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  • Integrated Photonics Research, Silicon and Nanophotonics and Photonics in Switching
  • OSA Technical Digest (CD) (Optica Publishing Group, 2010),
  • paper IWA7
  • https://doi.org/10.1364/IPRSN.2010.IWA7

Broad Tuning of Whispering-Gallery Modes in Microdisks

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Abstract

Silicon microdisks with dynamically-tunable resonance spectra are achieved with narrow, in-plane silicon electrical contacts in a single lithographic step. Electrical current is passed through the devices to enable thermal tuning via joule heating. A 14nm wavelength shift is demonstrated with 1.6mW power consumption in devices with >20nm free spectral ranges and quality factors exceeding 20,000. Spectral shifts of several modal linewidths can be achieved with tuning powers below 100µW.

© 2010 Optical Society of America

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