Difference interferometer with improved cyclic non-linearity

摘要

An interferometer system comprises a plane mirror interferometers, a rotary mirror, a delay plates arrangement, which has a delay plate, which can be adjusted and then fixed, and a retro reflector. a light beam moves in a path, which the plane mirror interferometers, the rotary mirror, the delay plates arrangement and has the retro-reflector. The delay plates arrangement could be a plurality of bearings, a ring, which runs along on the bearings, the delay plate, which is fastened on the ring, and a piston, which presses the ring against the bearing, comprise. The delay plate could be fixed by means of adhesive, after an alignment was determined, which a low polarization leak in the system generates.