基于自动紫外预电离的放电引发方式,研制出紧凑型闭环高重复频率非链式HF化学激光器。该激光器采用非对称电极结构,放电腔室的尺寸为12 mm×17 mm×460 mm。为了实现重复频率运行过程中放电区气体的快速置换,循环气体垂直于光轴流过放电区,气体流速约为9 m/s。当总气压为14 kPa时,在摩尔分数分别为92%和8%的SF₆和C₂H₆混合气体中,100 Hz重复频率脉冲HF激光器的输出功率为50 W。

A compact, closed-circle, high repetition frequency non-chain HF chemical laser is demonstrated based on the electric-discharge ignition mode via self-acting ultraviolet pre-ionization. A pair of asymmetric electrodes defines a 12 mm×17 mm×460 mm discharge volume. The circle gas flow is forced through this discharge volume to flush spent gas and replace it with fresh gas. The circulating gas flow in the vertical direction to the optical axis and the flow rate is 9 m/s. When the total gas pressure is 14 kPa, an average power of 50 W is realized with 100 Hz repetition rate in the gas mixture with mol-fractions of 92% SF6 and 8% C2H6.