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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 17 — Jun. 10, 2014
  • pp: 3773–3781

Design of high-resolution and multilevel reference pattern for improvement of both light utilization efficiency and signal-to-noise ratio in coaxial holographic data storage

Teruyoshi Nobukawa and Takanori Nomura  »View Author Affiliations


Applied Optics, Vol. 53, Issue 17, pp. 3773-3781 (2014)
http://dx.doi.org/10.1364/AO.53.003773


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Abstract

A high-resolution and multilevel designed reference pattern (DRP) is presented for improvement of both light utilization efficiency and the signal-to-noise ratio (SNR) of reconstructed images in coaxial holographic data storage. With a DRP, the desired Fourier power spectrum of a reference beam is obtained. Numerical and experimental results show that the DRP increases the SNR compared with that of a random phase mask (RPM). Moreover, the light utilization efficiency of the DRP is higher than that of a high-resolution RPM. In addition, the effect of the phase level and the pixel pitch of DRPs on the SNR and the light utilization efficiency are investigated.

© 2014 Optical Society of America

OCIS Codes
(090.2890) Holography : Holographic optical elements
(090.7330) Holography : Volume gratings
(210.2860) Optical data storage : Holographic and volume memories

ToC Category:
Holography

History
Original Manuscript: March 13, 2014
Revised Manuscript: May 9, 2014
Manuscript Accepted: May 9, 2014
Published: June 10, 2014

Citation
Teruyoshi Nobukawa and Takanori Nomura, "Design of high-resolution and multilevel reference pattern for improvement of both light utilization efficiency and signal-to-noise ratio in coaxial holographic data storage," Appl. Opt. 53, 3773-3781 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-17-3773

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