Journal
OPTICS LETTERS
Volume 37, Issue 16, Pages 3408-3410Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.37.003408
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Funding
- National Natural Science Foundation of China (NSFC) [60907039]
- West Light Foundation and Hundreds of Talents Programs from the Chinese Academy of Sciences (CAS), China
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By physical and chemical dehydration techniques, a group of Er3+-doped water-free fluorotellurite glasses with a composition of 60TeO(2)-30ZnF(2)-10NaF(TZNF60, mol%) + xEr(2)O(3)(wt%; x = 0 similar to 1.5) were fabricated. Under 978 nm excitation, the I-4(11/2) -> I-4(13/2) emission of Er3+ ions in TZNF60-glass was investigated: tau(f) is of 1.07 similar to 1.93 ms and emission bandwidth is about 163 nm at 2.71 mu m, which benefits from the absence of OH groups and the decreased phonon energy with the addition of fluorides. In contrast, 1.25Er-TZNF60 glass is proposed to be a promising material for mid-infrared fiber lasers at around 2.7 mu m. (c) 2012 Optical Society of America
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