Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/12517
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dc.contributor.authorKeskin, Mehmet Ziya-
dc.contributor.authorYentur, Abdulkadir-
dc.contributor.authorOzdur, Ibrahim-
dc.date.accessioned2025-06-11T20:40:59Z-
dc.date.available2025-06-11T20:40:59Z-
dc.date.issued2025-
dc.identifier.issn1424-8220-
dc.identifier.urihttps://doi.org/10.3390/s25092873-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/12517-
dc.description.abstractAcoustic sensing has many applications in engineering, one of which is fiber-optic hydrophones (FOHs). Conventional piezoelectric hydrophones face limitations related to size, electromagnetic interference, corrosion, and narrow operating bandwidth. Fiber-optic hydrophones, particularly those employing distributed feedback (DFB) lasers, offer a compelling alternative due to their mechanical flexibility, resistance to harsh conditions, and broad detection range. DFB lasers are highly sensitive to external perturbations such as temperature and strain, enabling the precise detection of underwater acoustic signals by monitoring the resultant shifts in lasing wavelength. This paper presents an enhanced interrogation mechanism that leverages Mach-Zehnder interferometers to translate wavelength shifts into measurable phase deviations, thereby providing cost-effective and high-resolution phase-based measurements. A dual interferometric setup is integrated with a standard demodulation algorithm to extend the dynamic range of these sensing systems. The experimental results demonstrate a substantial improvement in performance, with the dynamic range increasing from 125 dB to 139 dB at 1 kHz without degrading the noise floor. This enhancement significantly expands the utility of FOH-based systems in underwater environments, supporting applications such as underwater surveillance, submarine communication, and marine ecosystem monitoring.en_US
dc.language.isoenen_US
dc.publisherMdpien_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAcoustic Sensingen_US
dc.subjectFiber Lasersen_US
dc.subjectFiber-Optic Sensorsen_US
dc.subjectHydrophonesen_US
dc.subjectInterferometersen_US
dc.titleDual Interferometric Interrogation for Dfb Laser-Based Acoustic Sensingen_US
dc.typeArticleen_US
dc.departmentTOBB University of Economics and Technologyen_US
dc.identifier.volume25en_US
dc.identifier.issue9en_US
dc.identifier.wosWOS:001486697300001-
dc.identifier.scopus2-s2.0-105004882701-
dc.identifier.pmid40363311-
dc.identifier.doi10.3390/s25092873-
dc.authorscopusid57912824900-
dc.authorscopusid59035039800-
dc.authorscopusid16029503000-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ2-
dc.identifier.wosqualityQ2-
dc.description.woscitationindexScience Citation Index Expanded-
item.fulltextNo Fulltext-
item.grantfulltextnone-
item.languageiso639-1en-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.author.dept02.5. Department of Electrical and Electronics Engineering-
Appears in Collections:PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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