四棒串接连续灯泵浦Nd:YAG大功率激光器  

Four-rod resonator for krypton lamp pumped CW Nd:YAG laser with high power output

作　　者：房明星[1] 李强[1] 姜梦华[1] 左铁钏[1] 

机构地区：[1]北京工业大学激光工程研究院,北京100022

出　　处：《强激光与粒子束》2005年第11期1644-1648,共5页High Power Laser and Particle Beams

基　　金：北京市重点技术创新项目(jcjlz2001-1019)资助课题;国家自然基金项目(10276003)资助课题

摘　　要：报道了一种符合工业应用的四棒谐振腔连续Nd:YAG激光器。实验中采用对称放置方式四棒串接谐振腔得到2 105 W的平均功率输出,光束参数积24 mm.mrad,系统总光电转换效率达到3.5%。还对影响激光器工作的因素进行了理论分析。We present a four-rod series resonator CW Nd：YAG laser for the requirement of industrial application in this paper. The symmetrical resonator laser has been developed and is rated at 2 105 W output power with beam parameter product of 24 mm · mrad. The system＇s total electro-optics efficiency of lamp pumped YAG crystal is as high as 3.5%. The main factors which affect operation of high power solid-state laser module are different positions and thermal focal lengths of crystal rods, and so on. These factors are theoretically analyzed. Conclusions are drawn that the resonator would have the biggest steady range when the rods in it are symmetrically arranged and thermal focal lengths of the rods being not matched can be compensated by adjusting input power of laser system.

关 键 词：ND:YAG激光器 四棒串接谐振腔 热焦距 光束质量 

分 类 号：TN248[电子电信—物理电子学] O43[机械工程—光学工程]