Quadratic phase coding for SNR improvement in time-expanded phase-sensitive OTDR
Authors
Soriano Amat, Miguel; Fidalgo Martins, Hugo; Durán, Vicente; Martín López, Sonia; González Herráez, Miguel; [et al.]Identifiers
Permanent link (URI): http://hdl.handle.net/10017/58205DOI: 10.1364/OL.432350
ISSN: 0146-9592
Publisher
OSA
Date
2021-09-01Funders
Comunidad de Madrid
Generalitat Valenciana
European Commission
Agencia Estatal de Investigación
Universitat Jaume I
Ministerio de Ciencia e Innovación
Bibliographic citation
Soriano Amat, M., Martins H.F., Durán, V., Martín López, S., González Herráez, M. & Fernández Ruiz, M.R. 2021, "Quadratic phase coding for SNR improvement in time-expanded phase-sensitive OTDR", Optics Letters, vol. 46, no. 17, pp. 4406-4409.
Description / Notes
M.S.A., H.F.M., V.D., and M.R.F.R. acknowledge financial support from the Spanish MICINN under contract no. PRE-2019–087444, IJCI-2017–33856, RYC-201723668, and IJC2018–035684-I, respectively.
Project
info:eu-repo/grantAgreement/CAM//S2018%2FNMT4326/ES/SENSORES E INSTRUMENTACION EN TECNOLOGIAS FOTONICAS2/SINFOTON2
info:eu-repo/grantAgreement/GVA//PROMETEO%2F2020%2F029
info:eu-repo/grantAgreement/EC/H2020/875302/EU/OCEAN-BOTTOM DISTRIBUTED ACOUSTIC SENSORS: NEW TOOLS FOR UNDERWATER SEISMOLOGY/OCEAN-DAS
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097957-B-C31/ES/INGENIERIA DE SEÑALES OPTICAS COMPLEJAS PARA SISTEMAS DE FIBRA OPTICA MAS ALLA DE LA TELECOMUNICACION/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097957-B-C32/ES/INGENIERIA DE PEINES DE FRECUENCIA DE BAJO COSTE PARA APLICACIONES DE SENSADO DISTRIBUIDO, ESPECTROSCOPIA Y METROLOGIA/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097957-B-C33/ES/TECNICAS AVANZADAS DE GENERACION, AMPLIFICACION Y MEDIDA DE SEÑALES OPTICAS COMPLEJAS EN FIBRA OPTICA/
info:eu-repo/grantAgreement/UJI//UJI-B2019-45/ES/Fiber-optic distributed sensing using ultra-dense frequency combs generated from continuous-wave lasers/
info:eu-repo/grantAgreement/MICINN//IJC2018–035684-I
info:eu-repo/grantAgreement/MICINN//PRE-2019-087444
info:eu-repo/grantAgreement/MICINN//RYC-2017-23668
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/acceptedVersion
Publisher's version
https://doi.org/10.1364/OL.432350Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
© 2021 Optical Society of America
Access rights
info:eu-repo/semantics/openAccess
Abstract
Time-expanded phase-sensitive optical time-domain reflectometry (TE−ΦOTDR
) is a dual-comb-based distributed optical fiber sensing technique capable of providing centimeter scale resolution while maintaining a remarkably low (MHz) detection bandwidth. Random spectral phase coding of the dual combs involved in the fiber interrogation process has been proposed as a means of increasing the signal-to-noise ratio (SNR) of the sensor. In this Letter, we present a specific spectral phase coding methodology capable of further enlarging the SNR of TE−ΦOTDR
. This approach is based on the use of a quadratic spectral phase to precisely control the peak power of the comb signals. As a result, an SNR improvement of up to 8 dB has been experimentally attained with respect to that based on the random phase coding previously reported.
Files in this item
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Quadratic_Soriano_Opt_Lett_2021.pdf | 2.076Mb |
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Quadratic_Soriano_Opt_Lett_2021.pdf | 2.076Mb |
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