Impact of Brillouin Backscattering on Signal Distortions in Single-Fiber Diversity Loop Based Polarization-Insensitive FOPAs

Impact of Brillouin Backscattering on Signal Distortions in Single-Fiber Diversity Loop Based Polarization-Insensitive FOPAs
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布里渊后向散射对基于单光纤分集环路的偏振不敏感 FOPA 信号失真的影响

DOI:
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发表时间:
2017
影响因子:
4.7
通讯作者:
K. Petermann
K. Petermann
中科院分区:
工程技术2区
文献类型:
--
作者:
M. Jazayerifar;I. Sackey;R. Elschner;T. Richter;L. Molle;P. W. Berenguer;C. Schubert;K. Jamshidi;K. Petermann

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我们从实验和数值两方面研究了布里渊后向散射对基于单光纤环的偏振不敏感光纤参量放大器的影响。我们发现,由于反向传播泵浦的布里渊相互作用,环路配置会导致泵浦光谱的失真。当使用传统的高度非线性光纤时,这可能导致高增益下放大的数据信号的显著失真。我们在实验中彻底调查的效果,并推导出一个数值模型。这使我们能够比较的结果,从系统实验与28 GBd正交相移键控信号的系统模拟显示出良好的协议的系统。基于该模型,我们最后估计,一个大的增益(约20 dB)与低的光信噪比惩罚(0.15 dB,误码率为1\times {10^{ - 4}}$)的放大数据信号应该是可能的,在一个单光纤环路与布里渊抑制高度非线性光纤。
We both experimentally and numerically investigate the impact of Brillouin backscattering in single-fiber-loop-based polarization-insensitive fiber-optical parametric amplifiers. We show that the loop configuration can cause distortions in the pump spectra due to Brillouin interactions of the counter-propagating pumps. This can result in significant distortions for amplified data signals at high gain when conventional highly nonlinear fibers are used. We thoroughly investigate the effect in experiments and derive a numerical model. This allows us to compare the results from system experiments with 28 GBd quadrature-phase shift keying signals to system simulations showing a good agreement on the system. Based on the model, we finally estimate that a large gain (∼20 dB) with a low optical signal-to-noise ratio penalty (0.15 dB at bit error rate of $1 \times {10^{ - 4}}$) for the amplified data signal should be possible in a single-fiber loop with Brillouin-suppressed highly nonlinear fibers.
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