高重频电光调QNd∶YAP红光激光器  

High Repetition Electro-optical Q-switched Nd:YAP Red Laser

作　　者：武志超[1] 凌铭[1] 王福荣[2] 梁柱[1] 

机构地区：[1]长春理工大学理学院,长春130022 [2]中日联谊医院,长春130031

出　　处：《光子学报》2010年第5期785-788,共4页Acta Photonica Sinica

摘　　要：研制了一台基于Nd∶YAP晶体线偏振激光输出特性而省略起偏器方式的电光调Q高重频Nd∶YAP红光激光器.通过对Nd∶YAP晶体的热透镜焦距的实验测量,优化设计了三镜折叠腔的各个参量,采用LN晶体电光调Q、KTP晶体Ⅱ类匹配腔内倍频,最终获得670nm红光输出.在重复频率1000Hz、抽运电流75A时,获得了峰值功率28.3kW、脉宽76ns的偏振红光输出,倍频效率为37.1%.The high repetition electro-optical Q-switched red laser is studied based on the polarized characteristic of Nd：YAP crystal.The parameters of the three-mirror folded are optimized by the thermal focus length of Nd：YAP crystal.The electro-optical Q-switched of LN crystal and typeⅡnoncritical phase-matching intracavity frequency-doubling of KTP crystal are adapted.Then the output peak power with 28.3 kW,about 76 ns of pulse duration at 670 nm and the frequency doubling efficiency of 37.1% are obtained in the condition of 75 A pump current and the electro-optical Q-switched repetition rate of 1 kHz.

关 键 词：激光技术 折叠腔 电光调Q 腔内倍频 

分 类 号：TN248.1[电子电信—物理电子学]