Slow and fast light effects in semiconductor waveguides for applications in microwave photonics

Weiqi Xue (Invited author), Yaohui Chen (Invited author), Filip Öhman (Invited author), Salvador Sales (Invited author), Jose Capmany (Invited author), Kresten Yvind (Invited author), Jesper Mørk (Invited author)

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    We review the theory of slow and fast light effects due to coherent population oscillations in semiconductor waveguides, and potential applications of these effects in microwave photonic systems as RF phase shifters. In order to satisfy the application requirement of 360º RF phase shift at different microwave or millimeter-wave frequency bands, we present several schemes to increase the achievable RF phase shift by enhancing light slow-down or speed-up. These schemes include integrating gain and absorption sections, optical filtering and the exploitation of the initial chirp effects. As a real application in microwave photonics, a widely tunable microwave photonic notch filter with 100% fractional tuning range is also proposed and demonstrated.
    Original languageEnglish
    Title of host publicationProceedings of the International Society for Optical Engineering SPIE. Photonics West
    Place of PublicationSan Jose, CA, USA
    PublisherSPIE - International Society for Optical Engineering
    Publication date2009
    Pages7226-7232
    Publication statusPublished - 2009
    EventSPIE OPTO: Integrated Optoelectronics Devices 2009 - San Jose, United States
    Duration: 24 Jan 200929 Jan 2009
    Conference number: 7226

    Conference

    ConferenceSPIE OPTO: Integrated Optoelectronics Devices 2009
    Number7226
    Country/TerritoryUnited States
    CitySan Jose
    Period24/01/200929/01/2009

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