上转换对Er^(3+),Yb^(3+)共掺磷酸盐玻璃激光器输出的影响  

Influence of upconversion effect on Er^(3+),Yb^(3+) co-doped phosphate glass lasers

作　　者：吴朝辉[1] 宋峰[1] 刘淑静[1] 覃斌[1] 苏静[1] 田建国[1] 张光寅[1] 

机构地区：[1]南开大学光子学中心,天津300071

出　　处：《物理学报》2005年第12期5637-5641,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60377033;60025512);教育部新世纪优秀人才支持计划;教育部留学回国人员科研启动基金;教育部优秀青年教师资助计划资助的课题.~~

摘　　要：研究了激光二极管抽运的Er3+,Yb3+共掺磷酸盐玻璃激光器中共协上转换(cooperative upconversion)和累积能量转移(cumulative energytransfer)对激光输出的影响.通过对速率方程的数值模拟,定量计算并分析了共协上转换和累积能量转移对激光输出的影响,发现共协上转换对阈值抽运功率的影响可达到22%之多,实验结果和理论曲线相当符合.这有助于对Er3+,Yb3+共掺磷酸盐玻璃激光器进行优化.An analytical model of cw longitudinally diode-pumped Er^3＋, Yb^3＋ co-doped phosphate glass lasers that includes the influence of cooperative upconversion and cumulative energy transfer effects has been developed. The results of general output modeling were applied to a laser with Gaussian beams, and numerical calculation has been made to study the influence of cooperative upconversion and cumulative energy transfer effects, where the dependence of laser output on the influence of cooperative upconversion and cumulative energy transfer effects was investigated in particular. Especially, we find that the influence of cooperative upconversion on the threshold can be up to 22%. The model is in good agreement with measurements of the laser in a plane-plane cavity. Further numerical analysis will be developed. Our results are useful for optimizing the parameters of this kind of lasers.

关 键 词：共协上转换 累积能量转移 ER^3+ Yb^3+共掺磷酸盐玻璃激光器 数值分析 

分 类 号：TN248[电子电信—物理电子学]