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Evidence of Tm impact in low-photodarkening Yb-doped fibers.
Jetschke, Sylvia; Unger, Sonja; Schwuchow, Anka; Leich, Martin; Fiebrandt, Julia; Jäger, Matthias; Kirchhof, Johannes.
Afiliación
  • Jetschke S; Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany. sylvia.jetschke@ipht-jena.de
Opt Express ; 21(6): 7590-8, 2013 Mar 25.
Article en En | MEDLINE | ID: mdl-23546142
In contrast to Yb/Al-doped fibers, the influence of very low Tm(2)O(3) concentrations (≥ 0.1 mol-ppm) on photodarkening (PD) is clearly detectable in Yb/P-doped fibers that are known to show little degradation effects. For Tm(2)O(3) additions of more than 50 mol-ppm, the measured PD loss is even similar to Yb/Al-doped fibers with comparable rare earth concentrations. Our work reveals the risk of color center generation by pumping at wavelengths of 915 nm or 976 nm even in Al-free Yb-doped fibers and emphasizes the importance of high purity of raw materials for the preparation of Yb laser fibers with expected very low PD.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tulio / Iterbio / Tecnología de Fibra Óptica Idioma: En Revista: Opt Express Asunto de la revista: OFTALMOLOGIA Año: 2013 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tulio / Iterbio / Tecnología de Fibra Óptica Idioma: En Revista: Opt Express Asunto de la revista: OFTALMOLOGIA Año: 2013 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Estados Unidos