二极管端面泵浦Nd∶GdVO_4高重频声光调Q激光器  

LD end-pumped high repetition rate Q-switched Nd∶GdVO_4 laser

作　　者：王建军[1,2] 张弛[2] 赵书云[2] 邹跃[2] 陈三斌[1,2] 苑利刚[2] 杨涛[2] 

机构地区：[1]固体激光技术国家级重点实验室,北京100015 [2]华北光电技术研究所,北京100015

出　　处：《激光与红外》2010年第5期476-478,共3页Laser & Infrared

摘　　要：采用波长808 nm的光纤耦合输出LD为泵浦源,用Nd∶GdVO4作为激光增益介质,采用端面泵浦方式,通过谐振腔优化设计,达到良好腔模匹配,在LD注入功率20 W的情况下,实现1064 nm激光功率11.3 W的连续输出,光-光转换效率达到56.5%。插入声光调Q器件,通过合理设计腔内激光束腰大小及束腰位置,在重复频率30 kHz时,获得最大调Q输出功率9.2 W,峰值功率30.9 kW,同时,在此基础上,采用KTP晶体腔内倍频,在重复频率为30 kHz时,获得532 nm激光输出平均功率6.3 W。Using a 808 nm fiber-coupled LD as the pumping source and an optimized-designed cavity,an end-pumped Nd∶GdVO4 laser is achieved.When the incident pump power to Nd∶GdVO4 is 20 W,as high as 11.3 W CW output at 1064 nm is obtained.The optical-to-optical conversion is up to 56.5%.Inserting an acousto-optic Q-switch,optimizing the size and the place of beam waist,the maximum Q-switched output is 9.2 W at the repetition rate of 30 kHz,and the peak power is 30.9 kW.Based on the experiment,a piece of KTP is used as the intra-cavity frequency doubling crystal,and a output of 6.3 W at 532 nm is obtained at the repetition rate of 30 kHz.

关 键 词：二极管端面泵浦 Nd∶GdVO4 高重复频率 

分 类 号：TN248.34[电子电信—物理电子学]