We present all-monolithic, single-step grown, room-temperature, electrically-pumped vertical cavity lasers at 1.55 /spl mu/m based on III-As compounds, with threshold current density of 570A/cm/sup 2/, differential quantum efficiency greater than 50% and threshold voltage of 3V. We employed three active regions, epitaxially stacked in series with Esaki-junctions to increase the gain and the differential efficiency.


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    Title :

    Room-temperature, electrically-pumped, multiple-active-region VCSELs with high differential efficiency at 1.55 /spl mu/m


    Contributors:
    Kim, J.K. (author) / Hall, E. (author) / Sjolund, O. (author) / Coldren, L.A. (author)


    Publication date :

    1999-01-01


    Size :

    150874 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English






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