New improvements for Brillouin optical time-domain reflectometry

Le Floch, Sébastien (School of Engineering – HE-Arc Ingénierie, HES-SO // University of Applied Sciences Western Switzerland) ; Sauser, Florian (School of Engineering – HE-Arc Ingénierie, HES-SO // University of Applied Sciences Western Switzerland)

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.


Conference Type:
full paper
Faculty:
Ingénierie et Architecture
School:
HE-Arc Ingénierie
Institute:
Aucun institut
Subject(s):
Ingénierie
Publisher:
Jeju, Korea, Republic of, 24-28 April 2017
Date:
2017-04
Jeju, Korea, Republic of
24-28 April 2017
Published in:
Proceedings of the 25th International Conference on Optical Fiber Sensors, 24-28 April 2017, Jeju, Korea, Republic of
DOI:
ISSN:
0277-786X
Appears in Collection:



 Record created 2019-03-26, last modified 2019-04-23

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