Summary form only given. Recently, we have reported novel lasers based on two-dimensional (2D) photonic crystals or 2D periodic structures. Due to the two-dimensionality of such devices, the Bragg diffraction that occurs is multi-directional. Such multi-directional Bragg diffraction can yield coupling mechanisms unattainable using traditional DFB lasers, leading to control of the lasing mode over a large 2D area, which may have various important applications such as high-power lasers or surface-emitting lasers with very narrow divergence angles. We created such a device with a 2D photonic crystal in which we integrated two wafers (A and B) using a wafer-fusion technique. Wafer A has an InGaAsP/InP multiple quantum well active layer (/spl lambda/= 1.3 /spl mu/m) grown on a p-type InP substrate. Wafer B features a square lattice structure on an n-type InP substrate. We have found that the polarization of the laser can be controlled by unit cell structure design.


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    Titel :

    Photonic crystal lasers and related functional devices


    Beteiligte:
    Noda, S. (Autor:in) / Imada, M. (Autor:in)


    Erscheinungsdatum :

    2002-01-01


    Format / Umfang :

    149924 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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