Numerical observations of negative group velocity in a two-port ring-resonator circuit and its potential for sensing applications

H.P. Uranus, Hugo Hoekstra

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    Abstract

    A two-port ring-resonator circuit is studied theoretically. It is shown that superluminal and negative group velocity (vg) phenomena can occur in both a passive two-port ring-resonator circuit with loss and an active one with gain. We present numerical observations of temporal behavior of a Gaussian pulse passing through circuits having such properties. We also show that when the negative vg is ‘slow’ (|vg|<<c), there is enhanced sensitivity of the phase shift to the ring effective index changes, which suggests its potential for highly sensitive optical sensing applications.
    Original languageUndefined
    Title of host publication11th Annual Symposium IEEE/LEOS Benelux
    EditorsA.M.J. Koonen, X.J.M. Leijtens, H.P.A. van den Boom
    Place of PublicationEindhoven
    PublisherIEEE LEOS Society
    Pages93-96
    Number of pages4
    ISBN (Print)90-6144-989-8
    Publication statusPublished - Dec 2006
    Event11th Annual Symposium IEEE/LEOS Benelux Chapter 2006 - Eindhoven, The Netherlands, Eindhoven, Netherlands
    Duration: 30 Nov 20061 Dec 2006
    Conference number: 11

    Publication series

    Name
    PublisherIEEE/LEOS Society
    Numbersuppl 2

    Conference

    Conference11th Annual Symposium IEEE/LEOS Benelux Chapter 2006
    CountryNetherlands
    CityEindhoven
    Period30/11/061/12/06

    Keywords

    • EWI-8637
    • IOMS-SNS: SENSORS
    • METIS-237811
    • IR-66744

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