> 10 dB SNR enhancement in distributed acoustic sensors through first order phase noise cancellation

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Research areas:
Year:
2018
Type of Publication:
In Proceedings
Authors:
  • Fernández-Ruiz, M.R
  • Pastor-Graells, J
  • Martins, H.F
  • Garcia-Ruiz, A.
  • Martin-Lopez, S.M.
Number:
W1K.2
ISBN:
978-155752820-9
BibTex:
Abstract:
The performance of Rayleigh-based distributed acoustic sensors (DAS) is strongly dependent on the coherence of the laser source. We present a simple methodology to reduce the impact of the laser phase noise in chirped-pulse DAS.