Photoinduced absorption in a planar BTO/BSO waveguide

Author

Frolova, Marina ; Borodin, Maxim ; Shandarov, Stanislav ; Shandarov, Vladimir ; Egorysheva, Anna ; Kargin, Yury ; Volkov, Vladimir ; Kip, Detlef

Author_Institution

State Univ. of Ccontrol Syst. & Radioelectron., Tomsk, Russia

fYear

2003

fDate

19-20 Sept. 2003

Firstpage

192

Lastpage

193

Abstract

We present the results of experimental observation of the dynamics of the absorption coefficient changing in the planar photorefractive waveguide Bi₁₂TiO₂₀ formed on Bi₁₂SiO₂₀ substrate. The Bi₁₂TiO₂₀ film with high optical quality was grown on a substrate of single-crystal Bi₁₂SiO₂₀ by crystallization from the melt. The radiation of helium-neon laser with the wavelength λ=0.63 μm was propagated through the waveguide, the light of red and green light-diode was used as background illumination. We investigate the photoinduced effect for low-number (1-3) and high-number (7-10) waveguides modes with background illumination and without one.

Keywords

absorption coefficients; bismuth compounds; gas lasers; helium; laser beam effects; laser modes; neon; optical films; optical planar waveguides; photorefractive materials; 0.63 micron; Bi12TiO20-Bi12SiO20; Bi₁₂TiO₂₀ film; Bi₁₂TiO₂₀-BSO; He-Ne; absorption coefficient; crystallization; green light-diode; helium-neon laser; high-number waveguides modes; low-number waveguides modes; photoinduced absorption; planar BTO-BSO waveguide; planar photorefractive waveguide; Absorption; Bismuth; Crystallization; Lighting; Optical films; Optical planar waveguides; Optical waveguides; Photorefractive effect; Planar waveguides; Substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. 5th International Workshop on

Print_ISBN

0-7803-7709-5

Type

conf

DOI

10.1109/LFNM.2003.1246123

Filename

1246123