District cooling method for thin disk-type laser media

thin dis A district cooling approach based on the thermoelectric devices array for high-power large-aperture Nd:YAG disk-type solid state laser media is presented. The cooling efficiency distribution of the thermoelectric devices is controlled by their working voltage, consequently, district temperature control of disk media is realized and a uniform lateral temperature distribution is obtained. And this method reduces the thermal effects and offeres a new idea of thermal management in disk lasers. The experiments demonstrate that the heating and cooling can be controlled to obtain a desired temperature distribution in thin gain media.