Nd:YVO_4自受激拉曼激光器调Q锁模特性  

Passively Q-switched mode locking in self-Raman Nd:YVO_4 laser

作　　者：彭继迎[1] 郑义[1] 

机构地区：[1]北京交通大学理学院激光研究所,北京100044

出　　处：《强激光与粒子束》2013年第5期1097-1099,共3页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(61108021;60978028);北京市自然科学基金项目(4102048)

摘　　要：利用Nd:YVO4激光晶体的自受激拉曼效应,结合Cr:YAG被动锁模技术和倍频技术,实现了结构紧凑的1176nm和588nm黄光锁模激光输出。激光器为LD端面泵浦,三镜折叠腔结构,并且采用了透过率为10%的输出镜。Nd:YVO4晶体长度为10mm,Nd3+离子掺杂质量分数为0.2%,Cr:YAG晶体的初始透过率为67%。10W激光泵浦时,1176nm激光平均输出功率为123mW,调Q包络宽度为6ns,调Q包络内的锁模脉冲重复频率高达1GHz。588.2nm黄光的平均输出功率为8mW。Based on the self-stimulated Raman scattering of Nd..YVO4 laser crystal, combined with Cr..YAG passive modelocking technology and frequency doubling technology, compact 1176 nm and 588 um yellow laser mode locking was realized. A folded laser cavity with three mirrors and an output coupler with 10 transmittance were designed in the laser diode end-pumped laser. The Nd3＋ concentration and length of the Nd..YVO4 crystal were 0.2 and 10 ram, respectively, and the initial transmission of Cr：YAG at 1064 nm was 67%. At 10 W incident pump power the average output power was 123 mW and the duration of Q-switched envelope was only 6.0 ns with the mode-locked pulse repetition rate of 1.0 GHz. The average output power of 588.2 nm yellow laser was about 8 mW. An effective method for achieving mode-locked yellow lasers was provided.

关 键 词：自受激拉曼激光器 调Q锁模 ND YVO4 Cr YAG 

分 类 号：TN248.1[电子电信—物理电子学]