Enhancement of upconversion intensity in Er3+ doped tellurite glass in presence of Yb3+

ArticleinApplied Physics B 104(1):233-236 · July 2011with11 Reads
Impact Factor: 1.86 · DOI: 10.1007/s00340-011-4422-6

    Abstract

    TeO2-PbO glasses doped/codoped with Er3+/Er 3+-Yb3+ ions have been fabricated by melting and quenching method. Efficient frequency upconversion emissions spanning from blue to red regions corresponding to the 2H11/2, 4S 3/2→4I15/2 and 4F 9/2→4I15/2 transitions, respectively, upon excitation with 976 nm diode laser radiation have been observed. The variations observed in the intensity of whole upconversion emission spectra due to the presence of the Yb3+ ions are reported and discussed in detail.