脉宽易变的高功率Nd:YAG激光器  

High power Nd: YAG laser with variable pulse widths

作　　者：林礼煌[1] 欧阳斌[1] 康玉英[1] 葛文[1] 陈时胜[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光学学报》1991年第5期413-418,共6页Acta Optica Sinica

基　　金：国家自然科学基金

摘　　要：本文描述一台由两级Nd:YAG激光器组成的紧凑高功率激光系统的结构及其工作性能。激光系统分成三个部分:对撞脉冲式的主-被动锁模振荡器,单脉冲选择器和四程放大器。振荡器输出锁模脉冲列的包络幅度起伏小于±4％,其脉冲宽度可以在宽范围内(20ps～2.5ns)方便地切换。对于单个0.1mJ、200ps的激光脉冲,四程放大器能提供7×10~2的放大倍数。In this paper the construction and operation characteristics of a high power Nd r YAG laser system are described. The laser system consists of an active-passive mode-looked oscillator in colliding pulse regime, a single pulse selector and a fourpass amplifier. The oscillator generates mode-locked pulse trains with widely variable pulsewidths (20ps～2.5ns) and a fluctuation of the pulse-train envelope <±4%. For a 0.1mJ, 200-ps laser pulse, the four- pass amplification of 7×102 has been achieved.

关 键 词：锁模激光器 对撞脉冲锁模 

分 类 号：TN248.35[电子电信—物理电子学]