放电管作为电激励连续波HF/DF 激光器的F 原子发生器,在整个激光器系统中占有重要地位。目前流行采用的是高压直流电源加镇流电阻的放电模式,典型电参数为接近10 kV 高电压、百毫安量级的低电流。传统理论和实验结果均认为：放电管F 原子产率与放电管注入功率成正比,从而激光器输出功率也应与之成正比。引入不同阻值的镇流电阻,发现对于相同的注入功率,低电压、大电流模式比高电压、小电流模式更容易获得高的功率输出。

As the fluorine atom generator,the discharge tube plays an important role in discharge-driven CW HF/DF chemical laser system. The discharge scheme widely employed currently is the high voltage DC power which uses ballast resistor to restrict current and the typical electrical parameter scales are several kilovolt and hundred milliampere. The traditional theory and results of experiments indicate that yield rate of fluorine atom is proportional to the input power of discharge tube; accordingly the laser power is proportional to the input electric power. Using resistances of different levels,for the same input power the scheme of low voltage and large current is easier to gain high laser power output than that of high voltage and low current.