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Monocular holographic data storage system architecture

A holographic storage and data technology, applied in information storage, recorded information storage, holographic process and other directions, can solve the problem of complex selection of multiplexing geometry

Inactive Publication Date: 2010-03-24
INPHASE TECHNOLOGIES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The choice of a reuse geometry is quite complex and has many considerations: size, cost, complexity, robustness to external environments such as temperature, etc.

Method used

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  • Monocular holographic data storage system architecture
  • Monocular holographic data storage system architecture
  • Monocular holographic data storage system architecture

Examples

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example I

[0203] Figure 30 One embodiment of a monocular optical holographic data device or system 3002 is schematically shown in a configuration for storing or recording (writing) holographic data. Apparatus or system 3002 includes a laser 3004 that provides a coherent beam 3006 that is directed by a mirror 3008 through a shutter 3010 to another mirror 3012 . Mirror 3012 directs beam 3006 to main beam expander assembly 3014, which includes pinhole 3016 and lens 3018 to spatially filter beam 3006, and lens assembly 3020 to expand and collimate filtered beam 3006 to a fixed diameter. Expanded filtered beam 3006 passes through half wave plate (HWP) 3022 and enters polarizing beam splitter (PBS) 3024 . PBS 3024 splits beam 3006 into reference beam 3026 having reference beam path 3028 , and data illumination beam 3030 having data beam path 3032 . Reference beam 3026 is directed by mirror 3034 through iris 3036 to another mirror 3038 . Mirror 3038 directs reference beam 3026 to another m...

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Abstract

A monocular holographic storage device or system to provide for compact recording and / or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and / or data recovery using a monocular holographic storage device or system. Further provided are articles comprising holographic storage media for recording or for reading recorded data using such devices or systems.

Description

[0001] Cross References to Related Applications [0002] This application references the following co-pending US patent applications. The first application is US Provisional Application No. 60 / 855,754, filed November 1, 2006, entitled "MONOCULAR HOLOGRAPHIC DATASTORAGE SYSTEM ARCHITECTURE." The second application is US Provisional Application No. 60 / 872,472, filed December 4, 2006, and entitled "PHASE CONJUGATE READOUT GEOMETRIES FORHOLOGRAPHIC DATA STORAGE." The entire disclosure and content of the aforementioned applications are hereby incorporated by reference. [0003] Statement of Joint Research Agreement [0004] Pursuant to 37 C.F.R. §1.71(g)(1), the following disclosure is hereby made pursuant to a joint research agreement as defined in 35 U.S.C. 103(c)(3) in effect on or before the date of this invention, and The invention described and claimed herein was made as a result of activities undertaken by or on behalf of Hitachi Co., Ltd. and InPhase Technologies, Inc. wit...

Claims

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Application Information

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IPC IPC(8): G03H1/04G11B7/24G11B7/24035G11B7/24044G11B7/24097
CPCG11B7/083G11B7/0065G03H2223/17G06F9/45533G11B7/00736G06F11/1004G03H1/265
Inventor K·R·柯蒂斯K·E·安德森F·施洛特奥井手达朗嶋田坚一岛野健宫本治一
Owner INPHASE TECHNOLOGIES INC
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