Vector laser solitons with rotating polarization topological defects

We show numerically the existence of robust two-component vector solitons in an unpolarized (polarization isotropic) bistable laser with transversely extended resonator. Four types of the laser vector solitons are found which have distinct spatial distribution of polarization states containing polarization topological defects, namely: points of circular polarizations (C-points) and lines of linear polarizations (L-lines). Morphology and dynamics of the polarization defects are analyzed.