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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.

Other conference communications or articles related to authors from the University of Cantabria

 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

Authorship

SERGIO ROTA RODRIGO

LUIS RODRIGUEZ COBO

MANUEL LOPEZ-AMO SAINZ