腔内OPO2μm脉冲激光器  

Intracavity OPO pulsed 2 μm laser

作　　者：朱海永[1] 张戈[1] 林燕凤[1] 黄呈辉[1] 魏勇[1] 黄凌雄[1] 

机构地区：[1]中国科学院光电材料化学与物理重点实验室福建物质结构研究所,福建福州350002

出　　处：《红外与激光工程》2008年第S3期54-57,共4页Infrared and Laser Engineering

基　　金：中国科学院福建物质结构研究所三期创新重大项目(SZD08001-4)

摘　　要：设计了基于KTP晶体的内腔式光参量振荡(OPO)2μm脉冲激光器。理论计算了KTP-OPO波长调谐特性及相位匹配参数,采用电光调QNd:YAG1.064μm激光泵浦的KTP晶体,在XZ主平面内,实现了Ⅱ类相位匹配,选用Φ4mm光阑限制光束,分别对单块KTP和为补偿走离效应采用两块向对放置的KTP晶体进行了实验,获得了最高25mJ的脉冲2.12μm激光输出,电光转化效率1.14‰。The pulsed 2 μm laser generated by intracavity optical parameter oscillator (OPO) based on KTP crystal was designed. The parameters of tuning curves and phase matching of KTP were theoretical analyzed. The KTP pumped by electro-optic Q-switched 1.064 μm laser, and the type Ⅱ phase matching was realized in the XZ plane. An aperture with diameter of 4 mm acted as limiting diaphragm. The experiment based on single KTP and double KTP for walk-off compensating were done. At last, the output energy of 25 mJ at th...

关 键 词：脉冲激光器 光参量振荡 2ΜM激光 KTP晶体 

分 类 号：TN248[电子电信—物理电子学]