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Proceedings Paper

Switchable fiber optic laser system for high and low-strain fiber optic sensors remote multiplexing
Author(s): S. Rota-Rodrigo; L. Rodríguez-Cobo; M. A. Quintela; J. M. López-Higuera; M. López-Amo
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Paper 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.

Paper Details

Date Published: 20 May 2013
PDF: 5 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943U (20 May 2013); doi: 10.1117/12.2025818
Show Author Affiliations
S. Rota-Rodrigo, Univ. Pública de Navarra (Spain)
L. Rodríguez-Cobo, Univ. de Cantabria (Spain)
M. A. Quintela, Univ. de Cantabria (Spain)
J. M. López-Higuera, Univ. de Cantabria (Spain)
M. López-Amo, Univ. Pública de Navarra (Spain)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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