Abstract

The effect of Raman self-scattering or the red self-frequency shifting of the soliton spectrum is one of the fundamental nonlinear effect in fibers [1-8]. Experimental and theoretical investigations of this effect have been carried out up to now in standard fibres using the traditional approximation of the NSE. This approximation corresponds to spectral-homogeneous dependence of GVD on frequency. However, even the first experiments with dispersion-shifted and erbium-doped fibres [8-11] and the theoretical works on femtosecond soliton propagation in fibers with potential barrier-like shaped dispersion [12,13] pointed to the possibility of new effects.

© 1993 Optical Society of America