Title :
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
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;
Conference_Titel :
Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. 5th International Workshop on
Print_ISBN :
0-7803-7709-5
DOI :
10.1109/LFNM.2003.1246123
