Giant optical gain in rare-earth-ion-doped thin films and waveguides

D. Geskus, S. Aravazhi, Sonia Maria García Blanco, Markus Pollnau

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


    In a rare-earth-ion-doped double tungstate channel waveguide amplifier, we demonstrate an ultra-high modal gain of 950 dB/cm, two order of magnitude higher than in other rare-earth-ion-doped materials and comparable to modal gain in semiconductors.
    Original languageUndefined
    Title of host publicationInternational Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim
    Place of PublicationSydney
    PublisherAustralian Optical Society
    PagesPaper 4630
    Number of pages3
    ISBN (Print)978-0-9775657-7-1
    Publication statusPublished - Aug 2011

    Publication series

    NameConference Handbook
    PublisherAustralian Optical Society


    • METIS-278780
    • EWI-20477
    • IOMS-APD: Active Photonic Devices
    • IR-77971

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