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分析了TEA CO2激光器和差分吸收雷达的工作原理,研制了一种新型双通道放电激励折叠腔TEA CO2激光器。详细分析了折叠腔TEA CO2激光器的结构及其设计特点。对影响气体快放电过程的各种因素,如储能电容与峰值电容的比值、工作气压、充放电电感及输入电压的范围等进行了实验研究,确定了充放电谐振回路的最佳参数,实现了双通道的稳定辉光放电。对激光器输出能量与激励电压、混合气体工作气压等参数的关系进行了实验研究,得到最大输出能量约为722mJ。
The working principle of TEA CO2 laser and differential absorption radar is analyzed. A new TEA CO2 laser with double-channel discharge excited folding cavity is developed. The structure and design features of the TEA CO2 laser in the folded cavity are analyzed in detail. The factors affecting the rapid discharge process of gas, such as the ratio of storage capacitor to peak capacitor, operating pressure, charge-discharge inductance and the range of input voltage, were studied experimentally to determine the optimal parameters of the charge-discharge resonant circuit and to achieve Dual-channel stable glow discharge. The relationship between laser output energy and excitation voltage, working gas pressure and other parameters were experimentally studied, and the maximum output energy was about 722 mJ.