MULTICHANNEL ELECTRIC-DISCHARGE LASER WITH DIFFUSION COOLING OF GAS MIXTURE Russian patent published in 2011 - IPC H01S3/22 

FIELD: physics, optics.

SUBSTANCE: laser has a hermetic housing, an optical resonator, gas discharge tubes, a cooling system with liquid pumping inside the housing for cooling outer surfaces of the gas discharge tubes, a system for pumping the gas mixture inside the gas discharge tubes, a power supply and an electrode system for exciting glow discharge in the gas discharge tubes. The resonator has an optical bench on which a rear totally reflecting mirror is mounted at the beginning of the path of the laser radiation and a front exit mirror, as well as rotating mirrors of mirror prisms lying at the ends of the surface of the packet of gas discharge tubes, covering their ends. The gas discharge tubes are arranged in form of a packet inside the housing. Inside the packet, the tubes are arranged in two rows equidistant from each other. Transfer of radiation from tubes in one row to tubes in the other row is provided by two rotating mirrors of the mirror prism lying at an angle 90° relative each other. Transfer of radiation between tubes in a row is realised with four rotating mirrors of mirror prisms, the plane of the bisectrix angles of intersection of which are displaced from each other. Input of laser radiation is provided on all gas discharge tubes, starting with the tube lying opposite the rear totally reflecting mirror, and ending with the tube which is last on the path of the laser radiation and lying opposite the front exit mirror.

EFFECT: high radiation power.

2 dwg