LASER RADIATION FORMING OPTICAL SYSTEM FOR GAS LASER Russian patent published in 2014 - IPC H01S3/08 

FIELD: physics, optics.

SUBSTANCE: invention relates to laser engineering and can be used in gas laser structures. The laser radiation forming optical system a gas laser based on an unstable telescopic optical cavity comprises a cavity end mirror and a cavity exit mirror enclosed in a sealed gas volume and allows exit of laser radiation through the exit mirror. The cavity exit mirror is made on the working surface of a lens meniscus at the centre, lying on the optical axis of the system. The lens meniscus with the exit mirror, which bounds the active gas volume, operates as the exit window of the optical system.

EFFECT: simple design of the optical system, which reduces loss of the energy of the laser radiation by reducing the number of optical elements in the system, and providing efficient control of spatial characteristics of the laser radiation.

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