Effect of non-lasing vibro-rotational levels on the dynamics of the Q-switched CO{sub}2 laser

摘要

A fast chopper; is used to set up a mechanical Q-gwitched CO{sub}2 laser and pulse trains of repetitively Q-switched generation are recorded. We put special emphasis on the effect of the non-laser vibro-rotatiorial levels on describing the dynamic processes of this laser. The calculated pulse waveforms based on the vibro-rotational model are in good agreement with the experiment.