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Review

Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction

Scientific and Technological Center of Unique Instrumentation of the Russian Academy of Sciences, 117342 Moscow, Russia
Academic Editors: Paulo Caldas and Pavel Peterka
Received: 25 March 2021 / Revised: 24 April 2021 / Accepted: 28 May 2021 / Published: 1 June 2021
(This article belongs to the Special Issue Twisted Light in Optical Fibers)
Polarization is measured very often to study the interaction of light and matter, so the description of the polarization of light beams is of both practical and fundamental interest. This review discusses the polarization properties of structured light in multimode graded-index optical fibers, with an emphasis on the recent advances in the area of spin-orbit interactions. The basic physical principles and properties of twisted light propagating in a graded index fiber are described: rotation of the polarization plane, Laguerre–Gauss vector beams with polarization-orbital angular momentum entanglement, splitting of degenerate modes due to spin-orbit interaction, depolarization of light beams, Berry phase and 2D and 3D degrees of polarizations, etc. Special attention is paid to analytical methods for solving the Maxwell equations of a three-component field using perturbation analysis and quantum mechanical approaches. Vector and tensor polarization degrees for the description of strongly focused light beams and their geometrical interpretation are also discussed. View Full-Text
Keywords: evolution of polarization; degree of polarization; depolarization; graded-index fiber; 3D polarization; spin-orbit interaction; Berry phase; vortex beams evolution of polarization; degree of polarization; depolarization; graded-index fiber; 3D polarization; spin-orbit interaction; Berry phase; vortex beams
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MDPI and ACS Style

Petrov, N.I. Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction. Fibers 2021, 9, 34. https://0-doi-org.brum.beds.ac.uk/10.3390/fib9060034

AMA Style

Petrov NI. Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction. Fibers. 2021; 9(6):34. https://0-doi-org.brum.beds.ac.uk/10.3390/fib9060034

Chicago/Turabian Style

Petrov, Nikolai I. 2021. "Depolarization of Light in Optical Fibers: Effects of Diffraction and Spin-Orbit Interaction" Fibers 9, no. 6: 34. https://0-doi-org.brum.beds.ac.uk/10.3390/fib9060034

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