Summary form only given. We report on the improved performance of InGaAs MQW vertical cavity (VCSEL) lasers with tapered oxide apertures positioned 50nm from the quantum wells. A vertical cavity laser with 2 /spl mu/m opening has a threshold of 145 /spl mu/A and an external differential efficiency of 55%. The good slope efficiency combined with low-threshold is made possible by reduced current spreading and low optical scattering losses.


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    Titel :

    Low-threshold, efficient vertical cavity lasers with tapered apertures


    Beteiligte:
    Hegblom, E.R. (Autor:in) / Margalit, N.M. (Autor:in) / Coldren, L.A. (Autor:in)


    Erscheinungsdatum :

    01.01.1998


    Format / Umfang :

    170734 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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