Propagation of partially coherent vortex beams in atmospheric turbulence by a spatial light modulator

Abstract

We study the spectral density of partially coherent vortex beams propagating in atmospheric turbulence by numerical simulation and experiments with a spatial light modulator. On the basis of the new simulation method proposed in our previous work, we extend the research objective from coherent beams to partially coherent beams. The spectral density of partially coherent vortex beams propagating in Kolmogorov and non-Kolmogorov turbulence is studied by further optimization of the simulation method with beam wander. Consistent results between numerical simulation and experiments are obtained to prove our standpoint. The study of the spectral density of partially coherent beams propagating in a turbulent environment with the improved simulation method proposed by us is helpful for improving the accuracy of simulating partially coherent beams in optical study. It is of great significance for the comprehensive research of beam propagation in turbulence.

Structured light in the spatially partially coherent regime

“…Recently, they have been used for the encryption of information [26]. Along the same line, the use of partially coherent structured modes has been subject of intense research for free-space optical communications, as shown in [27][28][29][30].…”

Robustness of partially coherent vortex beams to the impact of dynamic Kolmogorov kind of turbulence

“…Many attempts have been made to study the resilience of optical beams with vortex phases in a partially coherent regime when they pass through turbulence [18][19][20][21]. But none of them explores the effect of controllable dynamic turbulence in the Kolmogorov regime.…”

Design and analysis of OAM-DM underwater wireless optical communication system

“…With the continuous development of economy and technology, there is a greater demand for underwater information communication. A new wireless optical communication system that can adapt to the complex underwater communication environment is the key to solve this problem [2]. Orbital Angular Momentum ( OAM ) is a basic physical property of light propagation, which is related to the spatial distribution of light phase and is a new available electromagnetic capacity resource [3].…”