Features of emission from a submillimeter laser under intense optical pumping

The emission of a submillimeter laser pumped by a high-power (up to ~ 1 kW) CO₂ laser is studied. It is found that lasing of CH₂F₂ molecules saturates at the pump power ~350 W. A delay of submillimeter lasing depending on the gas pressure in the active medium and the pump intensity is observed. The possibility of a rapid tuning (in about 1 ms) of the submillimeter laser emission by scanning the emission from the CO₂ laser is demonstrated experimentally.