A six-temperature kinetic model for a system is used to describe the dynamic processes of a mechanical Q-switched laser that is set up using a fast chopper. We put special emphasis on the effect of dynamical parameters on the laser intensity. It takes into account the effects of electrical excitation, energy transfer processes, thermal energy transport, as well as the dissociation of molecules and rotational relaxation of rotational levels. The results calculated are in satisfactory agreement with experimental data.
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