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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 9 — Mar. 20, 2012
  • pp: 1297–1303

Security optical data storage in Fourier holograms

Wei-Chia Su, Yu-Wen Chen, Yu-Jen Chen, Shiuan-Huei Lin, and Li-Karn Wang  »View Author Affiliations

Applied Optics, Vol. 51, Issue 9, pp. 1297-1303 (2012)

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We have proposed and demonstrated a holographic security storage system that is implemented with a shift multiplexing technique. The security function of this storage system is achieved by using a microdiffuser (MD) for random phase encoding of the reference beams. The apparatus of random phase encoding in this system offers an additional and flexible function during the recording processes. The system can generate holographic security memory or nonsecurity holographic memory via using the MD or not. The storage capacity and the average signal-to-noise value of the security storage system are 16bits/μm2 and 3.5, respectively. Lateral shifting selectivity in this holographic security storage system is theoretically analyzed and experimentally investigated.

© 2012 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(210.0210) Optical data storage : Optical data storage
(210.2860) Optical data storage : Holographic and volume memories

ToC Category:
Optical Data Storage

Original Manuscript: November 7, 2011
Revised Manuscript: January 9, 2012
Manuscript Accepted: January 9, 2012
Published: March 15, 2012

Wei-Chia Su, Yu-Wen Chen, Yu-Jen Chen, Shiuan-Huei Lin, and Li-Karn Wang, "Security optical data storage in Fourier holograms," Appl. Opt. 51, 1297-1303 (2012)

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