title: Generalized description of spectral incoherent solitons.
abstract: Spectral incoherent solitons (SIS) refer to an incoherent solitonic structure that only can be identified in the frequency domain and which is sustained by noninstantaneous Raman-like nonlinearities. We provide a generalized formulation of SIS by considering the generalized nonlinear Schrödinger equation. We show that nonlinear dispersive effects (e.g., self-steepening) dramatically affect the structure of SIS, in particular by significantly decelerating their spectral velocity in frequency space. The wave turbulence description of the problem reveals an underlying self-organization process: the soliton trajectory in frequency space is selected in such a way that it allows the system to self-organize into a stationary SIS state.
authors.forename: Gang
authors.initials: G
authors.lastname: Xu
authors.forename: Josselin
authors.initials: J
authors.lastname: Garnier
authors.forename: Matteo
authors.initials: M
authors.lastname: Conforti
authors.forename: Antonio
authors.initials: A
authors.lastname: Picozzi