Abstract

It is known that the use of relatively narrow filters in soliton communication systems reduces the perturbations to the soliton amplitude and frequency permitting an increase in the propagation distance. However, such an approach requires excess gain to compensate for soliton loss at the filters, so the system is intrinsically unstable due to the growth of non-soliton component and accumulation of ASE noise. Sliding filters¹ and nonlinear gain² were proposed to suppress this instability.

© 1994 Optical Society of America