Quasimonochromatic dynamical system and optical soliton cooling with triple–power law of self–phase modulation.

Soliton perturbation theory is used in this paper to uncover the adiabatic conservation laws. The effect of soliton cooling arises from a fixed point in the corresponding dynamical system. • This paper addresses the behavior of quasi-monochromatic solitons exhibiting a triple-power law of nonlinearity. • The power and linear momentum conserved quantities are derived by utilizing soliton perturbation theory. • The presence of a fixed point in the derived dynamical system leads to the cooling effect observed in optical solitons. [ABSTRACT FROM AUTHOR]