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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 5 — Feb. 10, 2003
  • pp: 845–860

Density Implications of Shift Compensation Postprocessing in Holographic Storage Systems

Laure Menetrier and Geoffrey W. Burr  »View Author Affiliations


Applied Optics, Vol. 42, Issue 5, pp. 845-860 (2003)
http://dx.doi.org/10.1364/AO.42.000845


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Abstract

We investigate the effect of data page misregistration, and its subsequent correction in postprocessing, on the storage density of holographic data storage systems. A numerical simulation is used to obtain the bit-error rate as a function of hologram aperture, page misregistration, pixel fill factors, and Gaussian additive intensity noise. Postprocessing of simulated data pages is performed by a nonlinear pixel shift compensation algorithm [Opt. Lett. 26, 542 (2001)]. The performance of this algorithm is analyzed in the presence of noise by determining the achievable areal density. The impact of inaccurate measurements of page misregistration is also investigated. Results show that the shift-compensation algorithm can provide almost complete immunity to page misregistration, although at some penalty to the baseline areal density offered by a system with zero tolerance to misalignment.

© 2003 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(210.2860) Optical data storage : Holographic and volume memories

Citation
Laure Menetrier and Geoffrey W. Burr, "Density Implications of Shift Compensation Postprocessing in Holographic Storage Systems," Appl. Opt. 42, 845-860 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-5-845


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