采用振荡放大结构的声光调Q Nd∶YAG激光器及光纤传输聚焦系统  

AO Q-switched Nd∶YAG Laser with One Oscillator-amplifier and Its Laser Transmission System

作　　者：陈莹[1] 曾祥江[1] 王立新 王伟祥 

机构地区：[1]北京工业大学激光工程研究院,北京100022

出　　处：《中国激光》2001年第10期870-872,共3页Chinese Journal of Lasers

基　　金：北京市科委科技新星计划资助项目

摘　　要：研究了一种氪灯抽运的双Nd∶YAG棒和声光调制器构成一级振荡加一级放大的声光调QNd∶YAG激光器。动态激光平均输出功率最大达到 16 9W ,在重复频率 1kHz时 ,测得脉宽 70ns,峰值功率达到 5 94kW。用芯径 0 6mm的全石英光纤传输激光 ,并设计了一套聚焦光学系统 。In this paper, a kind of AO Q switched Nd∶YAG laser with one oscillator and one amplifier is studied. The oscillator and the amplifier are composed of two Nd∶YAG rod pumped by Krypton lamp and one AO modulator. The maximum average output power is 169 W. Under the condition of repetition rate 1 kHz, the pulse width is 70 ns, and the maximum peak power is 594 kW. The laser beam is delivered by an all silica fiber with diameter of 0.6 mm and focused by a group of lenses with new designed. A large scale laser deep engraving is realized.

关 键 词：声光调Q激光器 振荡-放大结构 ND:YAG激光器 光纤传输聚焦系统 

分 类 号：TN248.13[电子电信—物理电子学] TN929.11