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Proceedings Article

Beyond volume holographic storage: applications of phase-coded multiplexing to image processing and encryption

[+] Author Affiliations
Cornelia Denz, Kai-Oliver Mueller, Franz Visinka, Gernot Berger, Theo T. Tschudi

Darmstadt Univ. of Technology (Germany)

Proc. SPIE 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI, 254 (October 19, 2000); doi:10.1117/12.404788
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From Conference Volume 4110

  • Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI
  • Shizhuo Yin; Francis T. S. Yu
  • San Diego, CA, USA | July 30, 2000

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.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Cornelia Denz ; Kai-Oliver Mueller ; Franz Visinka ; Gernot Berger and Theo T. Tschudi
"Beyond volume holographic storage: applications of phase-coded multiplexing to image processing and encryption", Proc. SPIE 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI, 254 (October 19, 2000); doi:10.1117/12.404788; http://dx.doi.org/10.1117/12.404788


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