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Spectroscopic Properties of Erbium-doped Bismuth Based Glasses at 1.54 μm
Wu Changgen1,2, Yao Lianzeng*2, Xia Haiping1
1.Laboratory of Photoelectronic Materials, Ningbo University, Ningbo 315211;2.Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026
Abstract:
The bismuth glasses with Er3+ and Er3+/Yb3+ co doped were fabricated by the technique of high temperature melting. The absorption and fluorescence spectra, fluorescence lifetime and FWHM were measured. The explanation of concentration quenching in case of high level Er3+ doped the bismuth glasses is given. The sensitizing of Yb3+ to Er3+ in Er3+/Yb3+ co doped bismuth glasses is discussed. The explanation of the influence on absorption and fluorescence spectra, fluorescence lifetime and FWHM in case of the change of Er3+ or Yb3+ in bismuth glasses with Er3+/Yb3+ co doped is given. It is found that the change of Er3+ content has obviously influenced the fluorescence lifetime and FWHM while the change of Yb3+ content has remarkably influenced the absorption and fluorescence intensity. The band at around 1.54 μm in Er3+/Yb3+ co doped bismuth glass reaches 76 nm and the fluorescence lifetime is 0.55 ms.
Key words:  Bismuth glass, Er3+/Yb3+ co doped, Fluorescence spectra, Broadband
FundProject:
铋酸盐铒玻璃在1.54 μm处的荧光特性研究
吴昌根1,2, 姚连增*2, 夏海平1
1.宁波大学光电子功能材料研究所,宁波,315211;2.中国科学技术大学材料科学与工程系,合肥,230026
摘要:
用高温熔融法制备了Er3+单掺和Er3+/Yb3+共掺铋酸盐玻璃,测量了上述玻璃样品的吸收光谱、荧光光谱、荧光半高宽和荧光寿命.对高浓度掺杂Er3+时的浓度猝灭现象给出了解释.分析了Er3+/Yb3+双掺样品中Yb3+对Er3+的敏化过程.在对Er3+/Yb3+共掺时的研究结果发现, Er3+浓度的变化对荧光半高宽和荧光寿命有显著影响,而Yb3+浓度的变化则对吸收光谱和荧光光谱的强度影响显著.实验获得了Er3+/Yb3+共掺铋酸盐玻璃在1.54 μm处荧光半高宽达76 nm,荧光寿命为0.55 ms.
关键词:  铋酸盐玻璃  Er3+/Yb3+共掺  荧光光谱  宽带
DOI:10.1088/1674-0068/18/2/218-222
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