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Efficient photonic crystal cavity-waveguide couplers

By Andrei Faraon, Edo Waks, Dirk Englund, Ilya Fushman and Jelena Vučković

Abstract

Coupling of photonic crystal (PC) linear three-hole defect cavities to PC waveguides is theoretically and experimentally investigated. The systems are designed to increase the overlap between the evanescent cavity field and the waveguide mode and to operate in the linear dispersion region of the waveguide. The simulations indicate increased coupling when the cavity is tilted by 60° with respect to the waveguide axis, which was also confirmed by experiments. Up to 90% coupling efficiency into the waveguide was obtained

Publisher: American Institute of Physics
Year: 2007
OAI identifier: oai:authors.library.caltech.edu:34112
Provided by: Caltech Authors

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