LD侧面泵浦Tm:YAG电光调Q激光的实验研究  

Experimental study of LD side-pumped Tm:YAG electro-optically Q-switched laser

作　　者：钟玉龙 程庭清[1] ZHONG Yulong;CHENG Tingqing(Institute of Health and Medical Technology,Hefei Institute of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院健康与医学技术研究所,安徽合肥230031 [2]中国科学技术大学,安徽合肥230026

出　　处：《量子电子学报》2022年第5期736-741,共6页Chinese Journal of Quantum Electronics

基　　金：国家重点研发计划,2018YFB0407204。

摘　　要：介绍了一种激光二极管(LD)阵列侧面泵浦电光调Q的高峰值功率、窄脉宽的Tm:YAG激光器。使用LGS晶体作为电光Q开关,研究了白宝石堆片和格兰棱镜分别作为起偏器时激光输出的特性。研究表明:使用白宝石堆片作为起偏器时,随着泵浦能量的增加会有尾脉冲出现;而使用格兰棱镜作为起偏器时,则无尾脉冲。使用格兰棱镜作为起偏器时,该激光器输出激光中心波长为2.02μm,在重复频率为10 Hz时,可获得最大单脉冲输出能量为60 m J、脉冲宽度为65.6 ns、峰值功率为0.91 MW、斜效率为5.41%的激光输出。An electro-optic Q-switched Tm:YAG laser with high peak power and narrow pulse width side-pumped by laser diode(LD) array is introduced. Using LGS crystal as electro-optical Q-switch, the characteristics of the laser output are investigated when the white Sapphire and Glan prism are used as a polarizer respectively. The results show that when using Sapphire stack as a polarizer, there will be a tail pulse with the increase of pump energy, however, when using a Glan prism as a polarizer, there is no tail pulse. Using a Glan prism as the polarizer, the central wavelength of the laser output is 2.02 μm, and a laser output with a maximum single pulse output energy of 60 m J, a pulse width of 65.6 ns, a peak power of 0.91 MW and a slope efficiency of 5.41% can be obtained at a repetition frequency of 10 Hz.

关 键 词：激光技术 Tm:YAG激光器 电光调Q LD侧面泵浦 

分 类 号：TN248[电子电信—物理电子学]