高能飞秒激光光束锯齿光阑截趾整形  

Serrated-aperture Apodizers of High-energy Ultrashort Pulse-laser Beam

作　　者：夏兰[1] 钱列加[2] 

机构地区：[1]上海激光等离子体研究所,上海201800 [2]复旦大学信息学院光科学与工程系,上海200433

出　　处：《中国激光》2004年第1期57-61,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金 (6 0 0 880 0 3);国家 973(G19990 75 2 0 2 3);国家 86 3激光技术资助项目

摘　　要：针对高能飞秒固体激光器光强分布光滑均匀的要求 ,研究了飞秒光束通过锯齿光阑和空间滤波器的传输特性。和单色激光的衍射不同 ,宽带的飞秒光束衍射调制较小 ,直接利用锯齿光阑 。In this paper, the transmission features of the ultra-short pulsed-laser passing through the serrated aperture and spatial filter is studied in allusion to clean and uniform intensity distribution in the high-energy ultrashort pulse-laser system. The diffraction modulation of ultrashort pulsed-laser is less than that of CW laser, so only serrated aperture can be used to get uniform near-field uniform intensity distribution.

关 键 词：激光技术 锯齿光阑 截趾 超短脉冲 固体激光器 高能飞秒激光 整形 

分 类 号：TN248.1[电子电信—物理电子学]