Title:
HOLOGRAPHIC MEMORY REPRODUCTION DEVICE AND HOLOGRAPHIC MEMORY REPRODUCTION METHOD, DEMODULATION DEVICE AND DEMODULATION METHOD, AND OBSERVATION DEVICE AND OBSERVATION METHOD
Document Type and Number:
WIPO Patent Application WO/2012/053198
Kind Code:
A1
Abstract:
The present invention relates to a reproduction device of a holographic memory capable of precisely reproducing multi-value phase information without being influenced by noise. This holographic memory reproduction device comprises: a hologram diffraction ray generation unit which irradiates a first reference ray to the holographic memory and generates a diffraction ray of the first hologram; a hologram generation unit which changes the phase of a second reference ray which may interfere with the diffraction ray of the first hologram and generates a second hologram from the diffraction ray of the first hologram and the second reference ray to which the phase has been changed; a detection unit which detects the intensity distribution of the second hologram; and a processing unit which demodulates the phase modulation signal or the space quadrature amplitude modulation signal on the basis of the intensity distribution.
Inventors:
OKAMOTO ATSUSHI
KUNORI KEISUKE
TAKABAYASHI MASANORI
KUNORI KEISUKE
TAKABAYASHI MASANORI
Application Number:
PCT/JP2011/005841
Publication Date:
April 26, 2012
Filing Date:
October 19, 2011
Export Citation:
Assignee:
UNIV HOKKAIDO NAT UNIV CORP (JP)
OKAMOTO ATSUSHI
KUNORI KEISUKE
TAKABAYASHI MASANORI
OKAMOTO ATSUSHI
KUNORI KEISUKE
TAKABAYASHI MASANORI
International Classes:
G11B7/135; G03H1/22; G11B7/0065
Foreign References:
| JP2008203503A | 2008-09-04 | |||
| JP2010019984A | 2010-01-28 | |||
| JP2008065961A | 2008-03-21 | |||
| JP2010234640A | 2010-10-19 |
Other References:
KEN-ICHI SHIMADA; TOSHIKI ISHII; TATSURO IDE; STEVE HUGHES; ALAN HOSKINS; KEVIN CURTIS: "High density recording using Monocular architecture for 500 GB consumer system", OPTICAL DATA STORAGE (ODS) TOPICAL MEETING, TUC2, 2009
P. J. VAN HEERDEN: "Theory of Optical Information Storage in Solids", APPL. OPT., vol. 2, no. 4, 1963, pages 393 - 400
KENJI TANAKA; MASAAKI HARA; KAZUTATSU TOKUYAMA; KAZUYUKI HIROOKA; KOJI LSHIOKA; ATSUSHI FUKUMOTO; KENJIRO WATANABE: "Improved performance in coaxial holographic data recording", OPT. EXP., vol. 15, no. 24, 2007, pages 16196 - 16209
JOBY JOSEPH; DAVID A. WALDMAN: "Homogenized Fourier transform holographic data storage using phase spatial light modulators and methods for recovery of data from the phase image", APPL. OPT., vol. 45, 2006, pages 6374 - 6380
GEOFFREY W. BURR; JONATHAN ASHLEY; HANS COUFAL; ROBERT K. GRYGIER; JOHN A. HOFFNAGLE; C. MICHAEL JEFFERSON; BRIAN MARCUS: "Modulation coding for pixel-matched holographic data storage", OPT. LETT., vol. 22, 1997, pages 639 - 641
JINYOUNG KIM; JAEJIN LEE: "Two-Dimensional 5:8 Modulation Code for Holographic Data Storage", JPN. J. OF APPL. PHYS., vol. 48, 2009, pages 03A031 - 1,03A031-4
GEOFFREY W. BURR; GABRIELE BARKING; HANS COUFAL; JOHN A. HOFFNAGLE; C. MICHAEL JEFFCRSON; MARK A. NEIFELD: "Gray-scale data pages for digital holographic data storage", OPT. LETT., vol. 23, no. 15, 1998, pages 1218 - 1220
