Improvement of Storage Capacity Using Confocal Scheme in Reflection-Type Holographic Memory System with Speckle Shift Multiplexing

被引：6
|
作者：
Matoba, Osamu [1 ]
Yonetani, Yusuke [1 ]
Nitta, Kouichi [1 ]
机构：
[1] Kobe Univ, Grad Sch Syst Informat, Dept Syst Sci, Kobe, Hyogo 6578501, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2011年 / 50卷 / 09期
关键词：
DISK MEMORY;
D O I：
10.1143/JJAP.50.09ME08
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The storage capacity of a reflection-type holographic memory with three-dimensional speckle shift multiplexing embedded in a confocal scheme is presented. The confocal optical system can eliminate the interpage cross-talk noise in the speckle shift multiplexing. This leads to the increase in signal-to-noise ratio and the decrease in bit error rate. Numerical simulation results show that a maximum storage capacity can be increased up to 4.35 Tbyte/disk by using the confocal scheme. This value is derived numerically from the ideal situations of recording medium and evaluation of bit error rate in three-dimensional multiplexing. (C) 2011 The Japan Society of Applied Physics
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页数：5
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