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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 28, Iss. 2 — Feb. 1, 2011
  • pp: 229–237

Angle-multiplexed holographic data storage with minimum cross talk noise

Jung-Ping Liu  »View Author Affiliations


JOSA A, Vol. 28, Issue 2, pp. 229-237 (2011)
http://dx.doi.org/10.1364/JOSAA.28.000229


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Abstract

The cross talk noise-to-signal ratio (NSR) of an angle-multiplexed holographic data storage system is studied, and we propose a method to determine the optimized multiplexing spacing with which the cross talk noise can be less than the conventional method. In our method, the optimization location at the image plane can be chosen arbitrarily, so the multiplexing of asymmetrical image patterns can be optimized. In particular, we investigate the 90 ° scheme and the transmission scheme angle multiplexing. For the 90 ° scheme, a holographic medium with a higher refractive index is recommended for cross talk-limited multiplexing. For the transmission scheme, a holographic medium with a lower refractive index is recommended for angular range-limited multiplexing. In addition, for the transmission scheme, a larger angle between the object arm and the reference arm results in less cross talk noise, whereas the highest storage density is achieved at a 45 ° angle.

© 2011 Optical Society of America

OCIS Codes
(090.4220) Holography : Multiplex holography
(090.7330) Holography : Volume gratings
(210.2860) Optical data storage : Holographic and volume memories

ToC Category:
Holography

History
Original Manuscript: April 30, 2010
Revised Manuscript: September 6, 2010
Manuscript Accepted: November 19, 2010
Published: January 27, 2011

Citation
Jung-Ping Liu, "Angle-multiplexed holographic data storage with minimum cross talk noise," J. Opt. Soc. Am. A 28, 229-237 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-2-229


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