2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80645We study the properties of linear and nonlinear waveguides induced by optical vortex solitons in both self-defocusing and self-focusing nonlinear media, for the case of a saturable nonlinear response. We demonstrate that the vortex-induced waveguides can guide both fundamental and first-order guided modes which together with the vortex may form, for larger amplitudes of the guide modes, different types of composite vortex-mode vector solitons. In the case of the self-focusing saturable medium, we demonstrate that a large-amplitude guided mode can stabilize the ring-like vortex structure which usually decays due to azimuthal modulational instability.6 pages, 8 figures. A paper for the special issue of Ukr. J. Phys dedicated to Professor Marat Soskin on the occasion of his 75-th birthdayPattern Formation and Solitonstext