Polarization fading mitigation in distributed acoustic sensors based on a high-speed polarization rotator
Polarization fading mitigation in distributed acoustic sensors based on a high-speed polarization rotator
A distributed optical fiber acoustic sensor based on interferometric demodulation technique with no polarization fading is demonstrated. A polarization diversity scheme based on a high-speed polarization rotator is used to eliminate signal fading due to polarization mismatch in the Rayleigh backscattered signal between adjacent points on the sensing fiber. This technique yields a spatially uniform response to the applied strain. The sensor exhibited spatial and strain resolutions of <4 m and <7 nϵ, respectively.
1283-1286
Bakhtiari Gorajoobi, Shahab
ba37e5f9-6a5e-4beb-82eb-b932613fba55
Masoudi, Ali
8073fb9b-2e6c-46c9-89cf-cb8670d76dc0
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
28 February 2022
Bakhtiari Gorajoobi, Shahab
ba37e5f9-6a5e-4beb-82eb-b932613fba55
Masoudi, Ali
8073fb9b-2e6c-46c9-89cf-cb8670d76dc0
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Bakhtiari Gorajoobi, Shahab, Masoudi, Ali and Brambilla, Gilberto
(2022)
Polarization fading mitigation in distributed acoustic sensors based on a high-speed polarization rotator.
Optics Letters, 47 (5), .
(doi:10.1364/OL.450388).
Abstract
A distributed optical fiber acoustic sensor based on interferometric demodulation technique with no polarization fading is demonstrated. A polarization diversity scheme based on a high-speed polarization rotator is used to eliminate signal fading due to polarization mismatch in the Rayleigh backscattered signal between adjacent points on the sensing fiber. This technique yields a spatially uniform response to the applied strain. The sensor exhibited spatial and strain resolutions of <4 m and <7 nϵ, respectively.
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- Accepted Manuscript
More information
Accepted/In Press date: 11 January 2022
e-pub ahead of print date: 12 January 2022
Published date: 28 February 2022
Additional Information:
Funding Information:
Natural Environment Research Council (NE/S012877/1, NE/T005890/1); Royal Society (CHL/R1/180350).
Publisher Copyright:
© 2022 Optica Publishing Group.
Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.
Identifiers
Local EPrints ID: 454578
URI: http://eprints.soton.ac.uk/id/eprint/454578
ISSN: 0146-9592
PURE UUID: 8b5a06e8-9e35-421f-8286-92858bc46c80
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Date deposited: 16 Feb 2022 17:43
Last modified: 17 Mar 2024 03:25
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Author:
Shahab Bakhtiari Gorajoobi
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