We report on an ytterbium-doped photonic crystal fiber with a core diameter of 60 µm and mode-field-area of about 2000 µm2 of the emitted fundamental mode. Together with the short absorption length of 0.5 m this fiber possesses a record low nonlinearity which makes this fiber predestinated for the amplification of short laser pulses to very high peak powers. In a first continuous-wave experiment a power of 320 W has been extracted corresponding to 550 W per meter. To our knowledge this represents the highest power per unit length ever reported for fiber lasers. Furthermore, the robust single-transverse-mode propagation in a passive 100 µm core fiber with a similar design reveals the potential of extended large-mode-area photonic crystal fibers.


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    Titel :

    Extended single-mode photonic crystal fiber lasers


    Beteiligte:
    Limpert, J. (Autor:in) / Schmidt, O. (Autor:in) / Rothhardt, J. (Autor:in) / Röser, F. (Autor:in) / Schreiber, T. (Autor:in) / Tünnermann, A. (Autor:in) / Ermeneux, S. (Autor:in) / Yvernault, P. (Autor:in) / Salin, F. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2006


    Format / Umfang :

    6 pages



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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