Compound lasing fiber optic ring resonators for sensing
Identifiers
Permanent link (URI): http://hdl.handle.net/10017/39527DOI: 10.1117/12.2071054
ISSN: 0277-786X
ISBN: 978-1-62841175-1
Publisher
SPIE
Date
2014-06-02Funders
Ministerio de Ciencia e Innovación
European Commission
Ministerio de Economía y Competitividad
Keywords
Fiber laser sensor
Laser ring resonator
Optical fiber sensor
Project
info:eu-repo/grantAgreement/MICINN//TEC2010-20224-C02-01/ES/TECNOLOGIAS PARA SENSORES DE FIBRA OPTICA I/
info:eu-repo/grantAgreement/MINECO//TEC2012-37958-C02-01/ES/TECNOLOGIAS DE SEGURIDAD CIVIL BASADAS EN FIBRA OPTICA/
info:eu-repo/grantAgreement/EC/Interreg Sudoe/SOE3%2FP2%2FP714/EU/Gestión ecológica de pilas de residuos de carbón en combustión/ECOAL-MGT
info:eu-repo/grantAgreement/EC/FP7/307441/EU/Ubiquitous optical FIbre NErves/U-FINE
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/acceptedVersion
Publisher's version
http://dx.doi.org/10.1117/12.2071054Rights
Atribución-NoComercial-SinDerivadas 3.0 España
© SPIE, 2014
Access rights
info:eu-repo/semantics/openAccess
Abstract
In this work, we present a new method for increasing simultaneously the sensitivity and interrogation stability of fiberoptic intensity sensors. The configuration is based on a double-coupler ring resonator. On one side, the attenuation sensitivity of the sensor is enhanced by placing it inside a ring resonator. On the other side, the stability of the interrogation method is rendered close to perfect by creating an external lasing ring resonator with matched spectral response. The resulting lasers allow the stable interrogation of the sensors with an impressive sensitivity enhancement. In our experiments, the dynamic range of the intensity sensor (and consequently its sensitivity) is increased 15 dB by using this laser-based interrogation system. Simultaneously, the instability of the system is reduced to ±0.05 dB. In comparison with systems based on external interrogation, our method is <100 times more stable and also simpler, as no wavelength tunable elements are required.
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Compound lasing fiber optic ring ... | 941.9Kb |
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Compound lasing fiber optic ring ... | 941.9Kb |
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