Abstract
We predict multifrequency 2π solitons in the cascade stimulated Raman scattering, mode locked by the dynamics of Raman quantum transition; they are "eigensolitons" of a general solitary wave solution. Soliton components at each individual frequency are "bright" pulses of the same, Lorentzian, shape; their interference gives rise to the train of well resolved high intensity subfemtosecond pulses.