Low-Threshold and Highly Efficient Gd3+, Lu3+Co-doped KY(WO4)2:Yb3+ Planar Waveguide Lasers

D. Geskus, S. Aravazhi, Edward Bernhardi, C. Grivas, Kerstin Worhoff, Markus Pollnau

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


    Co-doping with optically inert Gd3+ and Lu3+ ions improves refractive-index contrast and light confinement in KY(WO4)2:Yb3+ planar waveguides. Lasing with 18 mW threshold and record-high slope efficiency of 82.3% versus absorbed pump power is demonstrated.
    Original languageUndefined
    Title of host publicationAdvanced solid state photonics (ASSP) Technical digest
    Place of PublicationWashington, DC, USA
    PublisherOptical Society of America
    Number of pages3
    ISBN (Print)978-1-55752-883-4
    Publication statusPublished - 3 Feb 2010
    EventAdvanced Solid-State Photonics, ASSP 2010 - San Diego, United States
    Duration: 31 Jan 20103 Feb 2010

    Publication series

    PublisherOptical Society of America


    ConferenceAdvanced Solid-State Photonics, ASSP 2010
    Abbreviated titleASSP
    Country/TerritoryUnited States
    CitySan Diego


    • IR-71350
    • METIS-275586
    • Lasers
    • ytterbiumWaveguides
    • solid state
    • planarInfrared and far-infrared lasersLaser
    • IOMS-APD: Active Photonic Devices
    • EWI-17871

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