Enclosure with a diffusely reflecting layer in a pumping system for a solid-state laser

The results are given of an experimental investigation of diffuse reflectors. It is shown that such reflectors are highly efficient in the case of neodymium-glass lasers. Comparative data are given on the degree of uniformity of the pumping of active elements in specular and diffuse reflectors. The efficiencies of these reflectors are compared. In a system with a diffuse reflector and an immersion layer around the active element the degree of uniformity of the pumping is 0.93 and the efficiency of the reflector is 0.6.