Photonic orbital angular momentum in turbulence: vortex splitting and adaptive optics - Sorbonne Université Access content directly
Conference Papers Year : 2020

Photonic orbital angular momentum in turbulence: vortex splitting and adaptive optics

Abstract

Recent works revealed that transmission of light beams carrying orbital-angular-momentum (OAM) through turbulence causes the optical vortex defining these beams to split into multiple vortices with unit topological charge. Here, we consider the numerical propagation of orbital-angular-momentum (OAM) modes through a horizontal atmospheric channel. By analysing the beam's phase front after transmission through turbulence, we confirm the occurence of vortex splitting, but we also witness the emergence of vortex-antivortex pairs. Moreover, by performing performing a decomposition of the transmitted wave into OAM modes, we show that while adaptive optics cannot cancel vortex splitting, it still is pretty efficient in diminishing the turbulence-induced crosstalk between different OAM modes.
Fichier principal
Vignette du fichier
Sorelli et al. - 2020 - Photonic orbital angular momentum in turbulence v.pdf (3.72 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03267308 , version 1 (22-06-2021)

Identifiers

Cite

Giacomo Sorelli, Vyaceslav N Shatokhin, Andreas Buchleitner. Photonic orbital angular momentum in turbulence: vortex splitting and adaptive optics. SPIE Remote Sensing, Sep 2020, Online Only, France. pp.10, ⟨10.1117/12.2573474⟩. ⟨hal-03267308⟩
38 View
134 Download

Altmetric

Share

Gmail Facebook X LinkedIn More