Novel scanning method for distortion-free BOTDA measurements
Systematic errors induced by distortions in the pump pulse of conventional Brillouin distributed fiber sensors are thoroughly investigated. Experimental results, supported by a theoretical analysis, demonstrate that the two probe sidebands in standard Brillouin optical time-domain analyzers provide...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universidad de Alcalá (UAH) |
| Repositorio: | e_Buah Biblioteca Digital Universidad de Alcalá |
| Idioma: | inglés |
| OAI Identifier: | oai:ebuah.uah.es:10017/26277 |
| Acceso en línea: | http://hdl.handle.net/10017/26277 |
| Access Level: | acceso abierto |
| Palabra clave: | Fiber optics sensors Scattering Nonlinear optics Stimulated Brillouin Fibers Ciencias tecnológicas Electrónica Technology Electronics |
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Novel scanning method for distortion-free BOTDA measurementsDomínguez López, Alejandro|||0000-0001-6065-6106Zhisheng, YangSoto Hernández, Marcelo AlfonsoAngulo Vinuesa, XabierMartín López, Sonia|||0000-0001-5203-6206Thévenaz, LucGonzález Herráez, Miguel|||0000-0003-2555-2971Fiber optics sensorsScatteringNonlinear opticsStimulated BrillouinFibersCiencias tecnológicasElectrónicaTechnologyElectronicsSystematic errors induced by distortions in the pump pulse of conventional Brillouin distributed fiber sensors are thoroughly investigated. Experimental results, supported by a theoretical analysis, demonstrate that the two probe sidebands in standard Brillouin optical time-domain analyzers provide a non-zero net gain on the pump pulse, inducing severe distortions of the pump when scanning the pump-probe frequency offset, especially at high probe power levels. Compared to the impact of non-local effects reported in the state-of-the-art, measurements here indicate that for probe powers in the mW range (below the onset of amplified spontaneous Brillouin scattering), the obtained gain and loss spectra show two strong side-lobes that lead to significant strain/temperature errors. This phenomenon is not related to the well-known spectral hole burning resulting from pump depletion, but it is strictly related to the temporal and spectral distortions that the pump pulse experiences when scanning the Brillouin gain/loss spectrum. As a solution to this problem, a novel scanning scheme for Brillouin sensing is proposed. The method relies on a fixed frequency separation between the two probe sidebands, so that a flat zero net gain is achieved on the pump pulse when scanning the pump-probe frequency offset. The proposed technique is experimentally validated, demonstrating its ability to completely cancel out non-local effects up to a probe power ultimately limited by the onset of amplified spontaneous Brillouin scattering. The method allows for one order of magnitude improvement in the figure-of-merit of optimized long-range Brillouin distributed fiber sensors, enabling measurements along a 100 km-long sensing fiber with 2 m spatial resolution and with no need of added features for performance enhancement.European CommissionMinisterio de Economía y CompetitividadComunidad de MadridOptical Society of America20162016-05-02journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10017/26277reponame:e_Buah Biblioteca Digital Universidad de Alcaláinstname:Universidad de Alcalá (UAH)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 Not available TEC2013-45265-R DETECCION TEMPRANA DE AMENAZAS PARA INFRAESTRUCTURAS CRITICAS USANDO SISTEMAS DISTRIBUIDOS DE FIBRA OPTICAComunidad de Madrid http://dx.doi.org/10.13039/100012818 Not available S2009%2FMIT2790 Sensores e INstrumentación en tecnologías FOTÓNicasEuropean Commission http://dx.doi.org/10.13039/501100000780 Seventh Framework Programme 307441 Ubiquitous optical FIbre NErvesopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ebuah.uah.es:10017/262772026-06-18T11:13:07Z |
| dc.title.none.fl_str_mv |
Novel scanning method for distortion-free BOTDA measurements |
| title |
Novel scanning method for distortion-free BOTDA measurements |
| spellingShingle |
Novel scanning method for distortion-free BOTDA measurements Domínguez López, Alejandro|||0000-0001-6065-6106 Fiber optics sensors Scattering Nonlinear optics Stimulated Brillouin Fibers Ciencias tecnológicas Electrónica Technology Electronics |
| title_short |
Novel scanning method for distortion-free BOTDA measurements |
| title_full |
Novel scanning method for distortion-free BOTDA measurements |
| title_fullStr |
Novel scanning method for distortion-free BOTDA measurements |
