28 September 2015 Simplified Brillouin sensor for structural health monitoring applications based on passive optical filtering
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96346O (2015) https://doi.org/10.1117/12.2194946
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
We present a simplified configuration for distributed Brillouin optical time domain analysis sensors. The technique is based on passive optical filtering of the spectral components generated in an RF-pulse-modulated optical source. The aim of this configuration is to reduce the cost of the sensor by simplifying the generation of the optical waves involved in the sensing process. Proof-of-concept experiments demonstrate distributed temperature measurement with 1 m resolution over a 20 km sensing fiber.
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Haritz Iribas, Haritz Iribas, Javier Urricelqui, Javier Urricelqui, Jon Mariñelarena, Jon Mariñelarena, Mikel Sagues, Mikel Sagues, Alayn Loayssa, Alayn Loayssa, "Simplified Brillouin sensor for structural health monitoring applications based on passive optical filtering", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346O (28 September 2015); doi: 10.1117/12.2194946; https://doi.org/10.1117/12.2194946
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