High-power quantum-dot-based semiconductor disk laser

M. Butkus, K. G. Wilcox, J. Rautiainen, O. G. Okhotnikov, S. S. Mikhrin, I. L. Krestnikov, A. R. Kovsh, M. Hoffmann, T. Suedmeyer, U. Keller, E. U. Rafailov

    Research output: Contribution to journalArticlepeer-review

    34 Citations (Scopus)


    We demonstrate multiwatt cw output power from an optically pumped quantum-dot semiconductor disk laser. Continuous-wave output power of 4.35 W with 22% slope efficiency was demonstrated at a center wavelength of 1032 nm. This represents an increase in power of 15 times and an increase in slope efficiency of 10 times from the previously published results using Stranski-Krastanow grown quantum dots. An intracavity diamond heat spreader was used for thermal management. The maximum output power was limited by the available pump power, and no sign of thermal rollover was observed. (C) 2009 Optical Society of America

    Original languageEnglish
    Pages (from-to)1672-1674
    Number of pages3
    JournalOptics Letters
    Issue number11
    Publication statusPublished - 1 Jun 2009




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