Extension and validation of the GN model for non-linear interference to uncompensated links using Raman amplification.
Extension and validation of the GN model for non-linear interference to uncompensated links using Raman amplification.
复制标题
使用拉曼放大对未补偿链路的非线性干扰的 GN 模型进行扩展和验证。
作者：
V. Curri;A. Carena;P. Poggiolini;G. Bosco;F. Forghieri
我们展示了高斯噪声模型的扩展，该模型描述了在多电平调制格式的无补偿链路中的非线性传播，到使用拉曼放大的系统。通过对Nyquist-WDM PM-16QAM信道在单光纤类型的多跨无补偿链路上传输的数值模拟，并使用带反传播泵的混合EDFA/拉曼放大，成功地验证了分析结果。我们分析了两种典型的高色散和低色散光纤类型。我们表明，与主要的ASE降噪相比，拉曼放大总是引起有限的非线性干扰增强。
We show the extension of the Gaussian Noise model, which describes non-linear propagation in uncompensated links of multilevel modulation formats, to systems using Raman amplification. We successfully validate the analytical results by comparison with numerical simulations of Nyquist-WDM PM-16QAM channels transmission over multi-span uncompensated links made of a single fiber type and using hybrid EDFA/Raman amplification with counter-propagating pumps. We analyze two typical high- and low-dispersion fiber types. We show that Raman amplification always induces a limited non-linear interference enhancement compared to the dominant ASE noise reduction.