500km remote interrogation of optical sensor arrays

Ed Austin; Qian Zhang; Shaif-ul Alam; Michalis Zervas; Radan Slavik; Periklis Petropoulos; Phil Nash; David J. Richardson

doi:10.1117/12.886078

17 May 2011 500km remote interrogation of optical sensor arrays

Ed Austin, Qian Zhang, Shaif-ul Alam, Michalis Zervas, Radan Slavik, Periklis Petropoulos, Phil Nash, David J. Richardson

Author Affiliations +

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77532M (2011) https://doi.org/10.1117/12.886078
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

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.

Citation Download Citation

Ed Austin, Qian Zhang, Shaif-ul Alam, Michalis Zervas, Radan Slavik, Periklis Petropoulos, Phil Nash, and David J. Richardson "500km remote interrogation of optical sensor arrays", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77532M (17 May 2011); https://doi.org/10.1117/12.886078

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