We report on the fabrication of 980 nm InGaAs-AlGaAs lasers with a specially designed cladding structure. For a 2.5 /spl mu/m wide ridge waveguide structure, the far field pattern has a vertical divergence of only 13/spl deg/ and a lateral divergence of 8/spl deg/. Meanwhile, the threshold current can remain acceptably low. In addition, with another design, a record small vertical far field angle of 11/spl deg/ was obtained.


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    Titel :

    980 nm InGaAs/AlGaAs quantum well lasers with extremely low beam divergence


    Beteiligte:
    Shun-Tung Yen (Autor:in) / Gray Lin (Autor:in) / Der-Cherng Liu (Autor:in) / Chia-Ming Tsai (Autor:in) / Chien-Ping Lee (Autor:in)


    Erscheinungsdatum :

    01.01.1996


    Format / Umfang :

    165378 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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