UNSTABLE RESONATOR Russian patent published in 2015 - IPC H01S3/81 

FIELD: physics.

SUBSTANCE: invention relates to quantum electronics and specifically to stimulated emission devices and is intended for designing optical quantum generators with a compact form of output radiation, having a volumetric active medium. The device comprises confocal conical primary concave mirror (1) and secondary convex mirror (2), as well as a trihedral corner reflector (3) with mutually perpendicular mirror faces. The plane of the corner reflector (3) lies behind the rear side of the secondary convex mirror (2) or touches said side, and the vertex lies on the axis of symmetry of the resonator.

EFFECT: high uniformity of intensity distribution in the beam section of output radiation owing to axially symmetrical phase distribution.

3 cl, 5 dwg