Two-beam coupling in the photorefractive planar Bi12TiO20/Bi12GeO20 waveguide in the presence of an external square-wave field

Yuri R. Salikaev; Stanislav M. Shandarov; Yuri F. Kargin

doi:10.1117/12.239206

29 April 1996 Two-beam coupling in the photorefractive planar Bi₁₂TiO₂₀/Bi₁₂GeO₂₀ waveguide in the presence of an external square-wave field

Yuri R. Salikaev, Stanislav M. Shandarov, Yuri F. Kargin

Author Affiliations +

Proceedings Volume 2795, Nonlinear Optics of Liquid and Photorefractive Crystals; (1996) https://doi.org/10.1117/12.239206
Event: Nonlinear Optics of Liquid and Photorefractive Crystals, 1995, Ai-Danil, Crimea, Ukraine

Abstract

Two-beam coupling is observed in the planar Bi₁₂TiO₂₀/Bi₁₂GeO₂₀ waveguide in the presence of external square-wave field. The enhancement of the two-beam gain coefficient to the value of 0.77 cm^-1 at (Lambda) equals 2.7 micrometer is achieved. The one level band transport model is extended for two-beam interaction in the waveguide in the presence of external field. From a set of experimental data, an acceptor density, an effective electro-optic coefficient, and a multiplication of carrier mobility and recombination time of the waveguide is estimated.

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Yuri R. Salikaev, Stanislav M. Shandarov, and Yuri F. Kargin "Two-beam coupling in the photorefractive planar Bi₁₂TiO₂₀/Bi₁₂GeO₂₀ waveguide in the presence of an external square-wave field", Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); https://doi.org/10.1117/12.239206

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