Millimetric spatial resolution time-expanded ϕ-OTDR
Time-expanded phase-sensitive optical time-domain reflectometry is a distributed optical fiber sensing technology based on dual-frequency combs that allows for dynamic and high spatial resolution measurements while maintaining reduced detection requirements. Since the formalization of the technique,...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2023-10-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0150991 |
| _version_ | 1797634132719697920 |
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| author | Miguel Soriano-Amat Philippe Guay Hugo F. Martins Sonia Martin-Lopez Miguel Gonzalez-Herraez María R. Fernández-Ruiz Jerome Genest |
| author_facet | Miguel Soriano-Amat Philippe Guay Hugo F. Martins Sonia Martin-Lopez Miguel Gonzalez-Herraez María R. Fernández-Ruiz Jerome Genest |
| author_sort | Miguel Soriano-Amat |
| collection | DOAJ |
| description | Time-expanded phase-sensitive optical time-domain reflectometry is a distributed optical fiber sensing technology based on dual-frequency combs that allows for dynamic and high spatial resolution measurements while maintaining reduced detection requirements. Since the formalization of the technique, different experimental schemes have been satisfactorily tested, with a general performance of cm-scale spatial resolution over hundreds of meters. In this article, we present an optimized scheme with enhanced energy and spectral efficiencies that allows reaching 5 mm spatial resolution. As compared to previous experimental approaches, the presented architecture is based on a free-running dual comb setup generated through pure electro-optical phase modulation. Besides, the introduction of an optical hybrid in the detection stage allows for doubling the spatial resolution while keeping the refresh rate and the sensing range unchanged. |
| first_indexed | 2024-03-11T12:04:17Z |
| format | Article |
| id | doaj.art-ff6b3b389b2747638ce15689dba0bbb9 |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-03-11T12:04:17Z |
| publishDate | 2023-10-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-ff6b3b389b2747638ce15689dba0bbb92023-11-07T18:01:03ZengAIP Publishing LLCAPL Photonics2378-09672023-10-01810100803100803-810.1063/5.0150991Millimetric spatial resolution time-expanded ϕ-OTDRMiguel Soriano-Amat0Philippe Guay1Hugo F. Martins2Sonia Martin-Lopez3Miguel Gonzalez-Herraez4María R. Fernández-Ruiz5Jerome Genest6Universidad de Alcalá, Grupo de Ingeniería Fotónica, 28805 Madrid, SpainCentre d’optique, photonique et laser, Université Laval, Québec, Québec G1V 0A6, CanadaInstituto de Óptica “Daza de Valdés” IO-CSIC, C/Serrano 121, 28006 Madrid, SpainUniversidad de Alcalá, Grupo de Ingeniería Fotónica, 28805 Madrid, SpainUniversidad de Alcalá, Grupo de Ingeniería Fotónica, 28805 Madrid, SpainUniversidad de Alcalá, Grupo de Ingeniería Fotónica, 28805 Madrid, SpainCentre d’optique, photonique et laser, Université Laval, Québec, Québec G1V 0A6, CanadaTime-expanded phase-sensitive optical time-domain reflectometry is a distributed optical fiber sensing technology based on dual-frequency combs that allows for dynamic and high spatial resolution measurements while maintaining reduced detection requirements. Since the formalization of the technique, different experimental schemes have been satisfactorily tested, with a general performance of cm-scale spatial resolution over hundreds of meters. In this article, we present an optimized scheme with enhanced energy and spectral efficiencies that allows reaching 5 mm spatial resolution. As compared to previous experimental approaches, the presented architecture is based on a free-running dual comb setup generated through pure electro-optical phase modulation. Besides, the introduction of an optical hybrid in the detection stage allows for doubling the spatial resolution while keeping the refresh rate and the sensing range unchanged.http://dx.doi.org/10.1063/5.0150991 |
| spellingShingle | Miguel Soriano-Amat Philippe Guay Hugo F. Martins Sonia Martin-Lopez Miguel Gonzalez-Herraez María R. Fernández-Ruiz Jerome Genest Millimetric spatial resolution time-expanded ϕ-OTDR APL Photonics |
| title | Millimetric spatial resolution time-expanded ϕ-OTDR |
| title_full | Millimetric spatial resolution time-expanded ϕ-OTDR |
| title_fullStr | Millimetric spatial resolution time-expanded ϕ-OTDR |
| title_full_unstemmed | Millimetric spatial resolution time-expanded ϕ-OTDR |
| title_short | Millimetric spatial resolution time-expanded ϕ-OTDR |
| title_sort | millimetric spatial resolution time expanded ϕ otdr |
| url | http://dx.doi.org/10.1063/5.0150991 |
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