Phase-to-amplitude data page conversion for holographic storage and optical encryption

被引：30
作者：
Koppa, Pal [1 ]
机构：
[1] Budapest Univ Technol & Econ, Dept Atom Phys, H-1111 Budapest, Hungary
来源：
APPLIED OPTICS | 2007年 / 46卷 / 17期
关键词：
D O I：
10.1364/AO.46.003561
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new phase-to-amplitude data page conversion method is proposed for efficient recovery of the data encoded in phase-modulated data pages used in holographic storage and optical encryption. The method is based on the interference between the data page and its copy shifted by an integral number of pixels. Key properties such as Fourier plane homogeneity, bit error rate, and positioning tolerances are investigated by computer modeling, and a comparison is provided with amplitude-modulated data page holographic storage with and without static phase masks. The feasibility and the basic properties of the proposed method are experimentally demonstrated. The results show that phase-modulated data pages can be used efficiently with reduced system complexity. (C) 2007 Optical Society of America.
引用
收藏
页码：3561 / 3571
页数：11
相关论文
共 16 条
  • [1] Experimental study of the effects of a six-level phase mask on a digital holographic storage system
    Bernal, MP
    Burr, GW
    Coufal, H
    Hoffnagle, JA
    Jefferson, CM
    Macfarlane, RM
    Shelby, RM
    Quintanilla, M
    [J]. APPLIED OPTICS, 1998, 37 (11): : 2094 - 2101
  • [2] Ternary phase-amplitude modulation with twisted nematic liquid crystal displays for Fourier-plane light homogenization in holographic data storage
    Domján, L
    Koppa, P
    Szarvas, G
    Reményi, J
    [J]. OPTIK, 2002, 113 (09): : 382 - 390
  • [3] Optimal phase contrast in common-path interferometry
    Glückstad, J
    Mogensen, PC
    [J]. APPLIED OPTICS, 2001, 40 (02) : 268 - 282
  • [4] Jayalath ADS, 2001, IEEE VTS VEH TECHNOL, P1111, DOI 10.1109/VTC.2001.956947
  • [5] Phase-image-based content-addressable holographic data storage
    John, R
    Joseph, J
    Singh, K
    [J]. OPTICS COMMUNICATIONS, 2004, 232 (1-6) : 99 - 106
  • [6] Homogenized Fourier transform holographic data storage using phase spatial light modulators and methods for recovery of data from the phase image
    Joseph, Joby
    Waldman, David A.
    [J]. APPLIED OPTICS, 2006, 45 (25) : 6374 - 6380
  • [7] KOPPA P, 2006, Patent No. 0601356962210
  • [8] Phase-only optical encryption
    Mogensen, PC
    Glückstad, J
    [J]. OPTICS LETTERS, 2000, 25 (08) : 566 - 568
  • [9] Implementation of image encryption using the phase-contrast technique
    Neto, LG
    [J]. OPTICAL PATTERN RECOGNITION IX, 1998, 3386 : 284 - 290
  • [10] Amplitude, phase, and hybrid ternary modulation modes of a twisted-nematic liquid-crystal display at ∼400 nm
    Remènyi, J
    Várhegyi, P
    Domján, L
    Koppa, P
    Lorincz, E
    [J]. APPLIED OPTICS, 2003, 42 (17) : 3428 - 3434
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