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Proceedings Paper

Time and wavelength division multiplexing scheme for ultra-long sensing based on a cavity-modulated random DFB fiber laser
Author(s): D. Leandro; R. Perez-Herrera; M. Bravo; M. Lopez-Amo
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Paper Abstract

In this work, a new multiplexing scheme for ultra-long range measurements (up to 200 km) is presented. Time and wavelength sensor multiplexing is achieved by means of a modulated random distributed feedback laser (DFB). The direct modulation of the laser’s cavity allows the interrogation of sensors by measuring the reflected power for different wavelengths and distances. As a proof of concept, nine fiber Bragg gratings (FBGs) placed at different fiber locations and wavelengths have been interrogated.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963415 (28 September 2015); doi: 10.1117/12.2194561
Show Author Affiliations
D. Leandro, Univ. Pública de Navarra (Spain)
R. Perez-Herrera, Univ. Pública de Navarra (Spain)
M. Bravo, Univ. Pública de Navarra (Spain)
M. Lopez-Amo, Univ. Pública de Navarra (Spain)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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