低温CTH:YAG激光器的实验研究  

Experimental study on low temperature CTH:YAG laser

作　　者：李明 王建卫 LIMing;WANG Jian-wei(BIMT,Beijing 101111,China;Accu-tech Co.,Ltd.,Beijing 100015,China)

机构地区：[1]北京市医疗器械检验所,北京101111 [2]爱科凯能科技(北京)股份有限公司,北京1000150

出　　处：《激光与红外》2018年第11期1372-1375,共4页Laser & Infrared

摘　　要：为提升钬激光输出特性,分析了CTH:YAG激光器能级跃迁全程,根据CTH:YAG激光器准三能级的特点,采用BaSO_4漫反射聚光腔,测试了不同频率,不同冷却温度、不同输出镜反射率和不同CTH:YAG晶体面型对钬激光输出能量的影响。实验结果表明,在水温为10℃,输出镜反射率R=85%,采用双凹面型晶体时,在注入131J时,8Hz下的激光能量输出达到了5.5J。In order to improve CTH ： YAG laser output energy, the energy level transition of it is analyzed. According to CTH ： YAG laser characteristics of quasi-three-level operation, using BaSO4 pump chamber, the effects of different frequencies ,cooling temperatures ,output coupling mirror reflectance and different CTH ： YAG crystal profile on the output energy of laser were tested. When the water temperature is 10 ℃, the output coupling mirror reflectance is 85%, the crystal surface type is concave-concave, the power supply injected was 131 J, the experimental results show that the laser energy output can reach 5.5J at 8Hz.

关 键 词：CTH:YAG激光器 BaSO4聚光腔 双凹面型晶体 

分 类 号：TN242[电子电信—物理电子学]