Control of optical vortex dislocations using optical methods

Abstract

In this paper we present the results of theoretical and experimental investigations of the optical vortex screw-dislocation position control based on optical vortex interference with the Gaussian beam. Optical vortices can be controlled by joining a Gaussian beam with a collinear optical vortex beam and changing the Gaussian beam intensity and phase. It is shown theoretically and experimentally that in this way it is possible to precisely change the optical vortex screw-dislocation position in plane transverse to propagation direction.