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

Alexeyev, C N; Barshak, E. V.; Vikulin, Dmitriy; Lapin, B. P.; Yavorsky, M. A.

doi:10.1134/s0030400x18040021

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…It is obvious that intensive twisting, which suppresses both the effects of the SOI and external perturbation, provides OV stability. We now consider external perturbation, under which the fiber's cross-section is changed to a multi-elliptical form [35]:…”

Section: Robustness Of the Higher-order |ℓ| > 1 Optical Vortices In T...mentioning

confidence: 99%

Robust higher-order optical vortices for information transmission in twisted anisotropic optical fibers

Barshak

Vikulin

Lapin

et al. 2021

J. Opt.

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We study the propagation of light in twisted anisotropic fibers by obtaining the analytical expressions and propagation constants for higher-order modes with the azimuthal number | ℓ | > 1 . It is shown that for arbitrary fiber parameters, the modes are elliptically polarized optical vortices of well-defined orbital angular momentum. We reveal the phenomena of orbital birefringence and the optical Zeeman effect for the higher-order topologically charged fiber modes. Finally, circularly and linearly polarized optical vortices are demonstrated to be modes that are robust against small constant and spatially varying perturbations of both fiber material and form anisotropy; this robustness is due to the effects of the spin–orbit interaction and/or torsional-stress-induced orbital birefringence.

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Section: Robustness Of the Higher-order |ℓ| > 1 Optical Vortices In T...mentioning

confidence: 99%

Robust higher-order optical vortices for information transmission in twisted anisotropic optical fibers

Barshak

Vikulin

Lapin

et al. 2021

J. Opt.

View full text Add to dashboard Cite

show abstract

“…In addition to the above mentioned free-space methods, using fiber-based structures to generate OV beams has also attracted considerable interest due to the inherent advantage of optical fibers, such as flexibility, compactness, low cost and remote delivery. Particularly, fiber-based vortex generation and control technology can be well combined with communication and information processing systems [19]. Moreover, the optical fiber vortices may also have some reference significance for the study of vortical modes in cigarshaped traps for matter waves [20].…”

Section: Introductionmentioning

confidence: 99%

Generation of optical vortices using asymmetrically spliced fibers

Zhao

et al. 2019

J. Opt.

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We experimentally demonstrate a simple approach to generate optical vortex (OV) beams using optical fibers. The main structure is realized by asymmetrically splicing a standard simple-mode fiber with a two-mode fiber (TMF). The asymmetrical fusion joint can partly convert input fundamental mode to higher-order fiber modes. The unconverted fundamental mode component can be eventually filtered out through adjusting the states of two polarization controllers (PCs) applied on the two fibers and one polarizer located behind the output end of the TMF. By adjusting the two PCs, one can also selectively generate LP modes or OV modes with ℓ = ±1. The relationship between offsets and conversion efficiency is measured and analyzed, which accords well with the simulation. Mode purity and working bandwidth are also measured in the experiment.

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

Cited by 2 publications

References 28 publications

Robust higher-order optical vortices for information transmission in twisted anisotropic optical fibers

Robust higher-order optical vortices for information transmission in twisted anisotropic optical fibers

Generation of optical vortices using asymmetrically spliced fibers

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