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Materials 2017, 10(5), 486; doi:10.3390/ma10050486

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

1
Department of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
2
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
Received: 31 March 2017 / Revised: 27 April 2017 / Accepted: 28 April 2017 / Published: 3 May 2017
(This article belongs to the Section Energy Materials)
View Full-Text   |   Download PDF [10751 KB, uploaded 3 May 2017]   |  

Abstract

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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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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