| title_full_unstemmed |
Novel scanning method for distortion-free BOTDA measurements |
| title_sort |
Novel scanning method for distortion-free BOTDA measurements |
| dc.creator.none.fl_str_mv |
Domínguez López, Alejandro|||0000-0001-6065-6106 Zhisheng, Yang Soto Hernández, Marcelo Alfonso Angulo Vinuesa, Xabier Martín López, Sonia|||0000-0001-5203-6206 Thévenaz, Luc González Herráez, Miguel|||0000-0003-2555-2971 |
| author |
Domínguez López, Alejandro|||0000-0001-6065-6106 |
| author_facet |
Domínguez López, Alejandro|||0000-0001-6065-6106 Zhisheng, Yang Soto Hernández, Marcelo Alfonso Angulo Vinuesa, Xabier Martín López, Sonia|||0000-0001-5203-6206 Thévenaz, Luc González Herráez, Miguel|||0000-0003-2555-2971 |
| author_role |
author |
| author2 |
Zhisheng, Yang Soto Hernández, Marcelo Alfonso Angulo Vinuesa, Xabier Martín López, Sonia|||0000-0001-5203-6206 Thévenaz, Luc González Herráez, Miguel|||0000-0003-2555-2971 |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
Fiber optics sensors Scattering Nonlinear optics Stimulated Brillouin Fibers Ciencias tecnológicas Electrónica Technology Electronics |
| topic |
Fiber optics sensors Scattering Nonlinear optics Stimulated Brillouin Fibers Ciencias tecnológicas Electrónica Technology Electronics |
| description |
Systematic errors induced by distortions in the pump pulse of conventional Brillouin distributed fiber sensors are thoroughly investigated. Experimental results, supported by a theoretical analysis, demonstrate that the two probe sidebands in standard Brillouin optical time-domain analyzers provide a non-zero net gain on the pump pulse, inducing severe distortions of the pump when scanning the pump-probe frequency offset, especially at high probe power levels. Compared to the impact of non-local effects reported in the state-of-the-art, measurements here indicate that for probe powers in the mW range (below the onset of amplified spontaneous Brillouin scattering), the obtained gain and loss spectra show two strong side-lobes that lead to significant strain/temperature errors. This phenomenon is not related to the well-known spectral hole burning resulting from pump depletion, but it is strictly related to the temporal and spectral distortions that the pump pulse experiences when scanning the Brillouin gain/loss spectrum. As a solution to this problem, a novel scanning scheme for Brillouin sensing is proposed. The method relies on a fixed frequency separation between the two probe sidebands, so that a flat zero net gain is achieved on the pump pulse when scanning the pump-probe frequency offset. The proposed technique is experimentally validated, demonstrating its ability to completely cancel out non-local effects up to a probe power ultimately limited by the onset of amplified spontaneous Brillouin scattering. The method allows for one order of magnitude improvement in the figure-of-merit of optimized long-range Brillouin distributed fiber sensors, enabling measurements along a 100 km-long sensing fiber with 2 m spatial resolution and with no need of added features for performance enhancement. |
| publishDate |
2016 |
| dc.date.none.fl_str_mv |
2016 2016-05-02 |
| 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/10017/26277 |
| url |
http://hdl.handle.net/10017/26277 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.relation.none.fl_str_mv |
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 Not available TEC2013-45265-R DETECCION TEMPRANA DE AMENAZAS PARA INFRAESTRUCTURAS CRITICAS USANDO SISTEMAS DISTRIBUIDOS DE FIBRA OPTICA Comunidad de Madrid http://dx.doi.org/10.13039/100012818 Not available S2009%2FMIT2790 Sensores e INstrumentación en tecnologías FOTÓNicas European Commission http://dx.doi.org/10.13039/501100000780 Seventh Framework Programme 307441 Ubiquitous optical FIbre NErves |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| 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 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| eu_rights_str_mv |
openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Optical Society of America |
| publisher.none.fl_str_mv |
Optical Society of America |
| dc.source.none.fl_str_mv |
reponame:e_Buah Biblioteca Digital Universidad de Alcalá instname:Universidad de Alcalá (UAH) |
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Universidad de Alcalá (UAH) |
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e_Buah Biblioteca Digital Universidad de Alcalá |
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e_Buah Biblioteca Digital Universidad de Alcalá |
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15.301603 |