SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging

A recent advancement in distributed sensing known as the time-expanded phase-sensitive optical time-domain reflectometry (TE Φ-OTDR) addresses the trade-off between spatial resolution and detection bandwidth, enabling centimeter-scale resolution alongside RF detection bandwidth in the order of MHz....

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Autores: Sasikumar, Neethu, Soriano Amat, Miguel|||0000-0002-4819-3898, Srinivasan, Balaji, Martín López, Sonia|||0000-0001-5203-6206, González Herráez, Miguel|||0000-0003-2555-2971, Fernández Ruiz, María del Rosario|||0000-0003-3561-2405
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universidad de Alcalá (UAH)
Repositorio:e_Buah Biblioteca Digital Universidad de Alcalá
Idioma:inglés
OAI Identifier:oai:ebuah.uah.es:10017/65144
Acceso en línea:http://hdl.handle.net/10017/65144
https://dx.doi.org/10.1364/OL.543115
Access Level:acceso abierto
Palabra clave:Electrónica
Electronics
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repository_id_str
spelling SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averagingSasikumar, NeethuSoriano Amat, Miguel|||0000-0002-4819-3898Srinivasan, BalajiMartín López, Sonia|||0000-0001-5203-6206González Herráez, Miguel|||0000-0003-2555-2971Fernández Ruiz, María del Rosario|||0000-0003-3561-2405ElectrónicaElectronicsA recent advancement in distributed sensing known as the time-expanded phase-sensitive optical time-domain reflectometry (TE Φ-OTDR) addresses the trade-off between spatial resolution and detection bandwidth, enabling centimeter-scale resolution alongside RF detection bandwidth in the order of MHz. To date, TE Φ-OTDR approaches extract the fiber response from the first Nyquist zone (NZ). In this Letter, we propose a post-processing strategy to enhance the SNR by spectrally averaging different NZs. By evaluating 200 NZs, we have improved the average SNR of the traces by 23.56 dB compared to the standard demodulation scheme without degrading the acoustic sampling and the spatial resolution.Ministerio de Ciencia e InnovaciónAgencia Estatal de InvestigaciónEuropean CommissionOptica Publishing Group20252025-01-0220252025-01-0220262026-01-02journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10017/65144https://dx.doi.org/10.1364/OL.543115reponame:e_Buah Biblioteca Digital Universidad de Alcaláinstname:Universidad de Alcalá (UAH)InglésengMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 Not available RYC2021-032167-IMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 Not available PLEC2021-007875 SISTEMA DE MONITORIZACION PARA LA PROTECCION Y MANTENIMIENTO PREDICTIVO DE INFRAESTRUCTURAS DE CABLE SUBMARINOAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023 CPP2021-008869 TECNOLOGIAS FOTONICAS MAS RENTABLES PARA LA MONITORIZACION REMOTA DE LA SISMICIDAD EN ALMACENES GEOLOGICOS DE ZONAS MARINAS PARA LA TRANSICION ENERGETICAMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023 PID2021-128000OB-C21Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2022-140963OA-I00 SONDAS PARA INSTRUMENTACION INTELIGENTE BASADAS EN SENSADO ACUSTICO DISTRIBUIDO DE TIEMPO EXPANDIDOEuropean Commission http://dx.doi.org/10.13039/501100000780 Horizon Europe Framework Programme 101098992 Tsunami early warning System using Availableseafloor Fiber cablEsEuropean Commission http://dx.doi.org/10.13039/501100000780 Horizon Europe Framework Programme 101095055 SUBMarine cablEs for ReSearch and ExplorationAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PCI2023-145978-2 INDUSTRIAL UPSCALE OF SURFACE PROTECTION SYSTEM AND FIBRE OPTIC-BASED CONDITION MONITORING FOR THE SEASNAKE MVC (MEDIUM VOLTAGE CABLES)open accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:ebuah.uah.es:10017/651442026-06-18T11:13:07Z
dc.title.none.fl_str_mv SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging
title SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging
spellingShingle SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging
