Abstract

In a long-distance soliton communications system, the optical filter is inserted after every optical amplifier to reduce the soliton interaction and timing jitter. Furthermore, it is found that the reductions of the soliton interaction and timing jitter with the sliding-frequency filter are better and those with the filter of fixed center frequency. In this paper, we will compare the reductions of the soliton interactions by using the different sliding-frequency filters: the FPF, the second-order BWF, and the third- order BWF, and show that the second-order BWF can more effectively reduce the soliton interaction than the FPF or the third-order BWF.

© 1996 Optical Society of America