Fast-flow pulsed CO2 closed-cycle laser with a carbon dioxide regeneration unit

Stabilization of the output energy and composition of the mixture in a pulse-periodic CO₂ laser was achieved by regenerating carbon dioxide with a palladium catalyst. Measurements of the small-signal gain of mixtures with different compositions demonstrated that the reduction in the gain on dissociation of CO₂ was due to a reduction in the CO₂ concentration and an increase in the concentrations of CO and O₂.