Monoclinic double tungstate waveguide amplifiers and microlasers

Sonia Maria García Blanco, D. Geskus, Koop van Dalfsen, F. Ay, S. Aravazhi, Markus Pollnau

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic


    The rare-earth (RE) ion doped monoclinic potassium double tungstates KY(WO4)2, KGd(WO4)2, and KLu(WO4)2 are emerging as very interesting gain materials for the fabrication of waveguide amplifiers and microlasers for future integrated optical devices. The very large transition cross-sections of RE ions doped into these materials provide large gain per unit length, which, together with the large refractive indices, make these materials very promising for on-chip integrated applications. An overview of the latest advances on waveguide amplifiers and microlasers in potassium double tungstates will be presented including different waveguide microfabrication techniques and various examples of recent applications, such as waveguide amplifiers with extremely high gain (?1000 dB/cm), on-chip waveguide lasers with integrated gratings, and waveguide lasers with high output power (>400 mW), low quantum defect (0.7%), and broad tunability.
    Original languageUndefined
    Title of host publicationInternational Conference on Transparent Optical Networks (ICTON)
    Number of pages4
    ISBN (Print)978-1-4577-0882-4
    Publication statusPublished - 2011
    Event13th International Conference on Transparent Optical Networks, ICTON 2011 - Stockholm, Sweden
    Duration: 26 Jun 201130 Jun 2011
    Conference number: 13

    Publication series

    PublisherIEEE Photonics Society
    ISSN (Print)1094-4087


    Conference13th International Conference on Transparent Optical Networks, ICTON 2011
    Abbreviated titleICTON


    • METIS-285053
    • IR-79492
    • Integrated Optics
    • Rare-earth ions
    • EWI-21374
    • Optical Amplifiers
    • double tungstates
    • liquid phase epitaxy
    • IOMS-APD: Active Photonic Devices
    • channel waveguide microlasers

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