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Proceedings Paper

Thermooptical Effect In Ti:LiNbO3 Planar Waveguide
Author(s): A. W. Domanski; S. Kostrzewa; S. J. Saddawi; Izabela Pankowska
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Paper Abstract

Thermooptical effect in integrated optoelectronic may be used for such devices as modulators, switches. However in waveguides utilizing electrooptic effect near cut-off, additional influence of thermooptic effect may introduce significant perturbation. Appearance of this effect may result from principle of operation of the electrooptical modulator (in the electrode system takes place losses of power) or due to the changes of atmospheric environment. This work concerns investigation aimed at qualitative determination of the effect of these perturbation. Planar waveguide manufactured by diffusion technique were tested. Calculations based on experimental data were used to evaluate changes of the refractive index of the waveguide layer as a function of temperature. Also the temperature effects of the transmission curve in waveguides were investigated (by simultanious interaction of temperature and electric field). It was shown that the thermooptic effect has a significant influence on the character and the point of the waveguide operation on the transmission curve.

Paper Details

Date Published: 30 January 1990
PDF: 5 pages
Proc. SPIE 1085, Optical Fibres and Their Applications V, (30 January 1990); doi: 10.1117/12.952972
Show Author Affiliations
A. W. Domanski, Warsaw University of Technology (Poland)
S. Kostrzewa, Warsaw University of Technology (Poland)
S. J. Saddawi, Warsaw University of Technology (Poland)
Izabela Pankowska, Warsaw University of Technology (Poland)


Published in SPIE Proceedings Vol. 1085:
Optical Fibres and Their Applications V

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