New improvements for Brillouin optical time-domain reflectometry

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...

Full description

Saved in:
Bibliographic Details
Published in2017 25th Optical Fiber Sensors Conference (OFS) pp. 1 - 4
Main Authors Le Floch, Sébastien, Sauser, Florian
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2017
Subjects
distributed fiber sensors
image processing
Low pass filters
optical coding
Optical fiber polarization
Optical fiber sensors
Scattering
Spontaneous Brillouin scattering
Two dimensional displays
Online AccessGet full text

Cover

More Information
Summary: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.
DOI:10.1117/12.2261943