Rainbow Archimedean spiral emission from optical fibres
Abstract We demonstrate a new practical approach for generating multicolour spiral-shaped beams. It makes use of a standard silica optical fibre, combined with a tilted input laser beam. The resulting breaking of the fibre axial symmetry leads to the propagation of a helical beam. The associated out...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2021-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-92313-w |
| _version_ | 1818736182257778688 |
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| author | F. Mangini M. Ferraro M. Zitelli V. Kalashnikov A. Niang T. Mansuryan F. Frezza A. Tonello V. Couderc A. B. Aceves S. Wabnitz |
| author_facet | F. Mangini M. Ferraro M. Zitelli V. Kalashnikov A. Niang T. Mansuryan F. Frezza A. Tonello V. Couderc A. B. Aceves S. Wabnitz |
| author_sort | F. Mangini |
| collection | DOAJ |
| description | Abstract We demonstrate a new practical approach for generating multicolour spiral-shaped beams. It makes use of a standard silica optical fibre, combined with a tilted input laser beam. The resulting breaking of the fibre axial symmetry leads to the propagation of a helical beam. The associated output far-field has a spiral shape, independently of the input laser power value. Whereas, with a high-power near-infrared femtosecond laser, a visible supercontinuum spiral emission is generated. With appropriate control of the input laser coupling conditions, the colours of the spiral spatially self-organize in a rainbow distribution. Our method is independent of the laser source wavelength and polarization. Therefore, standard optical fibres may be used for generating spiral beams in many applications, ranging from communications to optical tweezers and quantum optics. |
| first_indexed | 2024-12-18T00:33:05Z |
| format | Article |
| id | doaj.art-458d46492225425c9c66532266bb268f |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-18T00:33:05Z |
| publishDate | 2021-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-458d46492225425c9c66532266bb268f2022-12-21T21:27:05ZengNature PortfolioScientific Reports2045-23222021-06-0111111010.1038/s41598-021-92313-wRainbow Archimedean spiral emission from optical fibresF. Mangini0M. Ferraro1M. Zitelli2V. Kalashnikov3A. Niang4T. Mansuryan5F. Frezza6A. Tonello7V. Couderc8A. B. Aceves9S. Wabnitz10Department of Information Engineering (DII), University of BresciaDepartment of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of RomeDepartment of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of RomeDepartment of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of RomeDepartment of Information Engineering (DII), University of BresciaUniversité de Limoges, XLIM, UMR CNRS 7252Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of RomeUniversité de Limoges, XLIM, UMR CNRS 7252Université de Limoges, XLIM, UMR CNRS 7252Department of Mathematics, Southern Methodist UniversityDepartment of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of RomeAbstract We demonstrate a new practical approach for generating multicolour spiral-shaped beams. It makes use of a standard silica optical fibre, combined with a tilted input laser beam. The resulting breaking of the fibre axial symmetry leads to the propagation of a helical beam. The associated output far-field has a spiral shape, independently of the input laser power value. Whereas, with a high-power near-infrared femtosecond laser, a visible supercontinuum spiral emission is generated. With appropriate control of the input laser coupling conditions, the colours of the spiral spatially self-organize in a rainbow distribution. Our method is independent of the laser source wavelength and polarization. Therefore, standard optical fibres may be used for generating spiral beams in many applications, ranging from communications to optical tweezers and quantum optics.https://doi.org/10.1038/s41598-021-92313-w |
| spellingShingle | F. Mangini M. Ferraro M. Zitelli V. Kalashnikov A. Niang T. Mansuryan F. Frezza A. Tonello V. Couderc A. B. Aceves S. Wabnitz Rainbow Archimedean spiral emission from optical fibres Scientific Reports |
| title | Rainbow Archimedean spiral emission from optical fibres |
| title_full | Rainbow Archimedean spiral emission from optical fibres |
| title_fullStr | Rainbow Archimedean spiral emission from optical fibres |
| title_full_unstemmed | Rainbow Archimedean spiral emission from optical fibres |
| title_short | Rainbow Archimedean spiral emission from optical fibres |
| title_sort | rainbow archimedean spiral emission from optical fibres |
| url | https://doi.org/10.1038/s41598-021-92313-w |
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