Cross-Polarization Modulation in Polarization-Division Multiplex Transmission
Cross-Polarization Modulation in Polarization-Division Multiplex Transmission
复制标题
偏振分复用传输中的交叉偏振调制
DOI：
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发表时间：
2010
影响因子：
2.6
通讯作者：
Klaus Petermann
中科院分区：
文献类型：
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作者：
M. Winter;Dario Setti;Klaus Petermann
我们从理论上并借助计算机模拟证明，交叉偏振调制引起的非线性去偏振会导致偏振复用 (PolDM) 子通道在解复用过程中发生串扰。这种加性串扰可以近似为加性高斯噪声，我们推导出表达式来估计其方差。它可能会导致 PolDM 传输受到高达几个分贝的严重处罚，因此必须予以适当考虑。我们还展示了为什么时间交织两个子通道可以显着减少这些损失。
We show theoretically and with the aid of computer simulations that the nonlinear depolarization induced by cross-polarization modulation leads to crosstalk between the polarization-division multiplex (PolDM) subchannels during their demultiplexing. This additive crosstalk can be approximated as additive Gaussian noise, and we derive expressions to estimate its variance. It can lead to significant penalties of up to several decibels for PolDM transmission and must be properly accounted for. We also show why time-interleaving both subchannels can significantly reduce these penalties.