Measuring obscured OAM spectrum using Stokes fluctuations
Abstract
A novel technique to measure the orbital angular momentum (OAM) spectrum of the beam obscured by a complex random media is proposed and experimentally demonstrated. This is realized by measuring the complex correlation polarization function (CPCF) with the help of a two-point Stokes fluctuations correlation of the random light. The OAM spectrum analysis is implemented by projecting a complex field of the CPCF into spiral harmonics. A detailed theoretical framework is developed to measure complex amplitude and to decompose different integer OAM states of the obscured beam. The developed theoretical framework is verified by numerical simulation and tested by experimental demonstration of OAM mode compositions of the fractional optical vortex (FOV) beam.
Cite
@article{arxiv.2108.05813,
title = {Measuring obscured OAM spectrum using Stokes fluctuations},
author = {Tushar Sarkar and Reajmina Parvin and Maruthi M. Brundavanam and Rakesh Kumar Singh},
journal= {arXiv preprint arXiv:2108.05813},
year = {2021}
}
Comments
8 pages, 6 figures