Fully distributed optical fiber strain sensor with 10−12ε/√Hz sensitivity
Autores
Pereira da Costa, Luis Duarte; Fidalgo Martins, Hugo; Martín López, Sonia; Fernández Ruiz, María del Rosario; González Herráez, MiguelIdentificadores
Enlace permanente (URI): http://hdl.handle.net/10017/39528DOI: 10.1109/JLT.2019.2904560
ISSN: 0733-8724
Fecha de publicación
2019-09-15Patrocinadores
European Commission
Ministerio de Economía y Competitividad
Comunidad de Madrid
Cita bibliográfica
Costa, L., Martins, H. F., Martín-López, S., Fernández-Ruiz, M. R. & González-Herráez, M. 2019, "Fully distributed optical fiber strain sensor with 10−12ε/√Hz sensitivity", JLT, vol. 37, no. 18, pp. 4487-4495
Palabras clave
Chirp modulation
Optical fiber applications
Optical time domain reflectometry
Phase noise
Remote sensing
Strain measurements
Vibration measurements
Proyectos
info:eu-repo/grantAgreement/EC/FP7/307441/EU/Ubiquitous optical FIbre NErves/U-FINE
info:eu-repo/grantAgreement/EC/H2020/722509/EU/Fibre Nervous Sensing Systems/FINESSE
info:eu-repo/grantAgreement/EC/H2020/WaterJPI-JC-2015-04/EU/Dikes and Debris Flows Monitoring by Novel Optical Fiber Sensors/DOMINO
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/CAM//S2009%2FMIT2790/ES/Sensores e INstrumentación en tecnologías FOTÓNicas/SINFOTON
Tipo de documento
info:eu-repo/semantics/article
Versión
info:eu-repo/semantics/acceptedVersion
Derechos
Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
© 2019 IEEE
Derechos de acceso
info:eu-repo/semantics/openAccess
Resumen
Advanced optical fiber reflectometry techniques enable spatially distributed measurements of true relative deformations over the length of a conventional optical fiber cable. This methodology is attractive for many applications ranging from intrusion monitoring to seismology. However, accurate quantification of the applied stimulus in general implies sophisticated implementations with poor sensitivity performance. Coherent reflectometry using chirped pulses is an appealing solution, as it provides fast dynamic strain measurements with a simple experimental deployment. Here, we analyze for the first time to our knowledge the lower performance bounds of this technique as a function of the signal-to-noise ratio of the acquired optical signal. We demonstrate that implementations realized so far have been limited by the temporal sampling used instead of the optical signal quality. Through post-processing interpolation approaches, we reach the performance limit for a given set of signal parameters, attaining unprecedented strain sensitivities (∼10−12epsilon/√Hz) for km-length distributed sensors in conventional single-mode fibers.
Ficheros en el ítem
Ficheros | Tamaño | Formato |
|
---|---|---|---|
Fully_Costa_JLT_2019.pdf | 2.078Mb |
|
Ficheros | Tamaño | Formato |
|
---|---|---|---|
Fully_Costa_JLT_2019.pdf | 2.078Mb |
|
Colecciones
- ELECTRON - Artículos [242]
- Framework Program 7 [106]
- Horizon 2020 Framework Programme [131]
- INGFOTON - Artículos [108]