Model calculations for a CO2 mixing laser with screen nozzle

A semi-empirical, one dimensional model for a gasdynamic CO2 laser with screen mixing nozzle is presented. The calculation of profiles of small signal gain, available energy, and bounds for the laser power along the flow direction was based on the assumption of a finite mixing length. The calculated distributions were compared with experimental results and allow for their physical interpretation. Proposals for improving an existing laser are presented. Upper limits to the power of this particular device and for screen nozzle mixing lasers in general were determined based upon physically and technically realistic initial conditions.