Abstract Based on the small-amplitude approximation on a CW pedestal,the role of self-steepening effect in nonlinear dynamics and transmmision of soliton in normal andanomalous dispersion regions is investigated.

• 基于连续波背景上的小振幅近似，研究了自变陡效应对正常色散区和非常色散区孤波传输动力学的决定作用。