Effects of Yb 3+ in Er 3+/Yb 3+ Codoped Fluorophosphate Glasses
LIAO Mei-Song1, FANG Yong-Zheng1, Hu Li-li1, ZHANG Li-Yan2, XU Shi-Qing2
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002College of Information Engineering, China Jiliang University, Hangzhou 310018
Effects of Yb 3+ in Er 3+/Yb 3+ Codoped Fluorophosphate Glasses
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002College of Information Engineering, China Jiliang University, Hangzhou 310018
摘要For the Er3+/Yb3+ codoped fluorophosphate glasses, Judd--Ofelt theory is used to analyse the influence of YbF3 as not a sensitizer but an average component on the spectroscopic properties around 1530\,nm emission. The double roles of Yb3+, as a sensitizer and as an average component, are discussed. It is found that Yb3+ as an average component contributes to the increase of fluorescence lifetime, and Yb3+ as a sensitizer has the best sensitization when its concentration is 2.4mol%.
Abstract：For the Er3+/Yb3+ codoped fluorophosphate glasses, Judd--Ofelt theory is used to analyse the influence of YbF3 as not a sensitizer but an average component on the spectroscopic properties around 1530\,nm emission. The double roles of Yb3+, as a sensitizer and as an average component, are discussed. It is found that Yb3+ as an average component contributes to the increase of fluorescence lifetime, and Yb3+ as a sensitizer has the best sensitization when its concentration is 2.4mol%.
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2007, Vol. 24 
