Patent ID: 6104511
Filing Date: 2000-08-15
Classification: G03H,G06K,G11C

Abstract:
A holographic data storage and retrieval system comprising:a) a concave reflector;b) a convex reflector opposite said concave reflector;c) a storage medium;d) a reference beam R incident on said storage medium; ande) a set of signal beams and reconstructed signal beams {S(k)} incident on said storage medium, on said concave reflector, and on said convex reflector, wherein:a signal beam S(k) comprises an input portion S(k,i), and an inter-reflector portion S(k,1),a reconstructed signal beam comprises an inter-reflector portion S(k,2), and an output portion S(k,o),said input portion S(k,i) is incident on said concave reflector,said inter-reflector portion S(k,1) extends from said concave reflector and is incident on said storage medium,said inter-reflector portion S(k,2) extends from said storage medium and is incident on said concave reflector, andsaid output portion S(k,o) extends from said concave reflector.