Method and arrangement of apparatus for frequency shifting a monochromatic narrow bandwidth light beam

摘要

Arrangement for frequency shifting a monochromatic narrow-bandwidth light beam, in particular a laser beam, based upon the Doppler effect due to reflection from moving mirrors. Two stationary mirrors are provided between which the beam is reflected back and forth via two moving mirrors. The moving mirrors are staggered by an angle of 180 DEG , arranged symmetrically on a rotating support and rotated about a common axis of rotation.