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用具有扁平放电截面的等离子体管设计一种新颖的 CO2 激光器 ,并用纵向辉光放电和横向无声放电同时激励。阐述了这种激光器的设计原理 ,理论上讨论了激光管内电子浓度的横向分布 ,实验研究了它的工作特性 ,并与仅用辉光放电激励的情况进行比较。实验表明 ,由于横向无声放电的作用使这种激光器的激光功率、工作气压和工作气体中氮的比例有明显的提高 ,激光效率也有所提高 ,而且放电电流能兼顾最大激光输出功率和最佳效率。
A novel CO2 laser was designed using a plasma tube with a flat discharge cross-section and simultaneously excited with a longitudinal glow discharge and a lateral silent discharge. The design principle of this laser is expounded. The transverse distribution of the electron concentration in the laser tube is theoretically discussed. Its working characteristics are experimentally studied and compared with the case of using only glow discharge excitation. Experiments show that the laser power, working pressure and the ratio of nitrogen in the working gas are significantly increased due to the lateral silent discharge, and the laser efficiency is also improved, and the discharge current can take into account the maximum laser output power and the best efficiency .