Generation and Measurement of High-order Optical Vortex via Cross-Phase

TL;DR

This paper presents a novel method for generating and measuring high-order optical vortices using cross-phase, demonstrating successful creation and detection of vortices with high topological charges, and analyzing their intensity distributions.

Contribution

It introduces an alternative approach for high-order OV generation and measurement, expanding capabilities for advanced optical applications.

Findings

Successfully generated high-order OVs with l=60, p=20

Measured high-order OVs with l=200, p=0, consistent with simulations

Analyzed intensity distributions versus waist radius of initial beams

Abstract

The generation and measurement of optical vortex (OV) are the basis for a variety of related applications. However, the special case of high-order OVs has not been sufficient addressed yet. Herein, a generation and measurement method of high-order OV via utilizing the CP is investigated. In the experiment, we generate OVs with l=60, p=20 and successfully measure OVs with l=200,p=0, where experimental results agree well with simulation outcome. On this basis, the intensity distributions of LG and HG beams (corresponding to the generation and measurement) versus waist radius of initial light beams is discussed. This work provides an alternative method to generate or measure high-order OV, which will facilitate applications in optical micro-manipulation, quantum entanglement and rotation speed detection.