2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/229137We report on the generation of multiwavelength gain-guided soliton (GGS) in an all normal dispersion birefringent fiber laser passively mode-locked with a semiconductor saturable absorber mirror (SESAM). Determined by the cavity birefringence, we observe the stable single-, dual- and triple- wavelength mode locked GGSs, which is a natural consequence of the mutual nonlinear interaction among the normal cavity dispersion, cavity fiber nonlinear Kerr effect, laser gain saturation and bandwidth limitation resulting from the intra-cavity birefringent filter.17 pages,4 figures. Submitted to Optics ExpressOpticsMultiwavelength Passively Mode Locked Fiber Laser: all normal dispersiontext