Discharge pumped repetition-rate non-chain HF laser

Design and performance of a closed cycle, repetitive frequency non-chain HF laser is described. Homogeneous glow discharge is formed with UV pre-ionization and transverse discharge structure. Optimal output parameters of single pulse operation are given by investigation of discharge characteristics in SF6 /C2H6 gas mixture and output characteristics of laser pulse. Operating stability of laser device in repetition-rate mode is researched with different gas flowing velocities, charging voltage and total pressure of gas mixture. It is shown that maximal output energy of laser pulse 0.6 J and peak power 3 MW are obtained. Total efficiency of laser device is about 2.4%. When gas mixture circulating with 3.5 m/s flowing velocity, maximal running frequency of 50 Hz is obtained and operating stab