Abstract
Evanescent field perturbation of an integrated microring resonator is examined as a means of achieving high-fidelity reversible tuning of photonic microcavities over large wavelength ranges. A 1.7% wavelength tuning is achieved through the use of a novel silica fiber probe that provides access to the evanescent field of an air-clad high-index-contrast ring resonator. As the microring is perturbed, the probe–ring distance is found through simultaneous nanometric distance calibration and force measurements. Experimental results agree well with theoretical tuning. Possible microelectromechanical systems implementation of this effect is discussed, as well as avenues for improvement of the tuning range.
© 2006 Optical Society of America
Full Article | PDF ArticleOSA Recommended Articles
Iwan Märki, Martin Salt, and Hans Peter Herzig
Opt. Express 14(7) 2969-2978 (2006)
Wout De Cort, Jeroen Beeckman, Richard James, F. Anibal Fernández, Roel Baets, and Kristiaan Neyts
Opt. Lett. 34(13) 2054-2056 (2009)
Carlos Errando-Herranz, Frank Niklaus, Göran Stemme, and Kristinn B. Gylfason
Opt. Lett. 40(15) 3556-3559 (2015)