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
Original Manuscript: February 17, 2009
Revised Manuscript: May 11, 2009
Manuscript Accepted: May 25, 2009
Published: June 29, 2009
Wout De Cort, Jeroen Beeckman, Richard James, F. Anibal Fernández, Roel Baets, and Kristiaan Neyts, "Tuning of silicon-on-insulator ring resonators with liquid crystal cladding using the longitudinal field component," Opt. Lett. 34, 2054-2056 (2009)