Rare-earth ions doped heavy metal germanium tellurite glasses for fiber lighting in minimally invasive surgery

D. L. Yang, H. Gong, E. Y B Pun, X. Zhao, H. Lin

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

41 Citations (Scopus)

Abstract

In Er3+/Yb3+ codoped Na2O-ZnO-PbO-GeO 2-TeO2 (NZPGT) glass fiber, a clear and compact green upconversion amplified spontaneous emission (ASE) trace is observed, and the NZPGT glasses are proved to be a desirable candidate in fabricating low-phonon energy fiber. Intense green upconversion luminescence of Er3+, balanced green and red upconversion emissions of Ho3+, and dominant three-photon blue upconversion fluorescence of Tm3+ have been represented. By varying the excitation power of 974nm wavelength laser diode, a series of green and white fluorescences have been achieved in Tm 3+/Er3+/Yb3+ and Tm3+/Ho 3+/Yb3+ triply doped glass systems, respectively. These results reveal that high-intensity blue, green, and white upconversion ASE fluorescences, which can be adopted for lighting in minimally invasive photodynamic therapy and minimally invasive surgery, are reasonable to be expected in rare-earth doped NZPGT glass fibers. © 2010 Optical Society of America.
Original languageEnglish
Pages (from-to)18997-19008
JournalOptics Express
Volume18
Issue number18
DOIs
Publication statusPublished - 30 Aug 2010

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