Abstract The effect of the lead or erbium co-doping upon the spectroscopic properties has been systematically investigated through the analysis of the absorption and emission spectra of Bi doped fibre (BDF), Bi/Pb and Bi/Er co-doped fibre (BPDF and BEDF). All these BDFs have a broadband emission from 1000 nm to 1600 nm. The Pb or Er co-doping in BDFs will evidently reduce the formation of bismuth related active centres (BACs) due to the formation of other types’ centres and then restrain the emission of BAC through their competition of the pump consumption and the cross energy transfer among these active centres. Further analysis indicates that the Pb co-doping effect to restrain the formation of BAC and its emission is stronger than that of Er to some degree, possibly due to the analogy property between Bin+ and Pbn+ with isoelectronic configures. In addition, the analysis of the BAC concentration indicates that the atom concentration measured by energy dispersive X-ray (EDX) analyser has a large gap with the effective content reflected from the absorption and emission. All these results point out a way to design and fabricate bismuth doped/co-doped fibre with high performance in future.

中文翻译：

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铅或铒的共掺杂对掺铋光纤光谱特性的影响

摘要 通过对 Bi 掺杂光纤 (BDF)、Bi/Pb 和 Bi/Er 共掺杂光纤 (BPDF 和 BPDF) 的吸收和发射光谱的分析，系统地研究了铅或铒共掺杂对光谱性能的影响。 BEDF）。所有这些 BDF 都具有从 1000 nm 到 1600 nm 的宽带发射。BDFs中的Pb或Er共掺杂将明显减少由于其他类型中心的形成而导致的铋相关活性中心（BACs）的形成，然后通过它们的泵耗和交叉能量转移的竞争来抑制BAC的排放在这些活跃的中心。进一步分析表明，Pb 共掺杂抑制 BAC 形成及其发射的作用在一定程度上强于 Er，可能是由于 Bin+ 和 Pbn+ 之间具有等电子配置的类比特性。此外，对BAC浓度的分析表明，能量色散X射线（EDX）分析仪测得的原子浓度与吸收和发射反映的有效含量存在较大差距。所有这些结果都为未来设计和制造高性能铋掺杂/共掺杂光纤提供了一种方法。