  We introduce a spin-flip model for a broad-area Vertical-Cavity
Surface-Emitting Laser (VCSEL) with a saturable absorber. We demonstrate
simultaneous existence of orthogonally linearly polarized and elliptically
polarized cavity solitons. We show that polarization degree of freedom leads to
period doubling route to spatially localized chaos of the elliptically
polarized cavity solitons.
