We have demonstrated fully-epitaxial, room-temperature, electrically-pumped VCSELs based on III-As compounds with low threshold current density, very high differential efficiency and low threshold voltage by employing multiple-active-regions in a single cavity. Even higher differential efficiencies should be possible with optimized cavity designs. The high differential efficiency and high output powers makes these VCSELs good candidates for low-noise, high-efficiency microwave links. Also, when integrated with a series connected detector, analog repeaters, amplifying wavelength converters, and lossless signal tapping are possible.


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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 :

    200056 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English






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