Patent ID: 8130430
Filing Date: 2012-03-06
Classification: G03H,G06F,G11B

Abstract:
1. A holographic storage device or system comprising: an objective lens located on one side of a holographic storage medium and located so that a reconstruction beam passes through the objective lens prior to entering the holographic storage medium; a reflective device located on an opposite side of the holographic storage medium; a phase conjugate optical system; and a reconstruction beam source for generating the reconstruction beam, wherein the reconstruction beam is directed along a reconstruction beam path that passes through the objective lens, through the holographic storage medium, and is directed by the reflective device back through the holographic storage medium to the phase conjugate optical system, wherein the phase conjugate optical system generates a phase conjugate beam from the reconstruction beam, and wherein the phase conjugate beam is directed through the holographic storage medium to form a recovered beam from one or more data pages stored in the holographic storage medium.