Integrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states

Abstract Recent studies demonstrated that the optical channels encoded by Orbital Angular Momentum (OAM) are capable candidates for improving the next generation of communication systems. OAM states can enhance the capacity and security of high-dimensional communication channels in both classical an...

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Autores principales:	S. Faezeh Mousavi, Rahman Nouroozi, Giuseppe Vallone, Paolo Villoresi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8bdf59c3322746728db92a7116ab30e8
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spelling	oai:doaj.org-article:8bdf59c3322746728db92a7116ab30e82021-12-02T11:52:37ZIntegrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states10.1038/s41598-017-04118-52045-2322https://doaj.org/article/8bdf59c3322746728db92a7116ab30e82017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04118-5https://doaj.org/toc/2045-2322Abstract Recent studies demonstrated that the optical channels encoded by Orbital Angular Momentum (OAM) are capable candidates for improving the next generation of communication systems. OAM states can enhance the capacity and security of high-dimensional communication channels in both classical and quantum regimes based on optical fibre and free space. Hence, fast and precise control of the beams encoded by OAM can provide their commercial applications in the compatible communication networks. Integrated optical devices are good miniaturized options to perform this issue. This paper proposes a numerically verified integrated high-frequency electro-optical modulator for manipulation of the guided modes encoded in both OAM and polarization states. The proposed modulator is designed as an electro-optically active Lithium Niobate (LN) core photonic wire with silica as its cladding in a LN on Insulator (LNOI) configuration. It consists of two successive parts; a phase shifter to reverse the rotation handedness of the input OAM state and a polarization converter to change the horizontally polarized OAM state to the vertically polarized one. It is shown that all four possible output polarization-OAM encoded states can be achieved with only 6 V and 7 V applied voltages to the electrodes in the two parts of the modulator.S. Faezeh MousaviRahman NourooziGiuseppe VallonePaolo VilloresiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q S. Faezeh Mousavi Rahman Nouroozi Giuseppe Vallone Paolo Villoresi Integrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states
description	Abstract Recent studies demonstrated that the optical channels encoded by Orbital Angular Momentum (OAM) are capable candidates for improving the next generation of communication systems. OAM states can enhance the capacity and security of high-dimensional communication channels in both classical and quantum regimes based on optical fibre and free space. Hence, fast and precise control of the beams encoded by OAM can provide their commercial applications in the compatible communication networks. Integrated optical devices are good miniaturized options to perform this issue. This paper proposes a numerically verified integrated high-frequency electro-optical modulator for manipulation of the guided modes encoded in both OAM and polarization states. The proposed modulator is designed as an electro-optically active Lithium Niobate (LN) core photonic wire with silica as its cladding in a LN on Insulator (LNOI) configuration. It consists of two successive parts; a phase shifter to reverse the rotation handedness of the input OAM state and a polarization converter to change the horizontally polarized OAM state to the vertically polarized one. It is shown that all four possible output polarization-OAM encoded states can be achieved with only 6 V and 7 V applied voltages to the electrodes in the two parts of the modulator.
format	article
author	S. Faezeh Mousavi Rahman Nouroozi Giuseppe Vallone Paolo Villoresi
author_facet	S. Faezeh Mousavi Rahman Nouroozi Giuseppe Vallone Paolo Villoresi
author_sort	S. Faezeh Mousavi
title	Integrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states
title_short	Integrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states
title_full	Integrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states
title_fullStr	Integrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states
title_full_unstemmed	Integrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states
title_sort	integrated optical modulator manipulating the polarization and rotation handedness of orbital angular momentum states
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/8bdf59c3322746728db92a7116ab30e8
work_keys_str_mv	AT sfaezehmousavi integratedopticalmodulatormanipulatingthepolarizationandrotationhandednessoforbitalangularmomentumstates AT rahmannouroozi integratedopticalmodulatormanipulatingthepolarizationandrotationhandednessoforbitalangularmomentumstates AT giuseppevallone integratedopticalmodulatormanipulatingthepolarizationandrotationhandednessoforbitalangularmomentumstates AT paolovilloresi integratedopticalmodulatormanipulatingthepolarizationandrotationhandednessoforbitalangularmomentumstates
_version_	1718394995280445440

Integrated optical modulator manipulating the polarization and rotation handedness of Orbital Angular Momentum states

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