Turbulence-resistant self-focusing vortex beams

Meilan Luo, Matias Koivurova, Marco Ornigotti, Chaoliang Ding

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We consider recently introduced self-focusing fields that carry orbital angular momentum (OAM) [2021 Opt. Lett. 46 2384-87] and in particular, their propagation properties through a turbulent ocean. We show that this type of field is especially robust against turbulence induced degradation, when compared to a completely coherent beam. In moderately strong oceanic turbulence, the self-focusing OAM beam features over five orders of magnitude higher peak intensities at the receiver plane, an ∼80% detection probability for the signal mode, as well as an energy transmission efficiency in excess of 70% over a link of ∼100 m. Counter-intuitively, the focusing properties of such fields may be enhanced with increasing turbulence, causing the mean squared waist to become smaller with greater turbulence strength. Our results demonstrate that certain types of partial coherence may be highly desirable for optical telecommunication employing OAM.

Original languageEnglish
Article number093036
Number of pages13
JournalNew Journal of Physics
Volume24
Issue number9
DOIs
Publication statusPublished - 2022
Publication typeA1 Journal article-refereed

Keywords

  • coherence
  • OAM
  • optical telecommunication
  • turbulence

Publication forum classification

  • Publication forum level 2

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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