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Opt Express. 2007 Jul 23;15(15):9194-204.

Electrically reconfigurable silicon microring resonator-based filter with waveguide-coupled feedback.

Abstract

We demonstrate an electrically reconfigurable silicon microring resonator-based filter with waveguide-coupled feedback. Our experiments and scattering-matrix-based modeling show that the resonance wavelengths, extinction ratios, and line shapes depend on the feedback coupling and can be controllably tuned by means of carrier injection to the feedback- waveguide. We also demonstrate nearly uniform resonance line shapes over multiple free-spectral ranges by nearly phase-matching the feedback and the microring.

PMID:
19547261
[PubMed]
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