Tm：YAG激光器在低温下的激光特性实验研究  

Experimental investigation on the output characteristics of Tm:YAG Laser at cryogenic temperature

作　　者：李建国[1,2] 张小富 崔前进 蔡京辉[2] 

机构地区：[1]中国科学院研究生院,北京100190 [2]中国科学院理化技术研究所空间功热转换技术重点实验室,北京100190 [3]大连淡宁实业发展有限公司,北京100015

出　　处：《激光杂志》2013年第5期3-4,共2页Laser Journal

摘　　要：研究了采用激光二极管(LD)侧面抽运Tm:YAG的激光器的低温输出特性。实验利用液氮杜瓦装置对Tm:YAG晶体进行冷却,最低温度达到了78.2K。采用平凹腔结构,采用中心波长785nm的激光二极管为抽运源,当LD注入功率为60W,晶体工作温度为80K时,获得了14.2W的连续激光输出,光)光转换效率为23.67%。实验测试了在相同泵浦功率,不同温度下Tm:YAG晶体的激光输出功率。Output characteristics of Tm ：YAG laser side -pumped by laser diode （LD） at cryogenic temperature was investigated .Tm ：YAG crystal was cooled with a liquid nitrogen dewar ,and the lowest temperature was 78 .2K .In the experiments ,laser diodes with the central wavelength of 785nm was used to pump the Tm ：YAG laser .The highest continuous -wave（CW） power of 14 .2 W was achieved with the laser crystal temperature at 80K in a plane -concave cavity under a pump power of 60W ,and the total optical -optical conversion efficiency was 23 .67% .Output power of Tm ：YAG laser crystal at different crystal temperature in the same pump power was measured .

关 键 词：激光技术 TM YAG激光器 激光二极管抽运 低温 

分 类 号：TN248.1[电子电信—物理电子学]