The modal properties, including the resonant vertical radiation,of a type of laser structures based on the annular Bragg resonance (ABR)are studied in detail. The modal threshold gains and the resonancefrequencies of such lasers are obtained from the derived governingcharacteristic equation. Two kinds of ABR lasers, one with a /2 phase shiftin the outer grating and the other without, are analyzed. It is numericallydemonstrated that, its possible to get a large-area, high-efficiency, singledefect mode lasing in ABR lasers if we choose the kind without a /2 phaseshift in the outer grating and also a device size smaller than a critical value.


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    Title :

    Modal Properties and Modal Control in Vertically Emitting Annular Bragg Lasers


    Contributors:
    X. Sun (author) / A. Yariv (author)

    Publication date :

    2007


    Size :

    11 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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