Experimental study of small-scale direct current-discharge drived continuous-wave DF chemical laser
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摘要: 对一台小型电激励连续波DF化学激光器进行了实验研究，在光轴位于喷管阵列出口平面下游10 mm处和15 mm处分别进行了出光实验，得到188.4 W和205.8 W的DF激光输出，输出激光波长为3.6~4.1m，激光器的电效率分别为2.3%和2.5%。该小型电激励连续波DF化学激光器长时间(100 s)运行的功率稳定性峰谷值和均方根值分别为1.04%和0.49%，工作状态较为稳定，实验可重复性好，操作方便，是强光条件下镜片膜层吸收系数测量的适用红外激光光源。
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关键词:
- 激光器 /
- 电激励DF化学激光器 /
- 红外激光光源
Abstract: A small-scale direct current(DC)-discharge excited continuous-wave(CW) DF chemical laser is studied through experiments. The output power of the laser reached 188.4 W and 205.8 W, at about 10 mm and 15 mm downstream of the nozzle exit plane respectively, at the wavelength of 3.6~4.1 m. The electrical-to-laser power conversion efficiency was about 2.3% and 2.5% respectively. The experiments show good PV stability of about 1.04% and RMA stability of about 0.49% for long time(100 s) running, and good repeatability. This small-scale DC-discharge excited CW DF chemical laser performs well and operates simply, is an applicable infrared laser source for absorption measurement of the optical films under high power density.-
Key words:
- laser /
- DC-discharge excited DF chemical laser /
- infrared laser source
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