Discharge-pumped joule-level HF laser with ultraviolet spark pre-ionization
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摘要: 研制了一台采用紫外火花预电离和横向放电结构的非链式电激励脉冲HF激光装置,采用氢闸流管结合一级磁脉冲压缩开关的高功率电激励系统。实验研究了激光工作介质SF6,H2不同压强比和总工作气压对激光输出能量的影响,得出了最佳气体组分,确定了最佳工作气压。总气压在8.8 kPa,气体组分H2与SF6气压比为1:9时,获得最佳的激光输出,输出能量达到1.3 J,激光器的光电转换效率达到2.4%。:Abstract: The design and performance of a non-chain transverse excited HF laser with ultraviolet spark is described. It has high energy implantation and great energy output, and takes a high power excitation system with thyratron combined magnetic pulse compression switch. The laser pulse energy was studied in different gas pressure and fractions of the media SF6 and H2. The maximal output energy 1.3 J was achieved under the condition of 88 kPa gas pressure with 10% H2 and 90% SF6. Laser electro-optical conversion efficiency 5.3% were obtained.
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