A novel U-groove distributed feedback (U-DFB) laser structure is reported for the first time. This new U-DFB laser shows threshold current of 34 mA, external total quantum efficiency of 0.4 mW/mA from both facets and side mode suppression ratio of 30 dB.


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    Title :

    U-groove distributed-feedback lasers


    Contributors:

    Conference:

    Laser Diode Technology and Applications II ; 1990 ; Los Angeles,CA,United States


    Published in:

    Publication date :

    1990-05-01





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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