Polarization-Controlled Topological Charge Inversion of Optical Vortices in Multielliptical Optical Fibers

Analytical expressions for higher-order modes with azimuthal number |ℓ|≥ 2and their propagation constants for multielliptical optical fibers exhibiting a torsional mechanical stress are obtained in the vicinity of the resonance twist-pitch values. It is demonstrated that the resonance modes represen...

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Veröffentlicht in:Optics and spectroscopy 2018-04, Vol.124 (4), p.560-566
Hauptverfasser: Alexeyev, C. N., Barshak, E. V., Vikulin, D. V., Lapin, B. P., Yavorsky, M. A.
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container_end_page 566
container_issue 4
container_start_page 560
container_title Optics and spectroscopy
container_volume 124
creator Alexeyev, C. N.
Barshak, E. V.
Vikulin, D. V.
Lapin, B. P.
Yavorsky, M. A.
description Analytical expressions for higher-order modes with azimuthal number |ℓ|≥ 2and their propagation constants for multielliptical optical fibers exhibiting a torsional mechanical stress are obtained in the vicinity of the resonance twist-pitch values. It is demonstrated that the resonance modes represent a superposition of two optical vortices with identical circular polarization and opposite signs of the topological charge. The effect of topological-charge inversion of the output optical vortex controlled by a change of sign of the circular polarization of the input beam is predicted. This effect paves the way to creating a logical CNOT element based on multielliptical fibers.
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subjects BEAMS
Circular polarization
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Lasers
Mathematical analysis
Optical Devices
OPTICAL FIBERS
Optics
Photonics
Physical Optics
Physics
Physics and Astronomy
POLARIZATION
RESONANCE
Stress propagation
STRESSES
Superposition (mathematics)
Vortices
title Polarization-Controlled Topological Charge Inversion of Optical Vortices in Multielliptical Optical Fibers
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