Single-mode operation of vertical-cavity surface-emitting lasers is difficult to achieve over a wide dynamic range. Several techniques have been used in the past with various degrees of success to suppress oscillation in higher order modes. This includes oxide-confined structures, anti-guided structures, etched surface-relief structures and external-cavity spatially filtered structures. In an earlier paper, we demonstrated a shadow-masked MOCVD technique for growing curved Bragg mirror stacks. This was proposed as a possible technique for enhancing the single-mode properties of oxide-confined VCSELs. In this paper, we present numerical simulation results to demonstrate the effectiveness of this technique.


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    Title :

    Enhancement of lateral mode confinement in VCSELs using curved Bragg mirrors


    Contributors:
    Sarangan, A.M. (author) / Kwon, O.H. (author) / Peake, G.M. (author)


    Publication date :

    2001-01-01


    Size :

    176838 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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