公开(公告)号：JPH11242424A

公开(公告)日：1999-09-07

申请号：JP32117298

申请日：1998-11-12

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CAMPBELL SCOTT PATRICK ,  CURTIS KEVIN RICHARD ,  WILSON WILLIAM L

IPC: G02B5/32 ,  G03H1/22 ,  G03H1/26

Abstract: PROBLEM TO BE SOLVED: To provide a device and method which generates a light beam in a holographic storage system like, specially, a phase correlation multiplexing(PCM) holographic storage system. SOLUTION: The system consists of a generation source 264 which generates at least one HOE reference beam, a generation source which generates at least one HMC object beam, and at least one data storage device; and a holographic optical element(HOE) restructures an HMC reference beam and projects the HMC reference beam from there in response to the irradiation of the holographic optical element with the HOE reference beam and at least one hologram of the data-coded HMC object beam of the HMC reference beam is stored in the data storage device by phase correlation multiplexing technology in response to interference with the data-coded HMC object beam in a location in the data storage device.