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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 32 — Nov. 10, 2009
  • pp: 6234–6240

Improving signal-to-noise ratio by use of a cross-shaped aperture in the holographic data storage system

Huarong Gu, Songfeng Yin, Qiaofeng Tan, Liangcai Cao, Qingsheng He, and Guofan Jin  »View Author Affiliations


Applied Optics, Vol. 48, Issue 32, pp. 6234-6240 (2009)
http://dx.doi.org/10.1364/AO.48.006234


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Abstract

A cross-shaped aperture is proposed to improve signal-to-noise ratio (SNR) in the holographic data stor age system (HDSS). Both simulated and experimental results show that higher SNR can be achieved by the cross-shaped aperture than traditional square or circular apertures with the same area. A maximum gain of 20% in SNR is obtained for the optimized cross-shaped aperture. The sensitivities to pixel misalignment and magnification error are also numerically compared.

© 2009 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(210.2860) Optical data storage : Holographic and volume memories

ToC Category:
Optical Data Storage

History
Original Manuscript: June 29, 2009
Revised Manuscript: October 14, 2009
Manuscript Accepted: October 14, 2009
Published: November 4, 2009

Citation
Huarong Gu, Songfeng Yin, Qiaofeng Tan, Liangcai Cao, Qingsheng He, and Guofan Jin, "Improving signal-to-noise ratio by use of a cross-shaped aperture in the holographic data storage system," Appl. Opt. 48, 6234-6240 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-32-6234

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