热效应不敏感的Nd∶GdVO_4/KTP全固态绿光激光器设计  

Thermally Insensitive LD Pumped Nd∶GdVO_4/KTP All-solid-state Green Laser

作　　者：刘蓉[1] 李锋[2] 白晋涛[3] 

机构地区：[1]西安工业大学光电工程学院,陕西西安710032 [2]商洛学院,陕西商洛726000 [3]西北大学光子学与光子技术研究所,陕西西安710069

出　　处：《激光与红外》2009年第4期379-382,共4页Laser & Infrared

基　　金：陕西省教育厅专项基金项目(No.05JK185)资助

摘　　要：利用基于传播圆变换理论的图解分析方法,得到了具有激光晶体热透镜不敏性的V形折叠腔参数。实验中通过LD端面泵浦Nd∶GdVO4,获得了稳定的TEM00模激光输出。将非线性晶体KTP置于基波的腰斑处,在19.7W的注入泵浦功率下获得了3.68W的531.5nm连续绿光激光输出,考虑到泵浦耦合用准直聚焦筒10%的耦合损耗,实现光-光转换率21%。经测量该激光腔输出功率及热稳定性在国内LD泵浦全固态连续绿光激光器研究领域处于领先水平。With a graphic analysis method, the parameters of three-mirror V-type folded cavity by diode laser endpumped are optimized, which make the cavity not sensitive to the variation of thermal lens effect of laser crystal, and obtain stable TEM00 mode output easily. When putting the nonlinear crystal KTP at the waist of fundamental wave, we got diode laser end pumped Nd：GdVO4/KTP cw green laser. At 19.7W end pump power,3.68W of continuous output green laser was obtained. Considering of the loss of coupling system, the optical-optical conversion efficiency of this all-solid-state laser was 21%.

关 键 词：固体激光器 绿光激光 传播圆变换理论 Nd∶GdVO4 热透镜效应 

分 类 号：TN248.1[电子电信—物理电子学]