PAL KOPPA: "Phase-to-amplitude data page conversion for holographic storage and optical encryption", APPL. OPT., vol. 46, 2007, pages 3561 - 3571
MITSUTERU INOUE: "Light phase lock-type collinear holography (toward realization of next-generation collinear hologram memory", OPTRONICS, 2008, pages 76 - 80
ICHIROU YAMAGUCHI; TONG ZHANG: "Phase-shifting digital holography", OPT. LETT., vol. 22, 1997, pages 1268 - 1270
YASUHIRO AWATSUJI; ATSUSHI FUJII; TOSHIHIRO KUBOTA; OSAMU MATOBA: "Parallel three-step phase-shifting digital holography", APPL. OPT., vol. 45, 2006, pages 2995 - 3002
HIDEYOSHI HORIMAI; XIAODI TAN; JUN LI: "Collinear holography", APPL. OPT., vol. 44, 2005, pages 2575 - 2579
JUNYA TANAKA; ATSUSHI OKAMOTO; MOTOKI KITANO: "Development of Image-Based Stimulation for Holographic Data Storage System by Fast Fourier Transform Beam-Propagation Method", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 48, no. 3, 2009, pages 03A028
P. J. VAN HEERDEN: "Theory of Optical Information Storage in Solids", APPL. OPT., vol. 2, no. 4, 1963, pages 393 - 400
KENJI TANAKA; MASAAKI HARA; KAZUTATSU TOKUYAMA; KAZUYUKI HIROOKA; KOJI LSHIOKA; ATSUSHI FUKUMOTO; KENJIRO WATANABE: "Improved performance in coaxial holographic data recording", OPT. EXP., vol. 15, no. 24, 2007, pages 16196 - 16209
JOBY JOSEPH; DAVID A. WALDMAN: "Homogenized Fourier transform holographic data storage using phase spatial light modulators and methods for recovery of data from the phase image", APPL. OPT., vol. 45, 2006, pages 6374 - 6380
GEOFFREY W. BURR; JONATHAN ASHLEY; HANS COUFAL; ROBERT K. GRYGIER; JOHN A. HOFFNAGLE; C. MICHAEL JEFFERSON; BRIAN MARCUS: "Modulation coding for pixel-matched holographic data storage", OPT. LETT., vol. 22, 1997, pages 639 - 641
JINYOUNG KIM; JAEJIN LEE: "Two-Dimensional 5:8 Modulation Code for Holographic Data Storage", JPN. J. OF APPL. PHYS., vol. 48, 2009, pages 03A031 - 1,03A031-4
GEOFFREY W. BURR; GABRIELE BARKING; HANS COUFAL; JOHN A. HOFFNAGLE; C. MICHAEL JEFFCRSON; MARK A. NEIFELD: "Gray-scale data pages for digital holographic data storage", OPT. LETT., vol. 23, no. 15, 1998, pages 1218 - 1220
PAL KOPPA: "Phase-to-amplitude data page conversion for holographic storage and optical encryption", APPL. OPT., vol. 46, 2007, pages 3561 - 3571
MITSUTERU INOUE: "Light phase lock-type collinear holography (toward realization of next-generation collinear hologram memory", OPTRONICS, 2008, pages 76 - 80
ICHIROU YAMAGUCHI; TONG ZHANG: "Phase-shifting digital holography", OPT. LETT., vol. 22, 1997, pages 1268 - 1270
YASUHIRO AWATSUJI; ATSUSHI FUJII; TOSHIHIRO KUBOTA; OSAMU MATOBA: "Parallel three-step phase-shifting digital holography", APPL. OPT., vol. 45, 2006, pages 2995 - 3002
HIDEYOSHI HORIMAI; XIAODI TAN; JUN LI: "Collinear holography", APPL. OPT., vol. 44, 2005, pages 2575 - 2579
JUNYA TANAKA; ATSUSHI OKAMOTO; MOTOKI KITANO: "Development of Image-Based Stimulation for Holographic Data Storage System by Fast Fourier Transform Beam-Propagation Method", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 48, no. 3, 2009, pages 03A028
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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