1645nm陶瓷激光共振泵浦Tm:CaYAlO_4激光器  

1645 nm ceramic laser resonantly pumped Tm∶CaYAlO_4 laser

作　　者：侯晓君[1] 肖薇[1] 李永锟 唐海艳[1] 沈德元[1] 

机构地区：[1]江苏师范大学物理与电子工程学院,江苏徐州221116

出　　处：《激光与红外》2016年第1期44-47,共4页Laser & Infrared

基　　金：国家自然科学基金项目(No.61177045;No.11274144);大学生创新创业训练计划项目资助

摘　　要：用Er∶YAG陶瓷激光作为泵浦源研究了Tm∶CYA晶体激光输出特性。对Tm∶CYA采用共振泵浦的方式,分别研究了4.0 at.%和6.0 at.%两种掺Tm^(3+)离子浓度的Tm∶CYA样品在5%和10%透过率输出耦合镜下的激光输出特性,并对激光光谱进行了比较分析。采用沿c轴切割的4.0 at.%掺Tm^(3+)离子浓度的Tm∶CYA作为激光增益介质,在输出镜透过率为5%的情况下,当泵浦功率为2.46 W时,获得了最高功率为1.20 W的近衍射极限的TEM_(00)的激光输出,光束质量因子M^2约为1.1,对应的斜率效率达56.3%。The output characteristics of a novel solid-state laser with Er ： YAG ceramic laser as the pump source and Tm ： CYA as the laser crystal is studied. Efficient lasing of resonantly pumped Tm ： CYA solid-state laser is demonstrated. Output characteristics under 4. 0 at. % and 6.0 at. % Tm3 ＋ -doping concentrations and different transmittances of output coupler are experimentally studied. The 4. 0 at. % Tm3 ＋ -doping c-cut Tm ： CYA single crystal is as gain medium. When the transmittance of an output coupler is 5% ,the maximum output power in a diffraction-limited TEM0o beam（with M2 of about 1.1 ） is 1.20 W at pump power of 2.46 W,and the corresponding slope efficiency is 56. 3%.

关 键 词：Tm∶CaYAlO4 陶瓷激光 共振泵浦 

分 类 号：TN248[电子电信—物理电子学]