Abstract

Plasma injection method has been used to stabilize the main electric discharge in the atmospheric high power cw CO<SUB>2</SUB> lasers. In this work, an analytical perturbative method is introduced for solving Boltzmann equation for a general plasma. This method is applied to a specific plasma injection CO<SUB>2</SUB>-N<SUB>2</SUB>-He laser. Small signal gain and output power of the laser are calculated in the steady state as a function of gas mixture and pressure. Dependence of small signal gain and output power on the main discharge current also were considered.

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