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Proceedings Paper

Beyond volume holographic storage: applications of phase-coded multiplexing to image processing and encryption
Author(s): Cornelia Denz; Kai-Oliver Mueller; Franz Visinka; Gernot Berger; Theo T. Tschudi
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Paper Abstract

We present several encryption techniques for holographic data storage, using orthogonal phase-code multiplexing and random phase encoding. Our system is capable of storing page-oriented data based on the selectivity of orthogonal phase-codes in a photorefractive LiNbO3 storage crystal. In order to encrypt data, random phase multiplexing is added to the system. We proof that the combination of deterministic and random phase code multiplexing is possible with low cross-talk and take advantage of this technique for an extremely secure data encryption. Moreover, the potential of phase-code multiplexing to realize arithmetic operations is exploited for data encryption purposes.

Paper Details

Date Published: 19 October 2000
PDF: 8 pages
Proc. SPIE 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI, (19 October 2000); doi: 10.1117/12.404788
Show Author Affiliations
Cornelia Denz, Darmstadt Univ. of Technology (Germany)
Kai-Oliver Mueller, Darmstadt Univ. of Technology (Germany)
Franz Visinka, Darmstadt Univ. of Technology (Germany)
Gernot Berger, Darmstadt Univ. of Technology (Germany)
Theo T. Tschudi, Darmstadt Univ. of Technology (Germany)


Published in SPIE Proceedings Vol. 4110:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI
Shizhuo Yin; Francis T. S. Yu, Editor(s)

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