Commercial applications of vertical-cavity surface-emitting lasers (VCSEL) are beginning to show up owing to rapid improvement of the VCSEL major characteristics. Nevertheless, polarization sensitive applications such as the magneto-optic disk or coherence detection are restricted, because VCSELs have no preference for a specific polarization. We propose and demonstrate a simple and novel polarization control scheme which uses an asymmetric Al-oxide aperture. This polarization control mechanism is based on the expectation that the scattering losses along two orthogonal polarization directions are not exactly the same when electromagnetic waves pass through a narrow dielectric slit.


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    Title :

    Polarization control of vertical-cavity surface-emitting lasers by asymmetric oxide-aperture


    Contributors:


    Publication date :

    1999-01-01


    Size :

    190526 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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