Background correction of detected digital data page for holographic storage

Abstract

A real-time background correction technique is reported for digital data page holographic storage. Two inverted binary data pages are recorded at the same location in recording media with two inverted random phase coded reference beams using a rotating half-wave plate. Adding the two detected inverted data pages from same media location creates background image with noise at that media location. The background image is used to successfully perform the background correction to reduce the noise of detected digital data pages. © 2010 Copyright SPIE - The International Society for Optical Engineering.