2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80831We consider the process of light scattering by optical solitons in a planar waveguide with homogeneous and inhomogeneous refractive index core. We observe resonant reflection (Fano resonances) as well as resonant transmission of light by optical solitons. All resonant effects can be controlled in experiment by changing the soliton intensity.4 pages, 3 figures, Revised version: published in PRLPattern Formation and SolitonsOther Condensed MatterOpticstext