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All silicon waveguide spherical microcavity coupler device

2011; Optica Publishing Group; Volume: 19; Issue: 4 Linguagem: Inglês

10.1364/oe.19.003185

1094-4087

Elisabet Xifré‐Pérez, David Doménech, Roberto Fenollosa, Pascual Muñoz, J. Capmany, F. Meseguer,

Optical Coatings and Gratings

A coupler based on silicon spherical microcavities coupled to silicon waveguides for telecom wavelengths is presented.The light scattered by the microcavity is detected and analyzed as a function of the wavelength.The transmittance signal through the waveguide is strongly attenuated (up to 25 dB) at wavelengths corresponding to the Mie resonances of the microcavity.The coupling between the microcavity and the waveguide is experimentally demonstrated and theoretically modeled with the help of FDTD calculations.