Available number of multiplexed holograms based on signal-to-noise ratio analysis in reflection-type holographic memory using three-dimensional speckle-shift multiplexing

被引：4
|
作者：
Nishizaki, Tatsuya [1 ]
Matoba, Osamu [1 ]
Nitta, Kouichi [1 ]
机构：
[1] Kobe Univ, Grad Sch Syst Informat, Dept Syst Sci, Kobe, Hyogo 6578501, Japan
来源：
APPLIED OPTICS | 2014年 / 53卷 / 25期
关键词：
DISK MEMORY;
D O I：
10.1364/AO.53.005733
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The recording properties of three-dimensional speckle-shift multiplexing in reflection-type holographic memory are analyzed numerically. Three-dimensional recording can increase the number of multiplexed holograms by suppressing the cross-talk noise from adjacent holograms by using depth-direction multiplexing rather than in-plane multiplexing. Numerical results indicate that the number of multiplexed holograms in three-layer recording can be increased by 1.44 times as large as that of a single-layer recording when an acceptable signal-to-noise ratio is set to be 2 when NA = 0.43 and the thickness of the recording medium is 0.5 mm. (C) 2014 Optical Society of America
引用
收藏
页码：5733 / 5739
页数：7
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