶体为30mm×15mm,6台调Q倍频的YAG激光器泵浦。压缩后脉宽50fs,能量1J,峰值功率可达20TW,聚焦功率大于3×1018W/cm2。The design and characterization of a Ti:sapphire high-intensity laser system is presented. A spatial four-pass image-delayed amplifier, which can output good quality beam, is employed in the system. The system is demonstrated in order to reach the intensity in excess of 3×10^(18)W/cm^2 for ultra-intensity field experiments. In order to decrease the effects of gain narrowing, an acousto-optic programmable dispersive filter is applied after the femtosecond oscillator.

关 键 词：钛宝石晶体 啁啾脉冲放大 峰值功率 像传递 转换效率 滤波器 

分 类 号：TN245[电子电信—物理电子学]