Optimization of the parameters of gas-discharge active medium and optical resonator of RF excited planar co-laser at room temperature

An output power of CO-lasers has been studied for operation at room temperature of the cooling running water from +7 to +16°C. A cw output power of 41 W for stable resonator and 21 W for unstable resonator has been achieved. The new configuration of hybrid waveguide-unstable optical resonator with the external additional mirror for the lasers is proposed and realized. We carried out experiments about the possibility of the optimization of the coupling coefficient of optical resonator with the aid of the external mirror, that is plane-parallel plate with different reflection coefficients.