Stable multi-wavelength erbium fiber ring laser with optical feedback for remote sensing
Fecha
2015Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
|
10.1109/JLT.2014.2365257
Resumen
In this work, we demonstrate a stable fiber sensing system for remote temperature measurements, where the sensing element is an array of four fiber Bragg gratings (FBGs) and sensor interrogation is achieved with a multi-wavelength erbium fiber ring laser. By introducing a feedback fiber loop in a fiber ring cavity, four laser emission lines were obtained simultaneously in single-longitudinal mode ...
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In this work, we demonstrate a stable fiber sensing system for remote temperature measurements, where the sensing element is an array of four fiber Bragg gratings (FBGs) and sensor interrogation is achieved with a multi-wavelength erbium fiber ring laser. By introducing a feedback fiber loop in a fiber ring cavity, four laser emission lines were obtained simultaneously in single-longitudinal mode operation (SLM). The power instability obtained was lower than 0.5 dB with an optical signal-to-noise ratio (OSNR) higher than 50 dB for all the emitted wavelengths. The application of this system for remote temperature measurements has been demonstrated even though the SLM regime cannot be preserved. [--]
Materias
Erbium-doped fiber (EDF),
Fiber Bragg grating (FBG),
Multi-wavelength lasing,
Single-longitudinal-mode (SLM)
Editor
IEEE / OSA
Publicado en
Journal of Lightwave Technology, 2015, 33 (12), 2439-2444
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Versión del editor
Entidades Financiadoras
This work was supported by the Spanish Ministerio de Ciencia y Tecnologia through project TEC2013-47264-C2-2-R and the INTERREG SUDOE Project “ECOAL-MGT-Ecological Management of Coal Waste Piles, SOE3/P2/P714”.