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Proceedings Paper

500km remote interrogation of optical sensor arrays
Author(s): Ed Austin; Qian Zhang; Shaif-ul Alam; Michalis Zervas; Radan Slavik; Periklis Petropoulos; Phil Nash; David J. Richardson
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Paper Abstract

We present remote measurements from a large-scale interferometric optical sensor system, using a 500km optical transmission link between interrogator and sensor array, 3 times longer than the longest reported so far to our knowledge. A phase noise floor of -80dB re 1 rad·Hz-0.5 peak was achieved (equivalent to 1 mPa·Hz-0.5). 256 sensors may be interrogated via the link using a single fibre pair, making the system highly suitable for remote interrogation of large scale sensor arrays for applications such as seismic and acoustic sensing. Eight amplified 125km spans using standard Corning SMF-28 single mode fibre form the transmission link.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77532M (17 May 2011); doi: 10.1117/12.886078
Show Author Affiliations
Ed Austin, Stingray Geophysical Ltd. (United Kingdom)
Qian Zhang, Univ. of Southampton (United Kingdom)
Shaif-ul Alam, Univ. of Southampton (United Kingdom)
Michalis Zervas, Univ. of Southampton (United Kingdom)
Radan Slavik, Univ. of Southampton (United Kingdom)
Periklis Petropoulos, Univ. of Southampton (United Kingdom)
Phil Nash, Stingray Geophysical Ltd. (United Kingdom)
David J. Richardson, Univ. of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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