飞秒激光脉冲的高效率放大研究  

EFFICIENT FEMTOSECOND Ti:SAPPHIRE SYSTEM WITH MULTIPASS AMPLIFICATION

作　　者：魏志义[1] 张杰[1] 夏江帆[1] 冯宝华[1] 张秀兰[1] 

机构地区：[1]中国科学院物理研究所光物理开放实验室,北京100080

出　　处：《强激光与粒子束》1999年第5期538-542,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金;国家863惯性约束聚变领域资助

摘　　要：介绍了采用多通放大的飞秒脉冲掺钛蓝宝石激光放大系统，分析讨论了提高放大效率及缩短脉冲宽度的技术方法。在仅用能量２９０ｍＪ的倍频Ｎｄ：ＹＡＧ激光泵浦下，得到了输出峰值功率大于１．４ＴＷ、脉宽２５ｆｓ、重复频率１０Ｈｚ的超短超强激光脉冲。A femtosecond Ti:sapphire chirped pulse amplifier with multipass amplification was developed in this paper, new concepts on overcoming gain-narrowing and enhancing amplification efficience arealso introduced. Pulses of 25fs duration with 36mJ energy have been produced at repetition rates of 10Hz onlyunder 290mJ doubled frequency Nd:YAG laser pump, which corresPOnds to 1. 4TW peak power.

关 键 词：啁啾脉冲放大 超强激光 飞秒脉冲 激光 

分 类 号：TN241[电子电信—物理电子学]