KEYWORDS: Phase reconstruction, Holography, Data storage, Image processing, Phase shift keying, Image compression, Diffraction, Deep learning, Photonics, Education and training
Holographic data storage systems are candidates for information recording due to their large storage capacity and high transmission rate. In this paper, a phase modulation holographic storage technology with three-grayscale encoding is proposed and implemented. According to the experimental results, if two phase codes in the three-grayscale encoding are relatively close, the performance of phase reconstruction would be degenerated.
Displacement multiplexing can improve the storage density of collinear holographic data storage systems and is an essential multiplexing method. This article introduces the use of dark reaction phenomena in recording media to improve the displacement multiplexing effect of collinear holographic data storage systems, and achieves a multiplexing distance of 5 μm.
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