The simulation study of typical vortex beam

The topological charge of the vortex beam can be from negative infinity to positive infinity, which provides a theoretical basis for orbital angular momentum reuse and high-dimensional quantum communication. Based on the analysis of the characteristics of vortex beam, the variation of the intensity and phase of the vortex beam with the topological charge are simulated and studied, which lays the foundation for the theoretical and experimental research of the vortex beam.