Digital back propagation in soliton coherent transmission

We have revised soliton transmission in the new context of coherent optical detection optimizing and comparing digital backward propagation and in-line optical filtering as a means to suppress soliton timing and phase jitter. We find that in-line optical filtering allows one to improve the reach of the soliton system by up to the factor of two. We compared jitter suppression for transmission links using different types of fiber. We showed that with launch power growth jitter suppression is less efficient. However, our results show that nonlinear propagation can lead to enhanced performance of the fiber network systems.