半导体激光端面抽运Nd:YVO_4自拉曼和频559nm激光  

Laser Diode End-Pumped Nd:YVO_4 Self-Raman Laser at 559 nm with Sum-Frequency Mixing

作　　者：段延敏[1] 朱海永[1] 凤正荣[1] 张耀举[1] 郑崇伟[1] 

机构地区：[1]温州大学物理与电子信息工程学院,浙江温州325035

出　　处：《中国激光》2013年第5期9-12,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金(10904143;61078023);浙江省自然科学基金(LY12F05003;LQ13F05004;Y6090220);浙江省新苗人才计划(2012R424060);温州市科技计划项目(G20110002)资助课题

摘　　要：报道了采用激光二极管端面抽运a轴切割的Nd:YVO4晶体自拉曼和频激光的实验研究。从谐振腔结构、晶体膜系以及和频晶体的选择方面对激光系统进行了设计,对连续运转和声光调Q下和频激光器的性能进行了研究。以KTP晶体为和频晶体,在12W的抽运功率下,获得了580mW的558.6nm连续黄绿激光输出,光-光转化效率为5%。在17.5W的抽运功率和30kHz的声光调Q重复频率下,获得了最高平均功率为1.71W、脉冲宽度为21ns的黄绿激光输出,光-光转化效率为9.8%。Sum-frequency mixing of a laser diode end-pumped a-cut Nd： YVO4 self-Raman laser is reported. Reasonable designing of cavity construction and crystal coating, as well as choosing of sum-frequency mixing crystal are considered. The laser system is optimized for continuous-wave mode and Q-switched mode operation. Continuous-wave yellow-green laser with output power of 580 mW and wavelength of 558.6 nm is achieved at a pump power of 12 W, and the corresponding optical-optical conversion efficiency is about 5 %. With pump power of 17.5 W and Q-switch repetition frequency of 30 kHz, yellow-green laser output power up to 1.71 W is achieved whose pulse width is 21 ns and optical-optical conversion efficiency is 9.8 %.

关 键 词：激光器 自拉曼 ND YVO4晶体 和频 端面抽运 声光调Q 

分 类 号：O436[机械工程—光学工程]