dc.contributor.author | Fidalgo Martins, Hugo | |
dc.contributor.author | Shi, K. | |
dc.contributor.author | Thomsen, B.C. | |
dc.contributor.author | Martín López, Sonia | |
dc.contributor.author | González Herráez, Miguel | |
dc.contributor.author | Savory, S.J. | |
dc.date.accessioned | 2017-02-09T08:26:11Z | |
dc.date.available | 2017-02-09T08:26:11Z | |
dc.date.issued | 2016-09-19 | |
dc.identifier.bibliographicCitation | H. F. Martins, K. Shi, B. C. Thomsen, S. Martin-Lopez, M. Gonzalez-Herraez, and S. J. Savory, "Real time dynamic strain monitoring of optical links using the backreflection of live PSK data," Opt. Express 24, 22303-22318 (2016). | |
dc.identifier.uri | http://hdl.handle.net/10017/28237 | |
dc.description.abstract | A major cause of faults in optical communication links is related to unintentional
third party intrusions (normally related to civil/agricultural works) causing fiber breaks or
cable damage. These intrusions could be anticipated and avoided by monitoring the dynamic
strain recorded along the cable. In this work, a novel technique is proposed to implement realtime
distributed strain sensing in parallel with an operating optical communication channel.
The technique relies on monitoring the Rayleigh backscattered light from optical
communication data transmitted using standard modulation formats. The system is treated as a
phase-sensitive OTDR (ΦOTDR) using random and non-periodical non-return-to-zero (NRZ)
phase-shift keying (PSK) pulse coding. An I/Q detection unit allows for a full (amplitude,
phase and polarization) characterization of the backscattered optical signal, thus achieving a
fully linear system in terms of ΦOTDR trace coding/decoding. The technique can be used
with different modulation formats, and operation using 4 Gbaud single-polarization dual PSK
and 4 Gbaud dual-polarization quadrature PSK is demonstrated. As a proof of concept,
distributed sensing of dynamic strain with a sampling of 125 kHz and a spatial resolution of
2.5 cm (set by the bit size) over 500 m is demonstrated for applied sinusoidal strain signals of
500 Hz. The limitations and possibilities for improvement of the technique are also discussed. | en |
dc.description.sponsorship | European Commission | en |
dc.description.sponsorship | Ministerio de Economía y Competitividad | es_ES |
dc.description.sponsorship | Comunidad de Madrid | es_ES |
dc.description.sponsorship | Engineering and Physical Sciences Research Council | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | Optical Society of America | en |
dc.rights | Attribution Creative Commons Non Commercial No Derivatives 3.0 CC-BY-NC-ND-3.0 | * |
dc.rights | (c) Optical Society of America, 2016 | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | All-optical networks | en |
dc.subject | Coherent communications | en |
dc.subject | Fiber optics communications | en |
dc.subject | Fiber optics sensors | en |
dc.subject | Scattering | en |
dc.subject | Rayleigh | en |
dc.title | Real time dynamic strain monitoring of optical links using the backreflection of live PSK data | en |
dc.type | info:eu-repo/semantics/article | en |
dc.subject.eciencia | Ciencias tecnológicas | es_ES |
dc.subject.eciencia | Electrónica | es_ES |
dc.subject.eciencia | Technology | en |
dc.subject.eciencia | Electronics | en |
dc.contributor.affiliation | Universidad de Alcalá. Departamento de Electrónica | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1364/OE.24.022303 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | en |
dc.identifier.doi | 10.1364/OE.24.022303 | |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/307441/EU/Ubiquitous optical FIbre NErves/U-FINE | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//TEC2013-45265-R/ES/DETECCION TEMPRANA DE AMENAZAS PARA INFRAESTRUCTURAS CRITICAS USANDO SISTEMAS DISTRIBUIDOS DE FIBRA OPTICA/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/CAM//S2009%2FMIT2790/ES/Sensores e INstrumentación en tecnologías FOTÓNicas/SINFOTON | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/608099/EU/Allied Initiative for Training and Education in Coherent Optical Networks/ICONE | en |
dc.relation.projectID | info:eu-repo/grantAgreement/EPSRC//EP%2FJ008842%2F1/UK/Exploiting the bandwidth potential of multimode optical fibres | en |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |