Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Twisted Few-Mode Optical Fiber with Improved Height of Quasi-Step Refractive Index Profile

Version 1 : Received: 24 March 2022 / Approved: 30 March 2022 / Online: 30 March 2022 (15:17:48 CEST)

A peer-reviewed article of this Preprint also exists.

Bourdine, A.V.; Demidov, V.V.; Kuznetsov, A.A.; Vasilets, A.A.; Ter-Nersesyants, E.V.; Khokhlov, A.V.; Matrosova, A.S.; Pchelkin, G.A.; Dashkov, M.V.; Zaitseva, E.S.; Gizatulin, A.R.; Meshkov, I.K.; Sakhabutdinov, A.Z.; Dmitriev, E.V.; Morozov, O.G.; Burdin, V.A.; Dukelskii, K.V.; Ismail, Y.; Petruccione, F.; Singh, G.; Tiwari, M.; Yin, J. Twisted Few-Mode Optical Fiber with Improved Height of Quasi-Step Refractive Index Profile. Sensors 2022, 22, 3124. Bourdine, A.V.; Demidov, V.V.; Kuznetsov, A.A.; Vasilets, A.A.; Ter-Nersesyants, E.V.; Khokhlov, A.V.; Matrosova, A.S.; Pchelkin, G.A.; Dashkov, M.V.; Zaitseva, E.S.; Gizatulin, A.R.; Meshkov, I.K.; Sakhabutdinov, A.Z.; Dmitriev, E.V.; Morozov, O.G.; Burdin, V.A.; Dukelskii, K.V.; Ismail, Y.; Petruccione, F.; Singh, G.; Tiwari, M.; Yin, J. Twisted Few-Mode Optical Fiber with Improved Height of Quasi-Step Refractive Index Profile. Sensors 2022, 22, 3124.

Abstract

This work presents results of property researches of fabricated samples of silica few-mode optical fiber (FMF) with induced chirality under twisting 10 and 66 revolutions per meter, core diameter 11 µm, typical “telecommunication” cladding diameter 125 µm and improved height of quasi-step refractive index profile. Proposed FMF supports 4 guided modes over “C”-band. We represent results of computed characteristics, as well as experimentally measured spectral responses of laser-excited optical signals, including researches and analysis of few-mode effects, occurring after fiber Bragg grating writing.

Keywords

twisted optical fiber; chirality; laser beam profile; differential mode delay; laser-based few-mode optical signal transmission; fiber Bragg grating; few-mode effects

Subject

Physical Sciences, Optics and Photonics

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