| Composition Dependence of Spectroscopic Properties of Er^3＋ Doped TeO2-WO3-ZnO Glasses |
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| 引用本文： | 李家成,李顺光,胡和方,干福熹.Composition Dependence of Spectroscopic Properties of Er^3＋ Doped TeO2-WO3-ZnO Glasses[J].中国物理快报,2004,21(1):176-178. |
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| 作者姓名： | 李家成 李顺光 胡和方 干福熹 |
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| 作者单位： | ShanghaiInstituteofOpticsandFineMechanics,ChineseAcademyofSciences,POBox800-211,Shanghai201800 |
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| 摘 要： | Er^3 -doped TeO2-WO3-ZnO glasses were prepared and the absorption spectra, emission spectra and fluorescence lifetimes were measured. With more Te02 content in the glasses, the emission full width at half maximum (FWHM) increases while the lifetime of the ^4I13/2 level of Er^3 decreases. The stimulated emission cross-sectionof Er^3 calculated by the McCumber theory is as large as 0.86pm^2. The product of the FWHM and the emissioncross-section σe of Er^3 in TeO2-WO3-ZnO glass is larger than those in other glasses, which indicates that the glasses are promising candidates for Er^3 -doped broadband amplifiers. The Judd-Otfelt parameter Ω6 shows close composition dependence of the 1.5μm emission bandwidth. The more the TeO2 content is, the larger thevalues of Ω6 and FWHM.
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| 关 键 词： | 分光性质 铒离子掺杂 氧化碲-氧化钨-氧化锌玻璃 吸收光谱 发射截面 |
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