SOLID-STATE LASER WITH A ZIGZAG RAY PATH Russian patent published in 2006 - IPC H01S3/02 

FIELD: the invention refers to the field of laser technique and may be used at development and manufacturing of laser devices with increased amplification of radiation.

SUBSTANCE: the solid-state laser with a zigzag ray path has an active element, sources of exciting radiation, a non transmitting and a half-transmitting mirrors, heat-removing elements, optical absorbers. The active element is fulfilled in the shape of a rectangular parallelepiped , one its butt-end is covered with a reflecting coating and the other butt-end is covered with an antireflection coating. The heat-removing elements adjoin to the opposite lateral verges of the active element. The optical absorbers are installed near the other opposite lateral verges of the active element. The mirrors are installed under an angle to the butt-end of the active element with the antireflection coating. The material refraction index of the active element is larger than the material refraction index of the optical absorber and is larger than the material refraction index of the heat-removing element. The thermal conductivity of the material of the active element is larger than the thermal conductivity of the optical absorber.

EFFECT: increases amplification of radiation and the coefficient of efficiency.

2 cl, 2 dwg