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一个连续波10.6微米的CO_2激光器被用来测量CO_2-He-N_2混合气压高达1个大气压的横向激励电容放电中作为时间函数之小信号增益。测量了放大器增益和平均增益系数。研究了不同的混合气,并观察了N_2和He对于增益的一般作用,随着气压降低增益一直增加,在2.45米的放大器长度上得到大于6的放大系数,随着加到放电电容器上电压的增加,增益也增加。放电所致的激光束的偏离以及气体中声波的产生,均归因于气体的发热。
A continuous wave 10.6 micron CO 2 laser was used to measure the small signal gain as a function of time in a lateral excitation capacitor discharge at a CO 2 -He-N 2 mixed gas pressure of up to 1 atm. Amplifier gain and average gain factor were measured. Different mixtures were investigated and the general effect of N 2 and He on the gain was observed. As the barometric gain decreased, gain was increased over an amplifier length of 2.45 meters with an amplification factor greater than 6, and as the voltage applied to the discharge capacitor Increase, gain also increased. The deviation of the laser beam due to the discharge and the generation of the acoustic wave in the gas are attributed to the heat of the gas.