Effects of symbol modulation coding on readout fidelity of shift-multiplexed holographic digital data page storage in a photopolymerizable nanoparticle-(thiol-ene) polymer composite film

被引：9

作者：

Takayama, Shingo ^{[1
]}

Nagaya, Kohta ^{[1
]}

Momose, Keisuke ^{[1
]}

Tomita, Yasuo ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Engn Sci, Chofu, Tokyo 1828585, Japan

来源：

APPLIED OPTICS | 2014年 / 53卷 / 10期

关键词：

THIOL-ENE PHOTOPOLYMERIZATION; RECORDING MATERIALS; DOPED PHOTOPOLYMER; GRATINGS; SHRINKAGE; SCATTERING; MEMORY;

D O I：

10.1364/AO.53.000B53

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on shift-multiplexed holographic storage of 250 digital data pages in a photopolymerizable SiO2 nanoparticle-polymer composite film being capable of step-growth thiol-ene polymerization in the green. Various two-dimensional symbol modulation codes for the digital data page format were employed to examine the dependence of the readout fidelity on modulation coding schemes. It is found that, as compared to 1: 2 and 2: 4 modulation codes, higher-order 5: 9, 9: 16, and 13: 25 modulation codes possessing reduced white rates and higher coding efficiencies give lower symbol-error rates of similar to 1 x 10 (-3) and higher signal-to-noise ratios (>4). (C) 2014 Optical Society of America

引用

页码：B53 / B59

页数：7

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