Simplex-coded BOTDA fiber sensor with 1 m spatial resolution over a 50 km range

In this Letter, we propose the use of optical pulse coding techniques for long-range distributed sensors based on Brillouin optical time-domain analysis (BOTDA). Compared to conventional BOTDA sensors, optical coding provides a significant sensing-range enhancement, allowing for temperature and strain measurements with 1 m spatial resolution over 50 km of standard single-mode fiber, with an accuracy of 2.2°C/44 με, respectively.


Published in:
Opt. Lett., 35, 2, 259-261
Year:
2010
Publisher:
Optical Society of America
ISSN:
0146-9592
Keywords:
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 Record created 2010-01-15, last modified 2018-03-18

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