Patent ID: 9306367
Filing Date: 2016-04-05
CPC Classification: H01S

Claim Text:
1. A device for amplifying a laser beam, comprising: an amplifier chamber with a laser-active material therein; a transmitting optical member delimiting the amplifier chamber and being arranged at a tilt angle, α, with respect to a plane oriented perpendicularly with respect to an optical axis of the laser beam incident on the transmitting optical member; a detection unit arranged such that it detects a laser beam back reflected from the transmitting optical member; and a deflection mirror, wherein the deflection mirror and the transmitting optical member are arranged such that, during operation of the device, the deflection mirror deflects the back reflected laser beam and the laser beam, the laser beam and the deflected laser beam lie within a deflection plane, and the back reflected laser beam impinges on the deflection mirror outside the deflection plane.