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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 32 — Nov. 10, 1999
  • pp: 6779–6784

Content-addressable data storage by use of volume holograms

Geoffrey W. Burr, Sebastian Kobras, Holger Hanssen, and Hans Coufal  »View Author Affiliations


Applied Optics, Vol. 38, Issue 32, pp. 6779-6784 (1999)
http://dx.doi.org/10.1364/AO.38.006779


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Abstract

Data stored as volume holograms—optical interference patterns imprinted into a photosensitive storage material—can be accessed both by address and by content. An optical correlation-based search compares each input query against all stored records simultaneously, a massively parallel but inherently noisy analog process. With data encoding and signal postprocessing we demonstrate a holographic content-addressable data-storage system that searches digital data with high search fidelity.

© 1999 Optical Society of America

OCIS Codes
(200.4540) Optics in computing : Optical content addressable memory processors
(210.2860) Optical data storage : Holographic and volume memories

History
Original Manuscript: March 17, 1999
Revised Manuscript: August 3, 1999
Published: November 10, 1999

Citation
Geoffrey W. Burr, Sebastian Kobras, Holger Hanssen, and Hans Coufal, "Content-addressable data storage by use of volume holograms," Appl. Opt. 38, 6779-6784 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-32-6779

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