Spectral properties of erbium-doped heavy metal oxyfluoride silicate glasses for broadband amplification |
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Authors: | Xu Shi-Qing Yang Zhong-Min Dai Shi-Xun Yang Jian-Hu Dai Neng-Li Lin Ao-Xiang Hu Li-Li Jiang Zhong-Hong |
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Affiliation: | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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Abstract: | Erbium-doped glasses showing a wide 1.55μm emission band are reported in a novel heavy metal oxyfluoride glass system SiO_2-PbO-PbF_2 and their optical properties such as emission spectra, fluorescence lifetime and the refractive index have been investigated. The broad and flat {}^4I_{13/2}→{}^4I_{15/2} emission of Er^{3+} ions around 1.55μm can be used as host materials for potential optical amplifiers in wavelength-division-multiplexing network system. We find that with increasing PbF_2 content in the glass composition, the fluorescence full width at half maximum and fluorescence lifetime of the {}^4I_{13/2} level of Er^{3+} increase, while refractive index and density decrease. |
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Keywords: | heavy metal oxyfluoride silicate glasses spectral properties rare earth |
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