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Proceedings Paper

Temperature dependence of light-induced scattering in a Ce:Fe:LiNbO3 photorefractive crystal
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Paper Abstract

Light-induced scattering in a Ce:Fe:LiNbO3 crystal is highly temperature dependent. By considering the effect due to thermally activated ions in a photorefractive crystal, we have shown that the photo-induced space-charge field is neutralized by the activated ions. This neutralization in turn leads to scattering noise reduction in the crystal. By raising the crystal temperature, we have observed a reduction in scattering noise, which is consistent with our prediction. The signal-to-noise ratio (SNR) in a two-wave mixing amplification due to thermal activation effect is analyzed. Experimental demonstrations using a Ce:Fe:LiNbO3 crystal are provided, in which we have shown that the SNR improves as the crystal temperature increases.

Paper Details

Date Published: 18 August 1995
PDF: 10 pages
Proc. SPIE 2529, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications, (18 August 1995); doi: 10.1117/12.217024
Show Author Affiliations
Feng Zhao, The Pennsylvania State Univ. (United States)
Hanying Zhou, The Pennsylvania State Univ. (United States)
Zhongkong Wu, The Pennsylvania State Univ. (United States)
Francis T. S. Yu, The Pennsylvania State Univ. (United States)
Deanna K. McMillen, U.S. Army Missile Command (United States)


Published in SPIE Proceedings Vol. 2529:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications
Francis T. S. Yu, Editor(s)

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