200 W重复频率中红外氟化氢化学激光器  

200 W Mid-Infrared HF Chemical Laser with Repetition Rate

作　　者：黄超[1] 黄珂[1] 易爱平[1] 马连英[1] 朱峰[1] 李高鹏[1] Huang Chao;Huang Ke;Yi Aiping;Ma Lianying;Zhu Feng;Li Gaopeng(State Key luiboratory of luiser Interaction with Matter, Northwest Institute of Nuclear Technology,Shaan , Xi'an 710024 ,China)

机构地区：[1]西北核技术研究所激光与物质相互作用国家重点实验室

出　　处：《中国激光》2019年第8期30-36,共7页Chinese Journal of Lasers

基　　金：国防科技创新特区项目、激光与物质相互作用国家重点实验室基金(SKLLIM1610)

摘　　要：为了获得高重复频率高功率中红外氟化氢(HF)激光输出,采用自动紫外预电离和对称Chang氏电极结构,制备了闭环的非链式重复频率HF激光器,并对其进行了详细介绍。实验研究了激光器的输出特性和重复频率运行特性,获得了激光能量随重复频率的变化规律。在增益区气体流速为16 m/s,工作电压为25 kV,总气体压强为8.5 kPa、物质的量分数分别为92%和8%的SF6和C2H6混合气体条件下,实现了重复频率为150 Hz、平均功率为200 W的HF激光输出。To obtain a mid-infrared HF laser with high repetition rate and high power, a closed-circle pulse-periodical non-chain HF chemical laser with self-acting ultraviolet pre-ionization and a pair of symmetrical Chang electrodes is developed. The design and performance of the developed laser are described in detail. An experimental study on the laser output and repetition rate operation characteristics demonstrates the effect of repetition rate on pulse energy. The average power for a HF laser with a repetition rate of 150 Hz is approximately 200 W when the gas flow speed is 16 m/s in the gain region, working voltage is 25 kV, and the total mole fraction pressure of 92% SF6 and 8% C2H6 gas mixture is 8.5 kPa.

关 键 词：激光器 中红外激光 化学激光 非链式HF激光 放电引发 紫外预电离 

分 类 号：TN249[电子电信—物理电子学]