Efficient channel waveguide lasers in monoclinic double tungstates: towards further integration with on-chip mirrors

Koop van Dalfsen, Hendricus A.G.M. van Wolferen, Mindert Dijkstra, S. Aravazhi, Edward Bernhardi, Sonia Maria García Blanco, Markus Pollnau

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

    Abstract

    By varying the thulium concentration in the range of 1.5 – 8.0 at.% in thulium- gadolinium-lutetium-yttrium-co-doped monoclinic double tungstate channel waveguides, a maximum laser slope efficiency of 70% with respect to the absorbed pump power was obtained. Further integration of these channel waveguides with on- chip mirrors will combine high slope efficiencies and output powers with narrow-line spectral laser characteristics. A silicon nitride layer was deposited onto a planar thulium-co-doped monoclinic double tungstate layer, and subsequently covered by a metal mask. Strip-loaded, corrugated channel waveguides defined by electron-beam lithography were etched into the silicon nitride layer by means of reactive ion etching.
    Original languageUndefined
    Title of host publication17th Annual Symposium of the IEEE Photonics Benelux Chapter
    Place of PublicationMons, Belgium
    PublisherFaculty of Engineering, University of Mons
    Pages97-100
    Number of pages4
    ISBN (Print)978-2-8052-0184-4
    Publication statusPublished - 29 Nov 2012
    Event17th Annual Symposium of the IEEE Photonics Benelux Chapter 2012 - Mons, Belgium
    Duration: 29 Nov 201230 Nov 2012
    Conference number: 17
    http://www.telecom.fpms.ac.be/IPS_symposium2012/

    Publication series

    Name
    PublisherFaculty of Engineering, University of Mons

    Conference

    Conference17th Annual Symposium of the IEEE Photonics Benelux Chapter 2012
    CountryBelgium
    CityMons
    Period29/11/1230/11/12
    Internet address

    Keywords

    • IOMS-APD: Active Photonic Devices
    • IR-83532
    • METIS-293249
    • EWI-22692

    Cite this

    van Dalfsen, K., van Wolferen, H. A. G. M., Dijkstra, M., Aravazhi, S., Bernhardi, E., García Blanco, S. M., & Pollnau, M. (2012). Efficient channel waveguide lasers in monoclinic double tungstates: towards further integration with on-chip mirrors. In 17th Annual Symposium of the IEEE Photonics Benelux Chapter (pp. 97-100). Mons, Belgium: Faculty of Engineering, University of Mons.