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Proceedings Paper

Photorefractive Zn:Fe:LiNbO3 crystal for volume holographic storage application
Author(s): Jian Zhao; Jiangang Wang; Qingsheng He; Minxian Wu; Guofan Jin
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Paper Abstract

For the application of volume holographic storage with large capacity and high density, the performance of Zn:Fe:LiNbO3 crystal is studied. Through the study of the absorption spectra and the diffractive efficiency curve of samples with various doping concentrations and oxidation/reduction treatment, some important properties are derived and analyzed in this paper. We find that Zn:Fe:LiNbO3 crystal has better performance for volume holographic stroage, such as high diffractive efficiency, short response time, broad angle range for multiplexing, and high photo-scattering resistance. The recording schedule for multiplexing holograms with equal diffractive efficiency is also deduced. On the basis of these results, five hundred volume holographic pages, each containing 1024×768 pixels and having same diffractive efficiency, are stored and read out in a common volume of Zn:Fe:LiNbO3 by using the 90° geometry and angle multiplexing. By improving the multiplexing technology and choosing proper samples, we can realize larger capacity and higher density.

Paper Details

Date Published: 17 September 2002
PDF: 4 pages
Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483356
Show Author Affiliations
Jian Zhao, Tsinghua Univ. (China)
Jiangang Wang, Tsinghua Univ. (China)
Qingsheng He, Tsinghua Univ. (China)
Minxian Wu, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 4930:
Advanced Optical Storage Technology
Duanyi Xu; Seiya Ogawa, Editor(s)

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