A numerical study of cw chemical DF laser performance with ramp nozzle array

Results are presented of a comparative numerical study of continuous-wave chemical DF laser with ramp and equivalent slot nozzle arrays. A special code is developed and is used to calculate the spacial distribution of chemical species accounting for the stimulated emission in the Fabry-Perot resonator. Influence of the design principles of these nozzles on lasing performance is investigated under different flow conditions in the active medium.