High multimode CW powers have been achieved from vertical-cavity surface-emitting laser diodes (VCSEL's). However, due to the problems of thermal lensing and spatial hole burning, single mode powers have been limited to several mW. We show experimentally and with a simple model that, in weakly index guided VCSEL's, self focusing causes the fundamental mode width to decrease with increasing power in the mode, resulting in a rapid transition to multimode operation and limiting the maximum single fundamental mode power.<>


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    Titel :

    Self focusing in vertical-cavity surface-emitting laser diodes


    Beteiligte:
    Wilson, G.C. (Autor:in) / Kuchta, D.M. (Autor:in) / Walker, J.D. (Autor:in) / Smith, J.S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.1993


    Format / Umfang :

    173165 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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