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Tuning of silicon-on-insulator ring resonators with liquid crystal cladding using the longitudinal field component

Wout De Cort, Jeroen Beeckman, Richard James, F. Anibal Fernández, Roel Baets, and Kristiaan Neyts

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Abstract

We show tuning of the resonance wavelength of silicon-on-insulator microring resonators with liquid crystal cladding. The electro-optic effect of the liquid crystal causes a decrease in effective refractive index for the TE-polarized light in the waveguides. Tuning of the liquid crystal birefringence affects primarily the longitudinal component of the electric field. We achieve a tuning range of 0.6 nm. Through simulation and experiment we perform a thorough study of this phenomenon.

© 2009 Optical Society of America

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