New improvements for Brillouin optical time-domain reflectometry

Sébastien Le Floch; Florian Sauser

doi:10.1117/12.2261943

23 April 2017 New improvements for Brillouin optical time-domain reflectometry

Sébastien Le Floch, Florian Sauser

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103230L (2017) https://doi.org/10.1117/12.2261943
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

This paper presents new techniques designed to improve the performances of a BOTDR. The first one introduces a second pump to the sensor, thus doubling the Brillouin signal on the receiver. The second one uses image processing with a two-dimensional Gaussian filter whose parameters are defined. The last technique explores the possibilities offered by colour codes. The benefits of each, in terms of signal-to-noise ratio, is presented by comparing measurements over a distance range of 50km with a spatial resolution of 5m. These techniques can easily be combined and the global improvement is estimated at 10dB, compared to conventional sensors.

Citation Download Citation

Sébastien Le Floch and Florian Sauser "New improvements for Brillouin optical time-domain reflectometry", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103230L (23 April 2017); https://doi.org/10.1117/12.2261943

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