可调谐全固态Nd:YVO_4/LBO倍频连续671nm环形激光器  

Tunable All-Solid-State Continuous Wave Intra-Cavity Frequency-Doubled Nd:YVO_4/LBO 671 nm Ring Laser

作　　者：孙桂侠[1] 刘涛[1] 钱金宁 苏新军[1] 张晓卫[1] 张志忠[1] 

机构地区：[1]核工业理化工程研究院激光技术研究所,天津300180

出　　处：《中国激光》2013年第6期92-96,共5页Chinese Journal of Lasers

基　　金：核工业集团总公司青年创新团队基金资助课题

摘　　要：描述了一种可调谐全固态Nd:YVO4/LBO倍频连续671nm环形激光器的结构参数和相关实验研究。激光器采用四镜环形腔结构,利用880nm激光二极管(LD)端面抽运YVO4-Nd:YVO4复合晶体和Ⅰ类相位匹配的LBO倍频方式,加入TGG旋光器和λ/2波片组成的光学单向器实现单向运转,通过对法布里-珀罗(F-P)标准具角度和腔镜压电晶体电压的调节实现了激光输出波长671nm附近的调频。在抽运功率为23W,吸收抽运功率为14.5W时,输出单频671nm连续红光最高功率为1.08W,光-光转换效率为7.4%;加标准具调谐时,获得了最高功率为738mW的可调谐红光输出。Abstract A tunable all-solid-state Nd：YVO4 ring laser, intra-cavity frequency doubled by a type- I matched LBO crystal with 671 nm laser output, is demonstrated in this paper. The laser resonator is designed with a four-mirror ring configuration. The YVO4-Nd：YVO4 composite crystal is end-pumped by a 880 nm laser diode （LD）. A Faraday optical diode consisted with TGG rotator and half-wave plate is placed inside the resonator for forcing the laser to operate unidirectionally. A solid Fabry-Perot etalon and a piezoelectric-ceramic are inserted into the cavity for tuning the wavelength. The single-frequency output power of 1.08 W at 671 nm is obtained under the pumping power of 23 W （the absorbed pumping power of 14.5 W）, the optical-optical conversion efficiency is about 7.4 %. With the etalon tuning, a maximal output power of 738 mW is obtained.

关 键 词：激光器 固态环形激光器 880 nm激光二极管抽运 YVO4-Nd YVO4 LBO倍频 频率调谐 

分 类 号：TN248.1[电子电信—物理电子学]