2 µm Ho: YLF active mirror laser

Abstract

The use of quasi-two-level laser medium in active mirror configuration seems to be the prospective approach to realisation of the high-power solid-state lasers. This approach was successfully applied to realisation of the diode pumped Yb:YAG laser. The low Stokes shift, thin active layer and longitudinal with respect to laser radiation thermal gradient provide the high specific generation power (3 kW/cm2) with high quality of radiation.