新型电光调Q腔内倍频绿光激光器  

A New Type of Q-switched and Frequency doubling Green Laser

作　　者：陈飞[1] 霍玉晶[1] 何淑芳[1] 冯立春[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《中国工程科学》2000年第4期39-42,共4页Strategic Study of CAE

基　　金：国家"八六三"计划资助项目

摘　　要：本文报道了一种新型的LD泵浦Nd∶YVO4 -KTP电光调Q绿光激光器 ,用单块KTP晶体同时作为电光调Q开关和Ⅱ类相位匹配的倍频晶体 ,减少了腔内损耗 ,提高了效率 ,得到了脉宽为 12ns的绿光脉冲序列。激光器采用纵向同轴泵浦方式、独特的整体控温技术和小焦距非球面聚焦透镜 ,并把全部元件固化为一个整体 ,进一步提高了器件的效率。A new type of LD pumped Nd∶YVO 4-KTP Q switched green laser is demonstrated.By using the KTP crystal as both an electro optic Q switcher and a frequency doubling crystal in type Ⅱ phase matching for generating pulsed green beams,low loss and high efficiency characteristics were realized.Special temperature control technique and aspherical lens with smaller focus length were used in the laser,and all elements were fixed into a whole with epoxy.These measures improved the laser efficiency,output power and laser beam direction stability.Green power with up to 762 W peak output and 12 ns pulse width was obtained. [

关 键 词：KTP 绿光激光器 电光调Q开关 倍频晶体 

分 类 号：TN248.34[电子电信—物理电子学]