Sidelobe apodization in optical pulse compression reflectometry for fiber optic distributed acoustic sensing
Identificadores
Enlace permanente (URI): http://hdl.handle.net/10017/33079DOI: 10.1364/OL.43.001499
ISSN: 0146-9592
Editor
Optical Society of America
Fecha de publicación
2018-04Patrocinadores
European Commission
Ministerio de Economía y Competitividad
Comunidad de Madrid
Cita bibliográfica
Mompó, J.J, Martín-López, S., González-Herráez, Loayssa, A. "Sidelobe apodization in optical pulse compression reflectometry for fiber optic distributed acoustic sensing". Optics Letters. 2018, 43, (7), pp. 1499-1502.
Palabras clave
Remote sensing and sensors
Fiber optics sensors
Scattering
Rayleigh
Optical time domain reflectometry
Pulse compression
Proyectos
info:eu-repo/grantAgreement/MINECO//TEC2013-45265-R/ES/DETECCION TEMPRANA DE AMENAZAS PARA INFRAESTRUCTURAS CRITICAS USANDO SISTEMAS DISTRIBUIDOS DE FIBRA OPTICA/
info:eu-repo/grantAgreement/MINECO//TEC2013-47264-C2-2-R/ES/SENSORES DE FIBRA OPTICA PARA SEGURIDAD Y PROTECCION/
info:eu-repo/grantAgreement/MINECO//BES-2015-076021/ES/BES-2015-076021/
info:eu-repo/grantAgreement/MINECO//TEC2015-71127-C2-2-R/ES/REDUCCION DE LOS EFECTOS DE RUIDO EN SISTEMAS DE FIBRA OPTICA NO LINEALES/
info:eu-repo/grantAgreement/EC/FP7/307441/EU/Ubiquitous optical FIbre NErves/U-FINE
info:eu-repo/grantAgreement/CAM//S2009%2FMIT2790/ES/Sensores e INstrumentación en tecnologías FOTÓNicas/SINFOTON
info:eu-repo/grantAgreement/EC/H2020/722509/EU/Fibre Nervous Sensing Systems/FINESSE
Tipo de documento
info:eu-repo/semantics/article
Versión
info:eu-repo/semantics/acceptedVersion
Versión del editor
https://doi.org/10.1364/OL.43.001499Derechos
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
(c) Optical Society of America, 2018
Derechos de acceso
info:eu-repo/semantics/openAccess
Resumen
We demonstrate a technique to reduce the sidelobes in optical
pulse compression reflectometry for distributed acoustic
sensing. The technique is based on using a Gaussian
probe pulse with linear frequency modulation. This is
shown to improve the sidelobe suppression by 13 dB compared
to the use of square pulses without any significant
penalty in terms of spatial resolution. In addition, a 2.25 dB
enhancement in signal-to-noise ratio is calculated compared
to the use of receiver-side windowing. The method is tested
by measuring 700 Hz vibrations with a 140 nϵ amplitude
at the end of a 50 km fiber sensing link with 34 cm spatial
resolution, giving a record 147,058 spatially resolved
points.
Ficheros en el ítem
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