Sasikumar, Neethu
Electrónica
Electronics
title_short SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging
title_full SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging
title_fullStr SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging
title_full_unstemmed SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging
title_sort SNR improvement in time-expanded phase-sensitive OTDR using Nyquist zone averaging
dc.creator.none.fl_str_mv Sasikumar, Neethu
Soriano Amat, Miguel|||0000-0002-4819-3898
Srinivasan, Balaji
Martín López, Sonia|||0000-0001-5203-6206
González Herráez, Miguel|||0000-0003-2555-2971
Fernández Ruiz, María del Rosario|||0000-0003-3561-2405
author Sasikumar, Neethu
author_facet Sasikumar, Neethu
Soriano Amat, Miguel|||0000-0002-4819-3898
Srinivasan, Balaji
Martín López, Sonia|||0000-0001-5203-6206
González Herráez, Miguel|||0000-0003-2555-2971
Fernández Ruiz, María del Rosario|||0000-0003-3561-2405
author_role author
author2 Soriano Amat, Miguel|||0000-0002-4819-3898
Srinivasan, Balaji
Martín López, Sonia|||0000-0001-5203-6206
González Herráez, Miguel|||0000-0003-2555-2971
Fernández Ruiz, María del Rosario|||0000-0003-3561-2405
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Electrónica
Electronics
topic Electrónica
Electronics
description A recent advancement in distributed sensing known as the time-expanded phase-sensitive optical time-domain reflectometry (TE Φ-OTDR) addresses the trade-off between spatial resolution and detection bandwidth, enabling centimeter-scale resolution alongside RF detection bandwidth in the order of MHz. To date, TE Φ-OTDR approaches extract the fiber response from the first Nyquist zone (NZ). In this Letter, we propose a post-processing strategy to enhance the SNR by spectrally averaging different NZs. By evaluating 200 NZs, we have improved the average SNR of the traces by 23.56 dB compared to the standard demodulation scheme without degrading the acoustic sampling and the spatial resolution.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-01-02
2025
2025-01-02
2026
2026-01-02
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10017/65144
https://dx.doi.org/10.1364/OL.543115
url http://hdl.handle.net/10017/65144
https://dx.doi.org/10.1364/OL.543115
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 Not available RYC2021-032167-I
Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 Not available PLEC2021-007875 SISTEMA DE MONITORIZACION PARA LA PROTECCION Y MANTENIMIENTO PREDICTIVO DE INFRAESTRUCTURAS DE CABLE SUBMARINO
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023 CPP2021-008869 TECNOLOGIAS FOTONICAS MAS RENTABLES PARA LA MONITORIZACION REMOTA DE LA SISMICIDAD EN ALMACENES GEOLOGICOS DE ZONAS MARINAS PARA LA TRANSICION ENERGETICA
Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023 PID2021-128000OB-C21
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2022-140963OA-I00 SONDAS PARA INSTRUMENTACION INTELIGENTE BASADAS EN SENSADO ACUSTICO DISTRIBUIDO DE TIEMPO EXPANDIDO
European Commission http://dx.doi.org/10.13039/501100000780 Horizon Europe Framework Programme 101098992 Tsunami early warning System using Availableseafloor Fiber cablEs
European Commission http://dx.doi.org/10.13039/501100000780 Horizon Europe Framework Programme 101095055 SUBMarine cablEs for ReSearch and Exploration
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PCI2023-145978-2 INDUSTRIAL UPSCALE OF SURFACE PROTECTION SYSTEM AND FIBRE OPTIC-BASED CONDITION MONITORING FOR THE SEASNAKE MVC (MEDIUM VOLTAGE CABLES)
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Optica Publishing Group
publisher.none.fl_str_mv Optica Publishing Group
dc.source.none.fl_str_mv reponame:e_Buah Biblioteca Digital Universidad de Alcalá
instname:Universidad de Alcalá (UAH)
instname_str Universidad de Alcalá (UAH)
reponame_str e_Buah Biblioteca Digital Universidad de Alcalá
collection e_Buah Biblioteca Digital Universidad de Alcalá
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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