在S和近c波段工作的掺铥光纤放大器的传输损耗和非线性对调制不稳定性的影响

Mansoor Khan, R. Sonkar
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引用次数: 1

摘要

本文研究了在$\mathbf{S}$和近c波段工作的掺铥光纤放大器(TDFA)中损耗因子对调制不稳定性(MI)的影响。基于导出的解析模型,观察了最大信号增益相对于扰动频率的相对变化,并与无损tdfa进行了比较。在小信号衰减系数为0.01 /m时,小信号衰减0.36,频移1.44 THz。因此,在输入信号功率为250 mW时,信号增益降低了45 dB。在相同的参数下,研究了非线性和损耗因子的影响,并与目前最先进的掺铒光纤放大器(EDFA)进行了比较。所得结果可用于在微扰现象下选择最佳微扰频率,用于设计基于TDFAs的微扰激光器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Propagation Loss and Non-linear effects on Modulation Instability in Thulium Doped Fiber Amplifiers operating in S and near-C bands
This paper presents the loss factor effect on the behaviour of Modulation Instability (MI) in Thulium Doped Fiber Amplifier (TDFA) operational in $\mathbf{S}$ and near-C bands. Based on the derived analytical model, the relative change in maximum signal gain with respect to perturbation frequency was observed and compared to lossless TDFAs. At a smallsignal attenuation coefficient of 0.01 /m corresponding to smallsignal attenuation of 0.36 frequency shift of 1.44 THz was observed. Consequently, a reduction in signal gain of 45 dB was obtained for an input signal power of 250 mW. For the same set of parameters, the effect of non-linear and loss factor was studied and compared with present-day state-of-the-art Erbium Doped Fiber Amplifiers (EDFA). The results obtained can be used constructively in the selection of optimum perturbation frequency under MI phenomenon for the design of MI-based lasers employing TDFAs.
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