Performance Enhancement of Brillouin Distributed Temperature Sensor Using Optimized Fiber

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 243)


The improvement of signal-to-noise ratio (SNR) and the suppression of stimulated Brillouin scattering (SBS) effects in a long-range distributed sensor are presented in this paper. We have designed a simple Brillouin distributed temperature sensor using phase modulation and optimization technique. Global evolutionary computing-based optimization technique [particle swarm optimization (PSO)] is applied for fiber and receiver optimization. The simulated results of the sensing system are reported in this paper. The combination of phase modulation and the global evolutionary computing technique improved the SBS threshold power to an extent of 6.8 and 6.3 dBm for 50 and 75 km of sensing range, respectively. However, with both receiver and fiber optimization, a 20 dBm improvement of SNR for an input power of 5 dBm and 75 km of sensing range is reported.


Evolutionary computing PSO SBS SNR 


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Copyright information

© Springer India 2014

Authors and Affiliations

  1. 1.School of Electrical SciencesIITBhubaneswarIndia

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