OPERATING PARAMETER OPTIMIZATION OF OPTICALLY PUMPED CH3OH FAR-INFRARED LASER

By solving the density matrix equations of a quantum system, the outpu t power intensity of an optically pumped CH3OH FIR laser (CH3OH-OPFIRL ) was calculated by means of iteration method, and the spectral charac teristics were got. Base on the calculation, optimization of operating parameters including operating gas pressure, pumped power and output coupling coefficient of the CH3OH cavity laser were systematically stu died. Experimental, a series of FIR emissions of the CH2OH cavity lase r pumped by TEA-CO2 laser with 9P(16) line were measured. The experime ntal results were in good agreement with theoretical calculations.