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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 32, Iss. 20 — Jul. 10, 1993
  • pp: 3772–3778

Storage capacity and cross talk in angularly multiplexed holograms: two case studies

Kasra Rastani  »View Author Affiliations


Applied Optics, Vol. 32, Issue 20, pp. 3772-3778 (1993)
http://dx.doi.org/10.1364/AO.32.003772


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Abstract

Storage capacity of a volume is derived based on the space–bandwidth products of angularly multiplexed holograms and by considering their diffraction efficiency and cross-talk limitations. An erasable medium of Fe:LiNbO3 (10 mm × 10 mm × 2 mm) is simulated that yields a capacity of ~26 Gbits for 95 holograms, each with an efficiency of ~10−4, for a total of ~ −31-dB cross talk. The recording time is estimated at 0.7 s (assuming 103 W/m2 and λ = 0.5 μm). A nonerasable dichromated gelatin medium 10 mm × 10 mm × 0.025 mm is also analyzed that yields a capacity of ~3.3 Gbits for 11 holograms with efficiency of 0.09 and ~ −25-dB cross talk.

© 1993 Optical Society of America

History
Original Manuscript: May 28, 1992
Published: July 10, 1993

Citation
Kasra Rastani, "Storage capacity and cross talk in angularly multiplexed holograms: two case studies," Appl. Opt. 32, 3772-3778 (1993)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-32-20-3772

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