Er^(3+)2.79μm激光器转镜调Q系统特性分析  

Characterization of Er^(3+)2.79μm rotating mirror Q-switched laser

作　　者：魏昊波 郭强[1,2] 朱成君[1,2] 孙敦陆[1,2] 罗建乔[1,2] 易新[1,2] 

机构地区：[1]中国科学院安徽光学精密机械研究所,安徽合肥230031 [2]安徽省光子器件与材料重点实验室,安徽合肥230031

出　　处：《量子电子学报》2014年第5期563-568,共6页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金(612065173)资助项目

摘　　要：当选择YSGG、GGG、GSGG、YAG、YLF作为基质材料时,Er^3+的4~Ⅰ_11/2能级和4~Ⅰ13/2能级之间能够跃迁产生2.7~3μm的激光,该波段激光在医疗、军事等方面有着重要的应用价值。在790 nm,Er:YSGG作为工作物质可产生2.79μm激光。通过建立Er:YSGG能级跃迁的速率方程,理论分析了转镜调Q激光器的系统特性,并在此基础上进行了数值模拟。结果显示在给定激光工作物质各项参数的情况下,系统各个变量能够对转镜调Q激光器的性能产生影响。这些结果将为类似实验的设计和改进提供理论指导。2.7 - 3 μm laser, which has the important value of medical and military applications, are obtained from the transition ^4I 11/2 →^4I13/2 with rare earth Er3＋ as the active ions and YSGG, GGG, GSGG, YAG, YLF as the matrix material. Under 790 nm pump, the Er：YSGG as laser material can produce 2.79 μm stimulated emission. By building the rate equation of Er：YSGG energy level transition, the system characteristics of rotating mirror Q-switched laser were analyzed and numerical simulations were carried out. Result of the numerical simulations comprehensively shows the influence of system variables on the performance of rotating mirror Q-switched laser. These conclusion will provide theoretical guidance for the laser design and improvement of similar experiment.

关 键 词：激光技术 数值模拟 速率方程 转镜调Q 

分 类 号：TN248.1[电子电信—物理电子学]