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

被引：33

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

页码：3561 / 3571

页数：11

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