# Generation of light beams with custom orbital angular momentum and tunable transverse intensity symmetries

## TL;DR

This paper presents a new modulation method to generate optical beams with customizable orbital angular momentum and adjustable transverse intensity patterns, enabling precise control over beam shape and OAM independently.

## Contribution

A simple, novel modulation technique that independently controls the orbital angular momentum and transverse intensity shape of optical beams.

## Key findings

- Successful experimental demonstration of arbitrary shaping of beam intensity distributions.
- The method accurately matches numerical and theoretical predictions.
- The technique allows independent tuning of OAM and beam shape.

## Abstract

We introduce a novel and simple modulation technique to tailor optical beams with a customized amount of orbital angular momentum (OAM). The technique is based on the modulation of the angular spectrum of a seed beam, which allows us to specify in an independent manner the value of OAM and the shape of the resulting beam transverse intensity. We experimentally demonstrate our method by arbitrarily shaping the radial and angular intensity distributions of Bessel and Laguerre-Gauss beams, while their OAM value remains constant. Our experimental results agree with the numerical and theoretical predictions.