Abstract
A simple four-level kinetics model is combined with a cavity intensity model to predict the output pulse characteristics of pulsed electric discharge CO2 lasers for pressures ranging from 0.1 to 10 atm. Both free-running (gain-switched) and Q-switched cases are studied. Particular emphasis is placed on peak intensity and energy content of the initial spike as a function of pumping rate, gain at time of Q swithcing, mixture, and pressure.
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