VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DER LASERSTRAHLENERGIE

摘要

A process and assembly regulates laser power. It uses two Brewster elements aligned along a single axis parallel to the laser beam, and which rotate about the axis. The first Brewster element rotates in a first direction and the second Brewster element turns in the opposite direction. The Brewster elements are both rotated by plus or minus 45 degrees , thereby shifting the power from the maximum to the minimum level.