Abstract The re-absorption loss in quantum dot optical fibers (QD-OFs) affects the fiber emission and limits the device performance. This is not only related to fiber parameters (fiber length and diameter, QD concentration, etc.), but also depends on the properties of doped materials to a large extent. Therefore, the emission of QD-OFs for two different QD materials (PbSe and CuInS2/ZnS) were theoretically simulated using rate equations and power propagation equations, considering the influence of fluorescence lifetime, absorption and emission cross-section (AECS), Stokes-shift, and full width at half-maximum (FWHM). The parameters that had the greatest influence on emission intensity were the fluorescence lifetime for PbSe QD-OFs and the Stokes-shift for CuInS2/ZnS QD-OFs, when the fibers were relatively long. AECS showed more important in shorter OFs. FWHM had the least influence on emission intensity for any length of fiber. The fluorescence lifetime was more advantageous for the stability of the emission wavelength. Compared with CuInS2/ZnS QD-OFs, the emission intensity of PbSe QD-OFs was lower, which however changed more rapidly with these parameters.

中文翻译：

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掺杂材料特性对量子点光纤发射的影响

摘要 量子点光纤（QD-OFs）的重吸收损耗会影响光纤发射并限制器件性能。这不仅与光纤参数（光纤长度和直径、QD浓度等）有关，而且很大程度上取决于掺杂材料的特性。因此，考虑到荧光寿命、吸收和发射截面 (AECS)、Stokes-移位和半高全宽 (FWHM)。当光纤相对较长时，对发射强度影响最大的参数是 PbSe QD-OFs 的荧光寿命和 CuInS2/ZnS QD-OFs 的斯托克斯位移。AECS 在较短的 OF 中表现得更重要。对于任何长度的光纤，FWHM 对发射强度的影响最小。荧光寿命更有利于发射波长的稳定性。与 CuInS2/ZnS QD-OFs 相比，PbSe QD-OFs 的发射强度较低，但随着这些参数变化更快。