Four Bundle Optical Singularities Spatial Evolution

Abstract Complex optical vortex bundles produced by dislocations arranged in accordance with the group of symmetry are studied theoretically and experimentally. The spatial evolution of optical vortices is investigated for three types of spatial configurations based on the signs of dislocation topological charges. Theoretical predictions derived from the Fresnel diffraction integral and the hydrodynamic approach have been found to be consistent with each other and are in a good agreement with the experimental results. For all cases, the symmetry properties of the dislocation arrangement are shown to be imposed to optical vortex bundles produced. The observed dynamics provides new insights into the behavior of singularities in complex optical fields.