Phase-to-amplitude data page conversion for holographic storage and optical encryption
Applied Optics, Vol. 46, Issue 17, pp. 3561-3571 (2007)
http://dx.doi.org/10.1364/AO.46.003561
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Abstract
A new phase-to-amplitude data page conversion method is proposed for efficient recovery of the data encoded in phase-modulated data pages used in holographic storage and optical encryption. The method is based on the interference between the data page and its copy shifted by an integral number of pixels. Key properties such as Fourier plane homogeneity, bit error rate, and positioning tolerances are investigated by computer modeling, and a comparison is provided with amplitude-modulated data page holographic storage with and without static phase masks. The feasibility and the basic properties of the proposed method are experimentally demonstrated. The results show that phase-modulated data pages can be used efficiently with reduced system complexity.
© 2007 Optical Society of America
OCIS Codes
(200.0200) Optics in computing : Optics in computing
(200.4540) Optics in computing : Optical content addressable memory processors
(200.4560) Optics in computing : Optical data processing
(210.0210) Optical data storage : Optical data storage
(210.2860) Optical data storage : Holographic and volume memories
ToC Category:
Optical Computing
History
Original Manuscript: November 7, 2006
Revised Manuscript: February 28, 2007
Manuscript Accepted: March 1, 2007
Published: May 18, 2007
Citation
Pál Koppa, "Phase-to-amplitude data page conversion for holographic storage and optical encryption," Appl. Opt. 46, 3561-3571 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-17-3561
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