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Slow-light photonic crystal switches and modulators

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dc.contributor.authorBeggs, Daryl M.
dc.contributor.authorWhite, Thomas
dc.contributor.authorKampfrath, Tobias
dc.contributor.authorKuipers, L. (Kobus)
dc.contributor.authorKrauss, Thomas F.
dc.coverage.spatialSan Francisco, CA
dc.date.accessioned2015-12-13T23:00:06Z
dc.date.createdJanuary 24-27 2010
dc.date.issued2010
dc.date.updated2016-02-24T08:41:18Z
dc.description.abstractWe discuss the performance of slow-light enhanced optical switches and modulators fabricated in silicon. The switch is based on photonic crystal waveguides in a directional coupler geometry, and the dispersion of the device is engineered to allow a switching length as short as 5 μm and rerouting of optical signals within 3 ps. The 3 ps switching time is demonstrated using free carriers in the silicon generated by the absorption of a femtosecond pump pulse. The modulator is based on a Mach-Zehnder interferometer configuration, with photonic crystal waveguides in each arm to act as phase-shifters. A flat-band slow-light region has been engineered in the phase-shifters to provide an extinction ratio in excess of 15 dB over the entire 11 nm bandwidth of the modulator device.
dc.identifier.isbn9780819480026
dc.identifier.urihttp://hdl.handle.net/1885/83982
dc.publisherSPIE - The International Society for Optical Engineering
dc.relation.ispartofseriesSilicon Photonics V
dc.sourceProceedings of SPIE - The International Society for Optical Engineering
dc.subjectKeywords: Extinction ratios; Femtosecond pump pulse; Flat band; Free carriers; Optical; Optical signals; Photonic crystal waveguide; Switching time; Directional couplers; Interferometers; Laser optics; Modulation; Optical switches; Optical waveguides; Phase shift; Directional coupler; Interferometer; Modulator; Optical; Photonic crystal; Silicon; Slow-light; Switch
dc.titleSlow-light photonic crystal switches and modulators
dc.typeConference paper
local.bibliographicCitation.lastpage12
local.bibliographicCitation.startpage1
local.contributor.affiliationBeggs, Daryl M., University of St. Andrews
local.contributor.affiliationWhite, Thomas, College of Engineering and Computer Science, ANU
local.contributor.affiliationKampfrath, Tobias, FOM Institute for Atomic and Moledular Physics (AMOLF)
local.contributor.affiliationKuipers, L (Kobus), FOM Institute for Atomic and Molecular Physics (AMOLF)
local.contributor.affiliationKrauss, Thomas F, University of St Andrews
local.contributor.authoruidWhite, Thomas, u4835361
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor020200 - ATOMIC, MOLECULAR, NUCLEAR, PARTICLE AND PLASMA PHYSICS
local.identifier.ariespublicationf5625xPUB12252
local.identifier.doi10.1117/12.840948
local.identifier.scopusID2-s2.0-77951697838
local.type.statusPublished Version

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