DocumentCode :
31114
Title :
Theoretical Estimation of Refractive Index of Continuous Wave UV Induced Waveguide in LiNbO 
Considering Temperature Dependent Absorption Coefficient
Author :
Ghosh, T. ; Samanta, Biswanath ; Jana, Paresh Chandra ; Ganguly, Prapti
Author_Institution :
Dept. of Phys. & Technophysics, Vidyasagar Univ., Midnapur, India
Volume :
31
Issue :
16
fYear :
2013
fDate :
Aug.15, 2013
Firstpage :
2728
Lastpage :
2734
Abstract :
A theoretical modeling of continuous wave UV laser induced waveguides in congruent LiNbO3 is presented considering temperature dependent absorption coefficients at 305 nm and 275 nm writing wavelengths. The extrapolated empirical relations of absorption coefficient with temperature, extracted from the published experimental data, is used for the purpose. Some of the previously published experimental findings of the fabricated waveguides are justified with this model, which otherwise seem impossible.
Keywords :
absorption coefficients; laser materials processing; lithium compounds; optical materials; optical waveguide theory; refractive index measurement; thermo-optical effects; LiNbO3; continuous wave UV laser induced waveguides; extrapolated empirical relations; laser writing process; refractive index estimation; temperature dependent absorption coefficient; wavelength 275 nm; wavelength 305 nm; Absorption; Lithium niobate; Optical waveguides; Temperature distribution; Waveguide lasers; Writing; Absorption coefficient; CW UV-written waveguide; Li-diffusion; LiNbO $_{3}$ ; refractive index distribution; temperature profile;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2013.2272997
Filename :
6556968
Link To Document :
