摘要
采用Nd:YAG调Q激光器输出的1.06μm光脉冲抽运Cr4+:Mg2SiO4晶体,实现Cr4+:Mg2SiO4激光器的增益开关运转。从理论和实验上分析了抽运光采用不同焦距的透镜聚焦和Cr4+:Mg2SiO4激光器采用不同腔长时,抽运光和振荡激光的模式匹配,以及模式匹配与激光器光-光转换效率之间的关系。在最佳的实验条件下,得到中心波长约为1.22μm,能量和脉宽分别为10mJ和8.2ns的激光脉冲,其光-光转换效率达到20%。
The gain-switched operation of Cr^4＋：Mg2SiO4 laser pumped by the Q-switched Nd：YAG laser at 1.06 μm is realized. The mode-match of pumping laser and oscillation laser, and the relation between the transfer efficiency and the mode-match is analyzed theoretically and experimentally,as the pumping laser is focused by different lens and the different cavity length is adopted by Cr^4＋：Mg2SiO4 laser. The laser pulse at 1.22 μm center wavelength is obtained with the output energy of 10 mJ and pulse duration of 8.2 ns.The transfer efficiency is 20%.
出处
《红外与激光工程》
EI
CSCD
北大核心
2007年第2期182-185,共4页
Infrared and Laser Engineering
基金
福建省自然科学基金资助项目(A0610023)
国务院侨办科研基金资助项目(05QZR11)
关键词
掺铬镁橄榄石晶体
透镜
腔长
模式匹配
转换效率
Cr^4＋：Mg2SiO4 crystal
Lens
Cavity length
Mode-matching
Transfer efficiency
