LD抽运Er^(3+),Yb^(3+)共掺磷酸盐玻璃被动调Q激光器的理论分析和数值计算  

Theoretical analysis and numerical calculation of LD pumped passively Q-switched Er^(3+),Yb^(3+) co-doped phosphate glass lasers

作　　者：吴朝晖[1,2] 宋峰[1,2] 刘淑静[1,2] 蔡虹[1,2] 苏静[1,2] 田建国[1,2] 张光寅[1,2] 

机构地区：[1]南开大学光子学中心 [2]弱光非线性光子学材料先进技术及制备教育部重点实验室,天津300457

出　　处：《物理学报》2006年第9期4659-4664,共6页Acta Physica Sinica

基　　金：教育部新世纪优秀人才支持计划(批准号:560-9031-2);教育部优秀青年教师资助计划;天津市自然科学重点基金(批准号:05YFGPGX05100);教育部留学回国人员基金(批准号:b2a2023160)资助的课题.~~

摘　　要：研究了以Co^(2+)MgAl_2O_4晶体为饱和吸收体的LD抽运Er^(3+),Yb^(3+)共掺磷酸盐玻璃激光器.针对双掺离子之间的能量传递和Er^(3+)的多种跃迁过程,结合Co^(2+)MgAl_2O_4晶体中Co^(2+)离子的饱和吸收特性,给出了详尽的速率方程,在其基础上进行了数值分析,分析了输出镜透过率、激光介质长度、谐振腔长度、腔内往返损耗、饱和吸收体长度对激光阈值、峰值功率、单脉冲能量以及脉冲宽度的影响.An analytical model of passively Q-switched diode-pumped Er-Yb： glass laser with a Co^2＋ ：MgA12O4 plate as a saturable absorber has been developed. Considering energy transfer between Er^3＋ and Yb^3＋ , upconversion luminescence and the transition processes of the Co^2＋ in the Co^2＋ ：MgAl2O4 plate, rate equations of the passively Q-switched laser are presented and useful conclusions are drawn by numerical analysis in the paper. The model is very useful for optimizing these kind of lasers.

关 键 词：Co^1+:MgAl2O4晶体 被动调Q ER^3+ Yb^3+共掺磷酸盐玻璃 速率方程 

分 类 号：TN248[电子电信—物理电子学]