Controlled modulation of optical energy in the high order Hermite-Gaussian laser modes

TL;DR

This paper presents a numerical method to controllably redistribute optical energy among high order Hermite-Gaussian laser modes' lobes, enabling tailored energy profiles for diverse optical applications.

Contribution

A novel numerical approach for controlled energy redistribution in high order Hermite-Gaussian modes, enhancing their utility in various optical technologies.

Findings

Energy redistribution among lobes is achieved effectively.

Modes can be transformed into all high intense lobes.

Method enables tailored optical energy profiles for applications.

Abstract

The multiple lobes of high order Hermite-Gaussian (HG) laser modes differ in terms of shape, size, and optical energy distribution. Here, we introduce a generic numerical method that redistributes optical energy among the lobes of high order HG modes such that all the identical low intense lobes become both moderate or high intense lobes and vice-versa, in a controlled manner. Further, the modes which consist of only two types of intensity distribution among its multiple lobes are transformed together into all high intense lobes. Furthermore, in some cases, moderate intense lobes together with high intense lobes become high intense lobes, and moderate intense lobes together with low intense lobes become high intense lobes. Such controlled modulation of optical energy may offer efficient and selective utilization of each lobe of HG modes in most applications like particle manipulation, optical lithography, and the method can be used in other fields like nonlinear frequency conversion and shaping ultrafast optical pulses.