Optimization of the parameters of optically pumped submillimeter lasers

The results are reported of an experimental investigation of the dependences of the output power of submillimeter lasers, pumped optically by CO₂ laser radiation, on the pump power, vapor pressure of the active substance, resonator length, diameter of the coupling aperture, etc. The investigation was carried out under steady-state conditions using strong emission lines of the HCOOH, CH₃I, C₂H₂F₂, and CH₃OH molecules. Recommendations were formulated for some design parameters of submillimeter lasers.