Asymmetric shift selectivity control and application for hologram position sensing in collinear holographic information storage system

Yawara Kaneko

doi:10.1117/12.739103

12 July 2007 Asymmetric shift selectivity control and application for hologram position sensing in collinear holographic information storage system

Yawara Kaneko

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Proceedings Volume 6620, Optical Data Storage 2007; 66201R (2007) https://doi.org/10.1117/12.739103
Event: Optical Data Storage 2007, 2007, Portland, OR, United States

Abstract

Asymmetric shift selectivity control is studied based on the collinear holographic information storage system. Pixel patterns for asymmetric shift selectivity of holograms were designed. Characteristics of the shift selectivity were calculated and tested using a static collinear system. The shift selectivity control was performed and the asymmetric shift selectivity was proven successfully. The hologram with asymmetric shift selectivity was applied to the precision alignment process for realizing media interchangeability. Here the position sensing beam should be aligned with the holographic recording beam. It played a significant role as a calibration hologram in the demonstration of the process using a dynamic collinear system including rotating holographic recording disk media fully equipped such as the pit layer. OCIS codes: (090.0090) Holography; (090.4220) Multiplex holography; (210.0210) Optical data storage; (210.2860) Holographic and volume memories

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Yawara Kaneko "Asymmetric shift selectivity control and application for hologram position sensing in collinear holographic information storage system", Proc. SPIE 6620, Optical Data Storage 2007, 66201R (12 July 2007); https://doi.org/10.1117/12.739103

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KEYWORDS

Holograms

Holography

Calibration

Sensing systems

3D image reconstruction

Bismuth

Data storage

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