The scaling of nonlinear effects in multi-mode fibers with the mode count has been investigated by analytical studies and by numerical simulations. Increasing the core radius results in larger effective mode field areas, which reduces the impact of nonlinear effects. On the other hand, the presence of more interaction partners for intermodal nonlinear interactions due to a higher number of propagating modes strengthens the impact of nonlinear signal degradations on data transmission. Our results indicate that these two trends are mostly balanced even for large mode counts. Transmission reaches and system performance comparable to standard single-mode fibers are achievable for at least 100 modes.

中文翻译：

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用于模分复用的多模光纤中的非线性减损缩放

通过分析研究和数值模拟，已经研究了具有模数的多模光纤中非线性效应的标度。增大磁芯半径会导致较大的有效模式场面积，从而减小非线性效应的影响。另一方面，由于数量更多的传播模式，用于模式间非线性交互的更多交互伙伴的存在增强了非线性信号降级对数据传输的影响。我们的结果表明，即使对于较大的模式计数，这两种趋势也基本平衡。对于至少100种模式，可以达到与标准单模光纤相当的传输范围和系统性能。