Fiber Bragg grating (FBG) stabilized 980 nm LD pump laser modules are key components for erbium-doped fiber amplifier systems (EDFAs). For EDFA designers it is important to understand the effects of varying effective feedback on the pump laser properties. We present a new model, based on an extension of the well-known traveling-wave amplifier model that allows us to calculate polarization-dependent contributions to the power from fiber, back-facet power, and fiber coupling losses. Both TE- and TM-polarized fractions of the light fed back into the laser cavity are fully taken into account. The model is experimentally verified using the set-up and method As an important result, we find that for a given FBG reflectivity both the threshold current and the back-facet power strongly depend on the effective feedback level, whereas the power from fiber is much less affected.


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    Titel :

    Polarization effects in wavelength-stabilized pump laser modules


    Beteiligte:
    Matuschek, N. (Autor:in) / Pliska, T. (Autor:in) / Sverdlov, B. (Autor:in) / Mohrdiek, S. (Autor:in) / Schmidt, B. (Autor:in) / Harder, C. (Autor:in)


    Erscheinungsdatum :

    2002-01-01


    Format / Umfang :

    161013 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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