CO_2气动激光器的研制

Experimental study on a CO_2 gasdynamic laser

本文描述了列阵喷管喉道高度为0.8毫米,马赫数为4.3的CO_2气动激光器的实验装置和测量结果。观测了小讯号增益随CO_2和H_2O浓度、滞止温度和喷管出口下游距离的变化规律。当燃烧气体比在CO_2=13％,H_2O-1％和N_2=86％左右时,平均小讯号增益为每米0.58,单孔耦合的单程稳定腔输出功率为1400瓦。

An experimental device of CO2 gasdynamic laser having an array of nozzles with a throat height of 0.8mm and a Math number of 4.3 is described and its test results presented.Small signal gains as functions of CO2 and H2O concentrations, Stagnation temperature, and the distance away from the nozzle exit planes were CO2=13%, H2O=1%, and N2=86%, the average small signal gain was 0.58cm^-1, and the output power was 1.4 kw for a single-path stable resonator coupled with a single hole.