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Switchable fiber optic laser system for high and low-strain fiber optic sensors remote multiplexing

Abstract: In this paper, a 50 Km remote and switchable fiber optic sensing system based on an erbium doped fiber ring laser is proposed. The system allows the integration of different interrogation methods based on the detection of wavelength or amplitude variations of the laser. This integration is carried out by sequentially activating different ring cavities by using an optical switch. With this scheme, the maximum gain zone of the erbium doped fiber amplifier can be used to increase the distance of the sensor system. A bending intensity sensor and a FBG based strain sensor were successfully tested for high and low-strain measurements respectively. This system includes all the active elements inside the monitoring station, enabling the remote monitoring of the sensors.

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Authorship: Rota-Rodrigo S., Rodríguez-Cobo L., Quintela M., López-Higuera J., López-Amo M.,

Congress: European Workshop on Optical Fibre Sensors (5º : 2013 : Cracovia)

Publisher: SPIE Society of Photo-Optical Instrumentation Engineers

Publication date: 20/05/2013

No. of pages: 5

Publication type: Conference object

DOI: 10.1117/12.2025818

ISSN: 0277-786X,1996-756X

Spanish project: TEC2010-20224-C02

Publication Url: https://doi.org/10.1117/12.2025818

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Authorship

SERGIO ROTA RODRIGO

LUIS RODRIGUEZ COBO

MARIA ANGELES QUINTELA INCERA

JOSE MIGUEL LOPEZ HIGUERA

MANUEL LOPEZ-AMO SAINZ

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