Abstract

We report the optical characterization of an InP structure constituted by waveguides coupled to microcavity disk resonators. The lateral waveguide confinement is obtained by deep reactive ion etching through the guiding layer. We demonstrate the possibility of tuning optically the resonance wavelength into the illuminating disk resonator. We obtained a blueshift of 3nm by laser irradiation at 980nm corresponding to a photoinduced change in the effective refractive index of 6×103. The InP structure behaves as a tunable optical demultiplexer.

© 2006 Optical Society of America

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