Dynamic polarization-dependent optical-vortex-controlling via a fiber with acousto-optic interaction

Abstract

We report a new dynamic polarization-dependent mode conversion in a circular optical fiber endowed with the acousto-optic interaction, in which the sign of the topological charge of the generated fiber optical vortex are governed by the linear polarization direction of the incident beam. The described e_ect can be useful in developing new acousto-optic devices such, for example, as polarization-controlled optical vortex intensity modulators. Yet, this type of all-fiber wavelength-tunable optical vortex generation and controlling should be especially useful in such vortex-based applications as micromechanics, classical and quantum information encryption, and simulation of quantum computing.