| Broadband 1.5-um emission of erbium-doped TeO_2-WO_3-Nb_2O_5 glass for potential WDM amplifier |
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| 作者姓名： | 徐时清 戴世勋 张军杰 胡丽丽 姜中宏 |
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| 作者单位： | Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800 |
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| 基金项目： | This work was supported by the Project oftheNational NNatural Science Foundation of China(No.60207006) and Optical Science and Technology of Shanghai(No022261046). |
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| 摘 要： | Erbium-doped glass showing the wider 1.5-um emission band is reported in a novel oxide system TeO2-WO3-Nb2O5 and their thermal stability and optical properties such as absorption, emission spectra, cross-sections and fluorescence lifetime were investigated. Compared with other glass hosts, the gain bandwidth properties of Er3+ in TWN glass is close to that of bismuth glasses, and larger than those of tellurite, germanate, silicate and phosphate glasses. The broad and flat 4I13/2-4I15/2 emission and the large stimulated emission cross-section of Er3+ ions around 1.5um can be used as host material for potential broadband optical amplifier in the wavelength-division-multiplexing (WDM) network system.
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