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Proceedings Paper

Asymmetric shift selectivity control and application for hologram position sensing in collinear holographic information storage system
Author(s): Yawara Kaneko
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Paper 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

Paper Details

Date Published: 12 July 2007
PDF: 9 pages
Proc. SPIE 6620, Optical Data Storage 2007, 66201R (12 July 2007); doi: 10.1117/12.739103
Show Author Affiliations
Yawara Kaneko, TechnoConsulting, Inc. (Japan)


Published in SPIE Proceedings Vol. 6620:
Optical Data Storage 2007

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