There is a trade-off between the low threshold gain and large fabrication tolerance. Among the grating structures studied, the double grating structure consisting of the absorptive grating on the index grating has the largest fabrication tolerance of the threshold gain and the coupling strength. The fabrication tolerance of coupling ratio is very large for all grating structures studied.


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    Title :

    Optimization of grating structures in complex-coupled MQW DFB lasers with absorptive gratings


    Contributors:


    Publication date :

    1999-01-01


    Size :

    187837 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English