Theoretical computational investigation of an NH3 laser subjected to intensive pulsed pumping

A numerical simulation was made of the generation of radiation in an ammonia laser (containing an ammonia — nitrogen mixture) in the form of several lines. The laser was assumed to be pumped optically by strong pulses which can be provided by a CO₂ laser emitting as a result of the 9R(30) transition. The spectral pattern of the output radiation was calculated and it demonstrated that the lasing spectrum can be controlled by varying the pump intensity as well as the absorption coefficients of the various ammonia laser lines.