The feasibility research on phase-shift multiplexing for holographic storage

Wei Song; Shiquan Tao; Qianli Zhai; Yuhong Wan

doi:10.1117/12.870181

2 December 2010 The feasibility research on phase-shift multiplexing for holographic storage

Wei Song, Shiquan Tao, Qianli Zhai, Yuhong Wan

Proceedings Volume 7851, Information Optics and Optical Data Storage; 78510E (2010) https://doi.org/10.1117/12.870181
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

In this paper, the position selectivity of holograms recorded with orthogonal-phase coded reference beams is investigated by numerical simulation and preliminary experiments. The results of numerical simulation show that with a phase-coded reference beam, the brightness of the reconstructed image is sensitive to the relative shift between the hologram and the phase-coding pattern of the reference beam. The position selectivity is not worse than 40μm in both lateral directions. The results of preliminary experiments also show that the position selectivity is even better. According to both the numerical simulation and the experiments, it is clear that with orthogonal phase-coded reference beams, the position selectivity can be satisfying for holographic storage. This suggests that a new hybrid multiplexing method, which incorporates orthogonal phase-coding multiplexing into shift-multiplexing, could be suitable for high-density and high-fidelity holographic storage.

Citation Download Citation

Wei Song, Shiquan Tao, Qianli Zhai, and Yuhong Wan "The feasibility research on phase-shift multiplexing for holographic storage", Proc. SPIE 7851, Information Optics and Optical Data Storage, 78510E (2 December 2010); https://doi.org/10.1117/12.870181

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KEYWORDS

Multiplexing

3D image reconstruction

Holography

Numerical simulations

Holograms

Fourier transforms

Phase shifts

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