Chaotic lasing regimes in the unstable cavity of an inhomogeneously pumped fast-flow laser

The scenario for the development of the characteristics of chaotic emission by a fast-flow laser with an unstable cavity and spatially inhomogeneous pumping was investigated numerically. The complex evolution of the dynamic regimes, accompanied by a number of bifurcations, was investigated by varying the controlling parameter within the limits of the region of existence of chaotic lasing. It was found that, under certain conditions, the chaotic dynamics undergoes a transition to regular dynamics. The Fourier emission spectra were calculated, the dimensions of the chaotic attractors were determined, and Poincare maps were constructed.