Thermooptical Effect In Ti:LiNbO3 Planar Waveguide

A. W. Domanski; S. Kostrzewa; S. J. Saddawi; Izabela Pankowska

doi:10.1117/12.952972

30 January 1990 Thermooptical Effect In Ti:LiNbO₃ Planar Waveguide

A. W. Domanski, S. Kostrzewa, S. J. Saddawi, Izabela Pankowska

Proceedings Volume 1085, Optical Fibres and Their Applications V; (1990) https://doi.org/10.1117/12.952972
Event: Optical Fibers and Their Applications V, 1989, Warsaw, Poland

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.

Citation Download Citation

A. W. Domanski, S. Kostrzewa, S. J. Saddawi, and Izabela Pankowska "Thermooptical Effect In Ti:LiNbO₃ Planar Waveguide", Proc. SPIE 1085, Optical Fibres and Their Applications V, (30 January 1990); https://doi.org/10.1117/12.952972

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KEYWORDS

Refractive index

Waveguides

Modulators

Temperature metrology

Prisms

Electro optics

Electrooptic modulators

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