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Crosstalk Analysis of Multilayer Collinear Volume Holographic Data Storage

机译:多层共线体积全息数据存储的串扰分析

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摘要

An optical model to describe the reconstructed image of the collinear holographic data storage system is presented. The 2-D shape of the recording spot in the medium is simulated. The system structure parameters that influence the signal-to-noise ratio (SNR) of the reconstructed image are investigated in order to choose proper optical components to improve data storage density of the system. The role of the random binary phase mask (RBPM) utilized in the multilayer collinear holographic system is investigated. It is proved that the inter-layer crosstalk can be effectively suppressed by using different RBPMs. Different layers of data pages can be recorded with the SNR increased by a factor of six at least and the shift selectivity along z-axis can also be improved significantly.
机译:提出了描述共线全息数据存储系统重建图像的光学模型。模拟了介质中记录点的二维形状。研究了影响重构图像信噪比(SNR)的系统结构参数,以选择合适的光学组件来提高系统的数据存储密度。研究了在多层共线全息系统中使用的随机二进制相位掩模(RBPM)的作用。事实证明,通过使用不同的RBPM,可以有效地抑制层间串扰。可以记录数据页的不同层,并且SNR至少增加六倍,并且沿z轴的移动选择性也可以得到显着提高。

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