We demonstrate a very low threshold 1.55 /spl mu/m grating coupled surface emitting laser (GCSEL) with a CW room temperature threshold of only 6 mA. The laser structure is a multi-quantum well distributed-feedback (DFB) laser with a second order grating buried under the gain medium. The laser is fabricated by following the capped-mesa buried heterostructure (CMBH) process with a stripe width of around 0.9 to 1.2 /spl mu/m wide. We have measured the FWHM of the far field intensity profile of the laser.


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    Titel :

    Emitting far field pattern study of long wavelength grating coupling surface emitting lasers


    Beteiligte:
    Shih, M.H. (Autor:in) / Fan, J.J. (Autor:in) / Gopal, C. (Autor:in) / Choa, F.S. (Autor:in) / Simonis, G.J. (Autor:in) / Tanbun-Ek, T. (Autor:in) / Logan, R.A. (Autor:in) / Tsang, W.T. (Autor:in) / Sergent, A.M. (Autor:in)

    Erschienen in:

    Proceedings of LEOS'94 ; 1 ; 256-257 vol.1


    Erscheinungsdatum :

    01.01.1994


    Format / Umfang :

    169841 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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