Malomed B, Peng G D, Chu P L
Opt Lett. 1999 Aug 15;24(16):1100-2. doi: 10.1364/ol.24.001100.
We propose a wavelength-division multiplexing system in which transmission of solitons is stabilized by fixed- or sliding-frequency notch filters (a soliton rail), providing channel isolation. We demonstrate analytically and numerically that a soliton trapped in a channel between two notches is very robust. We also predict an optimum ratio between the channel separation and the soliton's spectral width. The effects of interchannel collisions are considered, and it is demonstrated that these effects can be largely eliminated by notch filters, which require a compensatory gain that is comparable with the basic gain balancing the fiber loss.
我们提出了一种波分复用系统，其中孤子的传输通过固定或滑动频率陷波滤波器（孤子轨道）来稳定，从而提供信道隔离。我们通过分析和数值模拟证明，被困在两个陷波之间通道中的孤子非常稳健。我们还预测了通道间隔与孤子光谱宽度之间的最佳比率。考虑了通道间碰撞的影响，并证明这些影响可以通过陷波滤波器在很大程度上消除，陷波滤波器需要与平衡光纤损耗的基本增益相当的补偿增益。
