AlGaAs-based vertical-external-cavity surface-emitting laser exceeding 4 W of direct emission power in the 740–790 nm spectral range

Hermann Kahle, Kostiantyn Nechay, Jussi-Pekka Penttinen, Antti Tukiainen, Sanna Ranta, Mircea Guina

    Research output: Contribution to journalArticleScientificpeer-review

    19 Citations (Scopus)

    Abstract

    An optically pumped vertical-external-cavity surface-emitting laser (VECSEL) for direct emission in the 740–790 nm wavelength region is reported. The gain structure is based on 12 AlGaAs quantum wells. We demonstrate wavelength tuning between 747 nm and 788 nm and free-running operation with a maximum power of 4.24 W (pump power limited) for a heat sink temperature of 14°C. This laser system addresses a spectral gap not currently covered by VECSEL technology and represents the most powerful VECSEL reported within the 7XX-nm wavelength region.

    Original languageEnglish
    Pages (from-to)1578-1581
    Number of pages4
    JournalOptics Letters
    Volume43
    Issue number7
    DOIs
    Publication statusPublished - 1 Apr 2018
    Publication typeA1 Journal article-refereed

    Funding

    QUBIT, Academy of Finland (278338). Acknowledgment. The authors highly appreciate the assistance in MBE growth by Patrik Rajala.

    Publication forum classification

    • Publication forum level 2

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

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