A large stimulated emission cross section and a low nonradiative relaxation rate can be expected from tellurite glasses. This makes tellurite glasses extremely attractive as high quantum efficiency host materials for rare earth ions. Nd/sup 3+/ doped tellurite singlemode fiber laser and an Er/sup 3+/ doped tellurite singlemode fiber laser oscillation and amplification have recently been demonstrated. The signal-gain characteristics of tellurite-based Er/sup 3+/ doped fiber amplifiers are clarified based on spectroscopic properties and signal-gain measurements. In this paper, the Judd-Ofelt parameters have been computed from the intensities of various absorption bands of Pr/sup 3+/ doped tellurite glasses, and the Judd-Ofelt theory has been applied to characterise the photoluminescence spectra of these glasses.


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    Titel :

    Tellurite glasses for 1.3 /spl mu/m optical amplifiers


    Beteiligte:
    Man, S.Q. (Autor:in) / Liu, H.W. (Autor:in) / Wong, Y.H. (Autor:in) / Pun, E.Y.B. (Autor:in) / Chung, P.S. (Autor:in)


    Erscheinungsdatum :

    01.01.1998


    Format / Umfang :

    150444 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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