The influence of F−-ion doping on the fluorescence (4I13/2 → 4I15/2) line shape broadening in Er3+-doped oxyfluoride silicate glasses
The influence of F−-ion doping on the fluorescence (4I13/2 → 4I15/2) line shape broadening in Er3+-doped oxyfluoride silicate glasses
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DOI：
10.1016/j.optmat.2003.08.006
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发表时间：
2004-04
影响因子：
3.9
通讯作者：
S. Shen;A. Jha
中科院分区：
文献类型：
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作者：
S. Shen;A. Jha
在硅酸盐玻璃中掺杂氟对于增强目前用于电信网络的稀土离子掺杂器件的光谱特性特别感兴趣。这种玻璃主机结合了硅酸盐和氟化物玻璃的结构特性，提供了一系列的结构网站的Er-离子，这是必不可少的设计平面和光纤放大器具有高Er-离子的溶解度。本文报道了一系列氟改性硅酸盐玻璃，并对它们的光谱和物理性质进行了比较。在文献中硅酸盐结构模型的基础上，分析了F-、Al ~（3+）离子和GeO_2、P_2O_5、B_2O_3等网络形成剂的掺入对Er ~（3+）离子4 I ~（13/2）→ 4 I ~（15/2）跃迁谱线展宽的影响。Er-离子在氧氟硅酸盐主机的大溶解度的结构方面也进行了讨论，通过与文献中的数据进行比较。我们还报告了一个不寻常的浓度猝灭特性的氧氟硅酸盐玻璃，这是重要的放大器和激光器的设计，是未知的文献。根据氟氧化物玻璃的光谱特性，比较了用于放大器设计的优值（FOM），并讨论了玻璃中F/O比与器件光谱特性的关系。
The doping of fluorine in silicate glasses is of particular interest for enhancing the spectroscopic properties of rare-earth ion doped devices currently used in telecommunication networks. This glass host combines the structural properties of both silicate and fluoride glasses by providing a range of structural sites for Er-ions, which are essential for designing planar and fibre amplifiers with high Er-ion solubility. In this investigation a series of fluorine modified silicate glasses are reported and their measured spectroscopic and physical properties are compared. On the basis of structural models of silicates known in the literature, the effects of the incorporation of F−, Al3+ions and network formers such as GeO2, P2O5, and B2O3on the broadening of emission line shape for the4I13/2→4I15/2transition of Er-ion are analysed. Structural aspects of large solubility for Er-ions in the oxyfluoride silicate hosts are also discussed by making comparison with the data available in the literature. We also report an unusual concentration quenching characteristics in oxyfluoride silicate glasses, which is important for amplifier and laser design and are not known in the literature. Based on the spectroscopic properties of oxyfluoride glasses, the figures-of-merit (FOM) for amplifier design are compared and the relationships with the F/O ratio in the glass and spectroscopic properties of the device are also discussed.