We demonstrate efficient intracavity nonlinear interaction of laser modes in quantum cascade (QC) lasers with resonant nonlinear optical intersubband transitions. Sum-frequency and second-harmonic generation at 4.1 and 3.6 and 4.7 /spl mu/m wavelength has been demonstrated for a two-wavelength QC laser emitting at the fundamental wavelengths 7.1 and 9.5 /spl mu/m. In a structure optimized for second harmonic generation, we measure 1.5 /spl mu/W of nonlinear power at 3.7 /spl mu/m wavelength together with 930 mW of fundamental power at 7.5 /spl mu/m wavelength. The experimental results are in very good agreement with the calculations.


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    Titel :

    Generation of light through second-order nonlinear processes in quantum cascade lasers


    Beteiligte:
    Gmachl, C. (Autor:in) / Belyanin, A. (Autor:in) / Owschimikow, N. (Autor:in) / Kocharovsky, V. (Autor:in) / Capasso, F. (Autor:in) / Sivco, D.L. (Autor:in) / Peadbody, M.L. (Autor:in) / Sergent, A.M. (Autor:in) / Cho, A.Y. (Autor:in)


    Erscheinungsdatum :

    01.01.2003


    Format / Umfang :

    225508 byte



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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