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Open AccessArticle

Spectral Properties of Er3+/Tm3+ Co-Doped ZBLAN Glasses and Fibers

Department of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Author to whom correspondence should be addressed.
Academic Editor: Wolfgang Linert
Materials 2017, 10(5), 486;
Received: 31 March 2017 / Revised: 27 April 2017 / Accepted: 28 April 2017 / Published: 3 May 2017
(This article belongs to the Section Energy Materials)
A series of Er3+/Tm3+ co-doped fluoride (ZBLAN) glasses and fibers was prepared and their fluorescence spectra was measured under excitation at 793 nm and 980 nm. Correlation between the self-absorption effect of rare-earth ions and the shift of the emission peak was investigated. With the increasing length of fiber, the emission peaks red-shift when self-absorption occurs at the upper level of emission transition or blue-shift when that occurs at the lower level. As a result of the strong self-absorption effect, Er3+/Tm3+ co-doped fibers mainly yield 1390–1470, 1850–1980, and 2625–2750 nm emissions when excited at 793 nm, and 1480–1580, 1800–1980, and 2625–2750 nm emissions when excited at 980 nm. Further, a broadband emission in the range of 1410–1580 nm covering the S + C communication band was obtained by the dual-pumping scheme of 793 nm and 980 nm. Results suggest that the dual-pumping scheme would be more effective and important for an Er3+/Tm3+ co-doped fiber amplifier working in the S + C communication band. View Full-Text
Keywords: Er3+/Tm3+; broadband; ZBLAN; fluoride fiber Er3+/Tm3+; broadband; ZBLAN; fluoride fiber
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MDPI and ACS Style

Liao, X.; Jiang, X.; Yang, Q.; Wang, L.; Chen, D. Spectral Properties of Er3+/Tm3+ Co-Doped ZBLAN Glasses and Fibers. Materials 2017, 10, 486.

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