Abstract

A computer model was developed to evaluate the thermophysical characteristics of an electron-beam sustained electric discharge excited continuously flowing CO/sub 2/ laser. The model includes a detailed treatment of the cavity flow field, finite rate excitation-relaxation kinetics, electron-beam sustained discharge, and stable or unstable resonator optical cavity. The flow model is based on a finite-difference solution of boundary layer type conservation equations, treating either laminar or turbulent flows. Wave propagation is treated with a two-dimensional Fresnel Integral allowing the wave(s) to interact with the flowing gain medium. The result is a consistent, fully coupled theoretical model for continuous wave electron-beam sustained electric discharge lasers.

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