Raman self-frequency shift of the spectrum of femtosecond optical solitons and suppression of this effect in optical fibers and soliton lasers
Bulushev A. G., Dianov E. M., Okhotnikov O. G., Serkin V. N.
A change in the sign of the group-velocity dispersion in a Raman-active nonlinear dispersive medium results in a "quenching" of molecular vibrations. It also effectively suppresses the Raman self-scattering of femtosecond solitons.