20 May 2013 Switchable fiber optic laser system for high and low-strain fiber optic sensors remote multiplexing
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Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 87943U (2013) https://doi.org/10.1117/12.2025818
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland
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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S. Rota-Rodrigo, L. Rodríguez-Cobo, M. A. Quintela, J. M. López-Higuera, M. López-Amo, "Switchable fiber optic laser system for high and low-strain fiber optic sensors remote multiplexing", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943U (20 May 2013); doi: 10.1117/12.2025818; https://doi.org/10.1117/12.2025818
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