Article (Scientific journals)
Brillouin Interaction between Two Optical Modes Selectively Excited in Weakly Guiding Multimode Optical Fibers
Fotiadi, Andrei; Rafailov, Edik; Korobko, Dmitry et al.
2023In Sensors, 23 (3), p. 1715
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Keywords :
Electrical and Electronic Engineering; Biochemistry; Instrumentation; Atomic and Molecular Physics, and Optics; Analytical Chemistry
Abstract :
[en] A multimode optical fiber supports excitation and propagation of a pure single optical mode, i.e., the field pattern that satisfies the boundary conditions and does not change along the fiber. When two counterpropagating pure optical modes are excited, they could interact through the stimulated Brillouin scattering (SBS) process. Here, we present a simple theoretical formalism describing SBS interaction between two individual optical modes selectively excited in an acoustically isotropic multimode optical fiber. Employing a weakly guiding step-index fiber approach, we have built an analytical expression for the spatial distribution of the sound field amplitude in the fiber core and explored the features of SBS gain spectra, describing the interaction between modes of different orders. In this way, we give a clear insight into the sound propagation effects accompanying SBS in multimode optical fibers, and demonstrate their specific contributions to the SBS gain spectrum.
Disciplines :
Electrical & electronics engineering
Physics
Author, co-author :
Fotiadi, Andrei  ;  Université de Mons - UMONS ; Optoelectronics and Measurement Techniques Unit, University of Oulu, 90570 Oulu, Finland
Rafailov, Edik ;  Optoelectronics and Biomedical Photonics Group, School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
Korobko, Dmitry;  S.P. Kapitsa Scientific Technological Research Institute, Ulyanovsk State University, 42 Leo Tolstoy Str., 432970 Ulyanovsk, Russia
MEGRET, Patrice  ;  Université de Mons - UMONS > Faculté Polytechnique > Service d'Electromagnétisme et Télécommunications
Bykov, Alexander;  Optoelectronics and Measurement Techniques Unit, University of Oulu, 90570 Oulu, Finland
Meglinski, Igor ;  Optoelectronics and Measurement Techniques Unit, University of Oulu, 90570 Oulu, Finland ; Optoelectronics and Biomedical Photonics Group, School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
Language :
English
Title :
Brillouin Interaction between Two Optical Modes Selectively Excited in Weakly Guiding Multimode Optical Fibers
Publication date :
03 February 2023
Journal title :
Sensors
ISSN :
1424-8220
eISSN :
1424-3210
Publisher :
MDPI AG
Volume :
23
Issue :
3
Pages :
1715
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
F108 - Electromagnétisme et Télécommunications
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
European Projects :
H2020 - 101028712 - HiFi Brilliancy - HIgh-speed FIbre-based BRILLouIn ANalyzer for endosCopY
Funders :
European Union
Russian Science Foundation
Engineering and Physical Sciences Research Council
Ministry of Science and Higher Education of the Russian Federation
Union Européenne
Funding number :
H2020-MSCA-IF-2020, #101028712
Available on ORBi UMONS :
since 07 February 2023

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