We have developed a dual wavelength DFB laser for the generation of a widely tunable microwave signal. In order to obtain a narrow linewidth of the generated signal, we have focused the development of the source on the reduction of the linewidth of each generated wavelengths. The best results were obtained with a device using 2500 μm long DFB sections that generated linewidths narrower than 300 kHz. Beating the two wavelengths from this chip on a photodetector resulted in a beat note having a linewidth of 600 kHz. This microwave signal could be tuned from 3 to 20 GHz with a linewidth kept below 1 MHz.


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    Titel :

    Monolithic dual wavelength DFB lasers for narrow linewidth heterodyne beat-note generation


    Beteiligte:
    van Dijk, F. (Autor:in) / Accard, A. (Autor:in) / Enard, A. (Autor:in) / Drisse, O. (Autor:in) / Make, D. (Autor:in) / Lelarge, F. (Autor:in)


    Erscheinungsdatum :

    01.10.2011


    Format / Umfang :

    1148342 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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