Interference of high-order perfect optical vortex beams

TL;DR

This study explores the interference behavior of high-order perfect optical vortex beams, revealing their unique splitting phenomena and sensitivity to various parameters, with implications for optical manipulation and communication.

Contribution

It provides the first detailed analysis of interference patterns of high-order POV beams and compares their behavior with Laguerre-Gauss beams, highlighting their distinct properties.

Findings

Splitting of POV beams occurs at fixed inter-axial separation regardless of topological charge.

Interference patterns are highly sensitive to axial separation, phase shift, and beam parameters.

POV beam splitting is more rapid than that of Laguerre-Gauss beams.

Abstract

We investigate the interference of high-order perfect optical vortex (POV) beams with different topological charges. Through numerical simulations, we reveal a remarkable phenomenon: keeping the beam width, and beam radius fixed while changing the topological charge, the splitting of the composite POV beam into two distinct individual perfect vortices occurs exactly at the same inter-axial separation. The observed interference pattern exhibits pronounced sensitivity to factors such as axial separation, phase shift, beam radius, and topological charges of the constituent beams. Notably, our findings are contrasted with the interference of high-order Laguerre-Gauss (LG) beams, highlighting that the splitting of composite vortices into their individual components is more rapid in the case of LG beams. Our research provides significant insights into the distinct interference properties of high-order POV beams, presenting potential applications in the fields of optical manipulation and communication systems.