Simplified setup for Brillouin scattering observation using variable reflectivity mirror and its polarisation characteristics

Abstract The authors present a streamlined setup for Brillouin scattering observation, which negates the need for an independent reference path by incorporating a variable reflectivity mirror at the terminus of the sensing fibre. The authors’ study uncovers an optimal reflectivity point, specificall...

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Main Authors: Haruki Sasage, Kentaro Nakamura, Yosuke Mizuno, Heeyoung Lee
Format: Article
Language:English
Published: Wiley 2023-12-01
Series:Electronics Letters
Subjects:
Online Access:https://doi.org/10.1049/ell2.13053
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author Haruki Sasage
Kentaro Nakamura
Yosuke Mizuno
Heeyoung Lee
author_facet Haruki Sasage
Kentaro Nakamura
Yosuke Mizuno
Heeyoung Lee
author_sort Haruki Sasage
collection DOAJ
description Abstract The authors present a streamlined setup for Brillouin scattering observation, which negates the need for an independent reference path by incorporating a variable reflectivity mirror at the terminus of the sensing fibre. The authors’ study uncovers an optimal reflectivity point, specifically at −9 dB, where the signal‐to‐noise ratio (SNR) of the observed Brillouin gain spectrum (BGS) reaches its zenith, approximately doubling the SNR of a conventional simplified setup that utilises Fresnel reflection. Furthermore, the authors elucidate that this setup inherently mitigates the polarisation‐dependent fluctuations of the BGS.
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spelling doaj.art-3560ea0fd4ad478ab4a1507f782955532024-01-08T08:30:54ZengWileyElectronics Letters0013-51941350-911X2023-12-015924n/an/a10.1049/ell2.13053Simplified setup for Brillouin scattering observation using variable reflectivity mirror and its polarisation characteristicsHaruki Sasage0Kentaro Nakamura1Yosuke Mizuno2Heeyoung Lee3Graduate School of Engineering and Science Shibaura Institute of Technology Tokyo JapanInstitute of Innovative Research Tokyo Institute of Technology Yokohama JapanFaculty of Engineering Yokohama National University Yokohama JapanGraduate School of Engineering and Science Shibaura Institute of Technology Tokyo JapanAbstract The authors present a streamlined setup for Brillouin scattering observation, which negates the need for an independent reference path by incorporating a variable reflectivity mirror at the terminus of the sensing fibre. The authors’ study uncovers an optimal reflectivity point, specifically at −9 dB, where the signal‐to‐noise ratio (SNR) of the observed Brillouin gain spectrum (BGS) reaches its zenith, approximately doubling the SNR of a conventional simplified setup that utilises Fresnel reflection. Furthermore, the authors elucidate that this setup inherently mitigates the polarisation‐dependent fluctuations of the BGS.https://doi.org/10.1049/ell2.13053Brillouin gain spectraoptical fibresreflectometers
spellingShingle Haruki Sasage
Kentaro Nakamura
Yosuke Mizuno
Heeyoung Lee
Simplified setup for Brillouin scattering observation using variable reflectivity mirror and its polarisation characteristics
Electronics Letters
Brillouin gain spectra
optical fibres
reflectometers
title Simplified setup for Brillouin scattering observation using variable reflectivity mirror and its polarisation characteristics
title_full Simplified setup for Brillouin scattering observation using variable reflectivity mirror and its polarisation characteristics
title_fullStr Simplified setup for Brillouin scattering observation using variable reflectivity mirror and its polarisation characteristics
title_full_unstemmed Simplified setup for Brillouin scattering observation using variable reflectivity mirror and its polarisation characteristics
title_short Simplified setup for Brillouin scattering observation using variable reflectivity mirror and its polarisation characteristics
title_sort simplified setup for brillouin scattering observation using variable reflectivity mirror and its polarisation characteristics
topic Brillouin gain spectra
optical fibres
reflectometers
url https://doi.org/10.1049/ell2.13053
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AT yosukemizuno simplifiedsetupforbrillouinscatteringobservationusingvariablereflectivitymirroranditspolarisationcharacteristics
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