High power two-micron fibre lasers

William A. Clarkson, A. Abdolvand, D. Y. Shen, R. A. Hayward, L. J. Cooper, R. B. Williams, J. Nilsson

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

    1 Citation (Scopus)

    Abstract

    A double-clad thulium-doped silica fibre laser, pumped by two beam-shaped diode-bars operating at 787-790nm, has yielded 14W of single-mode output at similar to2mum, with a slope efficiency with respect to launched power of 46%. Using a tunable laser configuration, comprising an external cavity with a diffraction grating, a maximum output power of 10.5W at 1921nm has been obtained, and wavelength tuning at multi-watt power levels over 215nm from 1855 to 2070nm has been demonstrated. The prospects for further improvement in performance will be discussed. In addition, a simple approach for further scaling of power levels from fibre lasers in the two-micron regime, based on intracavity wavelength combining of multiple fibre lasers is described. In a preliminary demonstration, four cladding-pumped thulium-doped silica fibre lasers are wavelength-combined yielding an output power >14W. The prospects for further increase in output power via this approach will be discussed.

    Original languageEnglish
    Title of host publicationXIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
    EditorsKrzysztof M. Abramski, Edward F. Plinski, Wieslaw Wolinski
    Place of PublicationBellingham
    PublisherSPIE-International Society for Optical Engineering
    Pages482-489
    Number of pages8
    ISBN (Print)0819449806
    DOIs
    Publication statusPublished - 2003
    EventXIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers - Wroclaw, Poland
    Duration: 25 Aug 200230 Aug 2002

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume5120

    Conference

    ConferenceXIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
    CountryPoland
    CityWroclaw
    Period25/08/0230/08/02

    Research Output

    • 1 Citations
    • 1 Paper

    High power two-micron fibre lasers

    Clarkson, W. A., Abdolvand, A., Shen, D. Y., Hayward, R. A., Cooper, L. J., Williams, R. B. & Nilsson, J., 2002.

    Research output: Contribution to conferencePaper

    Activities

    • 1 Participation in conference

    XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers

    Amin Abdolvand (Participant)

    25 Aug 200230 Aug 2002

    Activity: Participating in or organising an event typesParticipation in conference

    Cite this

    Clarkson, W. A., Abdolvand, A., Shen, D. Y., Hayward, R. A., Cooper, L. J., Williams, R. B., & Nilsson, J. (2003). High power two-micron fibre lasers. In K. M. Abramski, E. F. Plinski, & W. Wolinski (Eds.), XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers (pp. 482-489). (Proceedings of SPIE; Vol. 5120). SPIE-International Society for Optical Engineering. https://doi.org/10.1117/12.515806