A square-shaped flattop mode was experimentally demonstrated in a broad-area circular-aperture VCSEL using an external-cavity aspheric mirror. The mirror was fabricated by electron-beam lithography on a curved substrate. Excellent single-mode operation was observed.


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    Title :

    Flattop mode shaping of a vertical cavity surface emitting laser using an external-cavity aspheric mirror


    Contributors:
    Yang, Z.H. (author) / Leger, J.R. (author)


    Publication date :

    2004-01-01


    Size :

    234822 byte



    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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