Perfect Optical Vortex Beam for Optical Communication

Abstract

Concentric perfect optical vortex beam(CPOV) is a significant light field which pay much attention. Here, we demonstrate the CPOV beam be used in Free-space optical communications, which can increase capacity at finite aperture. The result shows the CPOV beam could be decoded simply via the conjugate beam interference method. Moreover, we design a communication system and realize the transmission of pixel value. Furthermore, the intensity of the perfect optical vortex(pOV) beam in the outermost decreases with the number of POV beam increasing, and will slowly decrease. For 8 POV beams, the light intensity of the outermost POV beam is about 5% lower than that of its neighbor.