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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 29 — Oct. 10, 1998
  • pp: 6951–6968

Interleaving and error correction in volume holographic memory systems

Wu-chun Chou and Mark A. Neifeld  »View Author Affiliations


Applied Optics, Vol. 37, Issue 29, pp. 6951-6968 (1998)
http://dx.doi.org/10.1364/AO.37.006951


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Abstract

We study the use of error-correction coding (ECC) and two-dimensional interleaving for volume holographic memory (VHM) systems suffering from both random and systematic errors. The bit-error rate (BER) is used as the data-fidelity measure and as a design metric for optical 4f systems. The correlated error patterns arising from both lens aberrations and misalignment errors are analyzed, and we discuss the information theoretic storage capacity of VHM in the presence of such correlated error patterns. The performance of interleaving and ECC is analyzed from both BER and storage-capacity perspectives. Magnification, rotation, tilt, and defocus errors are also studied, and an experimental demonstration that combines ECC with two-dimensional interleaving is included.

© 1998 Optical Society of America

OCIS Codes
(210.2860) Optical data storage : Holographic and volume memories

History
Original Manuscript: January 22, 1998
Revised Manuscript: May 26, 1998
Published: October 10, 1998

Citation
Wu-chun Chou and Mark A. Neifeld, "Interleaving and error correction in volume holographic memory systems," Appl. Opt. 37, 6951-6968 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-29-6951

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