被动调Q高功率脉冲串激光器  

Passive Q-switch high power burst laser

作　　者：李宏斌[1] 董怡[2] 王鹏飞[3] 金煜坚[3] 李久喜[3] 冯江[3] 李强[3] 

机构地区：[1]华北光电技术研究所,北京100015 [2]中国人民解放军驻十一所军事代表室,北京100015 [3]固体激光技术国家级重点实验室,北京100015

出　　处：《激光与红外》2012年第7期762-765,共4页Laser & Infrared

摘　　要：介绍了一种以激光测距机为主要应用背景的高功率脉冲串激光器,该激光器在设计上采用了紧包漫反射聚光腔单只氙灯泵浦Nd∶YAG,应用了Cr4+∶YAG晶体被动调Q技术,实现了稳定的脉冲串方式工作状态,在10 Hz频率下,脉冲串输出能量大于800 mJ。利用有限元分析软件分析了冷却液流路,改进了聚光腔端盖结构设计,提高了激光器的环境适应性及器件可靠性。The article reports a high power burst laser for laser range-finder application.It uses the technology of passive Q-switch with crystal of Cr4^＋∶ YAG,in order to achieve the steady burst pulses.With the suitable design of the YAG crystal and the cavity,it can achieve the energy of 800 mJ when the pulse frequency is 10 Hz,it also gives good beam quality.Using the software of CF design to analyze the cooling liquid,it optimizes the design of the structure and enhances the suitability and the credibility of the LASER for possible environment.

关 键 词：脉冲串 Cr4+∶YAG晶体 被动Q开关 小信号透过率 热时间常量 

分 类 号：TN248[电子电信—物理电子学]