title: Stable topological spatial solitons in optical parametric oscillators.
abstract: We predict that nearly resonant optical parametric oscillators support stable topological spatial solitons as a result of the interplay between diffraction and parametric amplification due to chi((2)) nonlinearities. Robust soliton stripes are observed in two transverse dimensions. Their stability is ensured by the phase-sensitive nature of the underlying parametric process.
authors.forename: S
authors.initials: S
authors.lastname: Trillo
authors.forename: M
authors.initials: M
authors.lastname: Haelterman
authors.forename: A
authors.initials: A
authors.lastname: Sheppard