Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stresses
In this paper, the dispersion of optical vortices (OVs) with a topological charge l >= 1 in twisted elliptical fibers (TEF) with torsional stresses (TS) is studied. Analytical expressions for polarization, topological, and hybrid dispersion are derived from the spectra of vortex modes in step- an...
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| Format: | Article |
| Language: | English |
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Samara National Research University
2024-02-01
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| Series: | Компьютерная оптика |
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| Online Access: | https://www.computeroptics.ru/eng/KO/Annot/KO48-1/480106e.html |
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| author | B.P. Lapin E.V. Barshak D.V. Vikulin C.N. Alexeyev M.A. Yavorsky |
| author_facet | B.P. Lapin E.V. Barshak D.V. Vikulin C.N. Alexeyev M.A. Yavorsky |
| author_sort | B.P. Lapin |
| collection | DOAJ |
| description | In this paper, the dispersion of optical vortices (OVs) with a topological charge l >= 1 in twisted elliptical fibers (TEF) with torsional stresses (TS) is studied. Analytical expressions for polarization, topological, and hybrid dispersion are derived from the spectra of vortex modes in step- and gradient-index TEFs with TS. It is shown that in strongly twisted fibers with a gradient refractive index profile, new types of dispersion appear in comparison with the case of a step-index profile. The dependence of the dispersion of OVs on the material and geometrical parameters of the fiber is studied numerically. It is established that in step-index TEFs with TS, there is a spectral region near which all types of dispersion for OVs with l >= 1 take a near zero value. It is also demonstrated that for TEFs with a gradient profile, this regime is realized for strongly twisted strongly elliptical fibers. |
| format | Article |
| id | doaj-art-db0e8c3438544adca8a921f6e9f97330 |
| institution | Kabale University |
| issn | 0134-2452 2412-6179 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Samara National Research University |
| record_format | Article |
| series | Компьютерная оптика |
| spelling | doaj-art-db0e8c3438544adca8a921f6e9f973302025-02-01T11:03:25ZengSamara National Research UniversityКомпьютерная оптика0134-24522412-61792024-02-01481536010.18287/2412-6179-CO-1340Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stressesB.P. Lapin0E.V. Barshak1D.V. Vikulin2C.N. Alexeyev3M.A. Yavorsky4V.I. Vernadsky Crimean Federal UniversityV.I. Vernadsky Crimean Federal UniversityV.I. Vernadsky Crimean Federal UniversityV.I. Vernadsky Crimean Federal UniversityV.I. Vernadsky Crimean Federal UniversityIn this paper, the dispersion of optical vortices (OVs) with a topological charge l >= 1 in twisted elliptical fibers (TEF) with torsional stresses (TS) is studied. Analytical expressions for polarization, topological, and hybrid dispersion are derived from the spectra of vortex modes in step- and gradient-index TEFs with TS. It is shown that in strongly twisted fibers with a gradient refractive index profile, new types of dispersion appear in comparison with the case of a step-index profile. The dependence of the dispersion of OVs on the material and geometrical parameters of the fiber is studied numerically. It is established that in step-index TEFs with TS, there is a spectral region near which all types of dispersion for OVs with l >= 1 take a near zero value. It is also demonstrated that for TEFs with a gradient profile, this regime is realized for strongly twisted strongly elliptical fibers.https://www.computeroptics.ru/eng/KO/Annot/KO48-1/480106e.htmloptical fibertorsional mechanical stressesdispersionoptical vortex |
| spellingShingle | B.P. Lapin E.V. Barshak D.V. Vikulin C.N. Alexeyev M.A. Yavorsky Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stresses Компьютерная оптика optical fiber torsional mechanical stresses dispersion optical vortex |
| title | Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stresses |
| title_full | Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stresses |
| title_fullStr | Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stresses |
| title_full_unstemmed | Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stresses |
| title_short | Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stresses |
| title_sort | dispersion of optical vortices in twisted elliptical core optical fibers with torsional stresses |
| topic | optical fiber torsional mechanical stresses dispersion optical vortex |
| url | https://www.computeroptics.ru/eng/KO/Annot/KO48-1/480106e.html |
| work_keys_str_mv | AT bplapin dispersionofopticalvorticesintwistedellipticalcoreopticalfiberswithtorsionalstresses AT evbarshak dispersionofopticalvorticesintwistedellipticalcoreopticalfiberswithtorsionalstresses AT dvvikulin dispersionofopticalvorticesintwistedellipticalcoreopticalfiberswithtorsionalstresses AT cnalexeyev dispersionofopticalvorticesintwistedellipticalcoreopticalfiberswithtorsionalstresses AT mayavorsky dispersionofopticalvorticesintwistedellipticalcoreopticalfiberswithtorsionalstresses |