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Conferences > OFS > 2006 > ThE > ThE84

Influence of External Medium Refractive Index on the Waveguide Dispersion Factor and Thermo-Optic Coefficient of Cascaded Long-Period Gratings

Ricardo C. Kamikawachi, Gustavo R. C. Possetti, Márcia Muller, and José L. Fabris

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Abstract

We report the thermal sensitivity dependence of a cascaded long period grating on the external medium refractive index. The device thermal sensitivity, waveguide dispersion factor and thermo-optic coefficient in the presence or air, water and alcohol are obtained. Changes in the thermo-optic coefficient due variations in the external refractive index are the main cause of changes in the thermal sensitivity.

© 2006 IEICE

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