Research of the shaping of the radiation spectrum of dye laser in a resonator with the spectral selector

The radiation spectrum formation for the flash-lamp-pumped laser on dye having resonator with the spectral selector is investigated. The rate equations for Rhodamine 6G known parameters are solved. Evolution of the radiation line was investigated for pulses of microsecond duration, which are typical for lasers of such a kind. It is shown that energy spectral density and radiation line width change significantly when the selector based on Fabry-Perot interferometer has unclarified surfaces. Results of research are shown for main factors influencing the generation spectrum character. Requirements to selectors are determined to receive the given spectral-power characteristics for radiation of pulse lasers on dyes.