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...

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Autores principales:	F. Mangini, M. Ferraro, M. Zitelli, V. Kalashnikov, A. Niang, T. Mansuryan, F. Frezza, A. Tonello, V. Couderc, A. B. Aceves, S. Wabnitz
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/458d46492225425c9c66532266bb268f
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spelling	oai:doaj.org-article:458d46492225425c9c66532266bb268f2021-12-02T17:45:17ZRainbow Archimedean spiral emission from optical fibres10.1038/s41598-021-92313-w2045-2322https://doaj.org/article/458d46492225425c9c66532266bb268f2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92313-whttps://doaj.org/toc/2045-2322Abstract 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.F. ManginiM. FerraroM. ZitelliV. KalashnikovA. NiangT. MansuryanF. FrezzaA. TonelloV. CoudercA. B. AcevesS. WabnitzNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q 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
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.
format	article
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
title	Rainbow Archimedean spiral emission from optical fibres
title_short	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_sort	rainbow archimedean spiral emission from optical fibres
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/458d46492225425c9c66532266bb268f
work_keys_str_mv	AT fmangini rainbowarchimedeanspiralemissionfromopticalfibres AT mferraro rainbowarchimedeanspiralemissionfromopticalfibres AT mzitelli rainbowarchimedeanspiralemissionfromopticalfibres AT vkalashnikov rainbowarchimedeanspiralemissionfromopticalfibres AT aniang rainbowarchimedeanspiralemissionfromopticalfibres AT tmansuryan rainbowarchimedeanspiralemissionfromopticalfibres AT ffrezza rainbowarchimedeanspiralemissionfromopticalfibres AT atonello rainbowarchimedeanspiralemissionfromopticalfibres AT vcouderc rainbowarchimedeanspiralemissionfromopticalfibres AT abaceves rainbowarchimedeanspiralemissionfromopticalfibres AT swabnitz rainbowarchimedeanspiralemissionfromopticalfibres
_version_	1718379582371921920

Rainbow Archimedean spiral emission from optical fibres

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