Transmission and generation of orbital angular momentum modes in optical fibers

Zhuo Wang, Jiajing Tu, Shecheng Gao, Zhaohui Li, Changyuan Yu, Chao Lu

Research output: Journal article publicationReview articleAcademic researchpeer-review

Abstract

The orbital angular momentum (OAM) of light provides a new degree of freedom for carrying information. The stable propagation and generation of OAM modes are necessary for the fields of OAM-based optical communications and microscopies. In this review, we focus on discussing the novel fibers that are suitable for stable OAM mode transmission and conversion. The fundamental theory of fiber modes is introduced first. Then, recent progress on a multitude of fiber designs that can stably guide or generate OAM modes is reviewed. Currently, the mode crosstalk is regarded as the main issue that damages OAM mode stability. Therefore, the coupled-mode theory and coupled-power power theory are introduced to analyze OAM modes crosstalk. Finally, the challenges and prospects of the applications of OAM fibers are discussed.

Original languageEnglish
Article number246
JournalPhotonics
Volume8
Issue number7
DOIs
Publication statusPublished - Jul 2021

Keywords

  • Fiber mode crosstalk
  • Optical fiber
  • Orbital angular momentum
  • Vortex mode generator

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Radiology Nuclear Medicine and imaging

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