Holographic video system with a pulse laser

Abstract

A holographic video system operated by a pulse laser is described. The use of a pulse laser as the light source allows the polygon mirror (or scanners) in the system to be eliminated. At the same time, a single long aperture acousto-optic modulator (AOM) is replaced by 6 small aperture AOMs linearly aligned and a still polygon mirror set is used. The effective aperture length of the 6-AOM-combination is 6 times that of an individual AOM. Since in this system the computer-generated-hologram (CGH) data is divided into 6 equal parts and loaded into the corresponding AOMs independently and synchronously, the loading time of CGH data to an AOM is reduced. This system can display 36.864 (in the horizontal direction) x 128 (in the vertical direction) holographic fringe data points in binary format and operate at a rate of 60 frames per second using a personal computer.