Thulium channel waveguide laser in a monoclinic double tungstate with 70% slope efficiency

K. van Dalfsen, S. Aravazhi, C. Grivas, S.M. García Blanco, M. Pollnau

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    48 Citations (Scopus)
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    Abstract

    Laser experiments were performed on buried, ridge-type channel waveguides in an 8 at. % thulium-doped, yttrium-gadolinium-lutetium codoped monoclinic double tungstate. A maximum slope efficiency of 70% and output powers up to 300 mW about 2.0 μm were obtained in a mirrorless laser resonator, by pumping with a Ti:sapphire laser near 800 nm. To the best of our knowledge, this result represents the most efficient 2 μm channel waveguide laser to date. Lasing is obtained at various wavelengths between 1810 nm and 2037 nm.
    Original languageEnglish
    Pages (from-to)887-889
    Number of pages3
    JournalOptics letters
    Volume37
    Issue number5
    DOIs
    Publication statusPublished - 1 Mar 2012

    Keywords

    • IOMS-APD: Active Photonic Devices
    • Waveguides
    • Thin film devices and applications
    • Channeled
    • Infrared and far-infrared lasers
    • Integrated optics materials

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