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Proceedings Paper

Localized holographic recording in doubly doped lithium niobate
Author(s): Christophe Moser; Benjamin Schupp; Irena Maravic; Demetri Psaltis
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Paper Abstract

In holographic data storage, pages of information are overlapped in the volume of the recording medium. Due to destructive read-out of holograms in photorefractive crystals such as LiNbO3:Fe, holograms are recorded with an exposure schedule in order to equalize diffraction efficiency. This leads to a final diffraction efficiency proportional to 1/M2, where M is the number of exposures. Coherent erasure of a particular page also erases all the other pages stored in the same volume. We believe to have found a technique that does not require an exposure schedule and that can record M holograms with diffraction efficiency following a 1/M dependence. Our technique is based on non-destructive read-out in doubly-doped LiNbO3. The technique is based on the recording of localized holograms in thin layers across the volume of the crystal.

Paper Details

Date Published: 24 May 2000
PDF: 8 pages
Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); doi: 10.1117/12.386813
Show Author Affiliations
Christophe Moser, California Institute of Technology (United States)
Benjamin Schupp, California Institute of Technology (United States)
Irena Maravic, California Institute of Technology (United States)
Demetri Psaltis, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 4089:
Optics in Computing 2000
Roger A. Lessard; Tigran V. Galstian, Editor(s)

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