Abstract
A mathematical model, based on the Landau–Teller equations of six-temperature model for the CO 2–N 2–He–CO system, to describe the process of dynamic emission in tunable TEA CO 2 lasers is introduced. In this model, the Landau–Teller equations are rewritten with regard to fine longitudinal mode frequencies in the laser resonator. These revised equations can be utilized to estimate the laser output spectra as well as other laser output pulse parameters. Examples are given to show the modeling results of non-tunable, grating tuned or injection-locking TEA CO 2 lasers.
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