350 mJ LD侧面抽运Nd:YAG无水冷调Q激光器  

350 mJ LD Side-Pumped Q-Switched Nd:YAG Laser Without Water Cooling

作　　者：董剑[1] 刘学胜[1] 司汉英[2] 彭超[1] 刘友强[1] 曹明真 王智勇[1] Dong Jian Liu Xuesheng Si Hanying Peng Chao Liu Youqiang Cao Mingzhen Wang Zhiyong(Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China The 53rd Research Institute of China Electronic Technology Group Corporation, Jinzhou, Liaoning 121000, China)

机构地区：[1]北京工业大学激光工程研究院,北京100124 [2]中国电子科技集团第五十三研究所,辽宁锦州121000

出　　处：《中国激光》2016年第11期33-39,共7页Chinese Journal of Lasers

基　　金：北京市教委面上项目(KM201310005019)

摘　　要：研制了一台无水冷激光二极管(LD)侧面抽运高能量、高光束质量全固态Nd:YAG调Q激光器。激光器采用半导体制冷器(TEC)进行整体冷却,有利于激光器的小型化、便携化。实验使用的Nd:YAG晶体棒尺寸为φ7mm×100mm,掺Nd的原子数分数为1.1%,LD抽运的最大峰值功率为15kW。在10 Hz重复频率下获得最大脉冲能量为350mJ、脉冲宽度为9.7ns、光-电转换效率为6.7%、能量稳定度小于5%的1064nm激光输出,水平和垂直方向的光束质量M2分别为7.7和12.3。A LD side-pumped, high-energy, high-beam-quality, Q-switched all-solid-state Nd： YAG laser without water cooling is developed. The laser is integrally cooled by using a thermoelectric cooler （TEC）, which is conducive to the miniaturization and portability of laser. The dimension of Nd： YAG crystal rod used in experiment is φ7 mm× 100 mm and the Nd atom number fraction is 1.1%. The maximum peak power of LD pumping is 15 kW. The laser output at 1064 nm with the maximum pulse energy of 350 mJ, pulse width of 9.7 ns, optical- electrical conversion efficiency of 6.7% and energy stability less than 5 % is obtained at 10 Hz repeat frequency. The beam qualities M2 of horizontal and vertical directions are 7.7 and 12.3, respectively.

关 键 词：激光器 ND:YAG激光器 高能量 激光二极管侧面抽运 

分 类 号：TN248.1[电子电信—物理电子学]