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Optical Engineering • Open Access

Two-color holographic recording in a single-doped photorefractive LiNbO3 crystal
Author(s): Jung-Ping Liu; Hong-Shyuan Chen; Wei-Chia Su

Paper Abstract

We recorded a hologram in a photorefractive LiNbO3:Fe crystal with a two-color recording technique in transmission geometry. The holographic recording involves a light with wavelength 633 nm for interference, and a light with wavelength 532 nm for exciting. The short wavelength light excites more charges so that the holographic recording is affected, and the storage capacity (M-number) and the sensitivity vary accordingly. We found that the optimized intensity ratio of the interference lights and the exciting light is between 50 and 60. In the optimized conditions, the M number and the sensitivity are enhanced by 43 and 35%, respectively. Because the crystal we used is a typical iron-doped LiNbO3 crystal and the short wavelength exciting light source is inexpensive now, the proposed method is easy to be achieved in most holographic systems.

Paper Details

Date Published: 1 March 2009
PDF: 3 pages
Opt. Eng. 48(3) 030501 doi: 10.1117/1.3095915
Published in: Optical Engineering Volume 48, Issue 3
Show Author Affiliations
Jung-Ping Liu, Feng Chia Univ. (Taiwan)
Hong-Shyuan Chen, Feng Chia Univ. (Taiwan)
Wei-Chia Su, National Changhua Univ. of Education (Taiwan)


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