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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 20 — Sep. 26, 2011
  • pp: 18917–18926

Efficient dynamic events discrimination technique for fiber distributed Brillouin sensors

Carlos A. Galindez, Francisco J. Madruga, and Jose M. Lopez-Higuera  »View Author Affiliations


Optics Express, Vol. 19, Issue 20, pp. 18917-18926 (2011)
http://dx.doi.org/10.1364/OE.19.018917


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Abstract

A technique to detect real time variations of temperature or strain in Brillouin based distributed fiber sensors is proposed and is investigated in this paper. The technique is based on anomaly detection methods such as the RX-algorithm. Detection and isolation of dynamic events from the static ones are demonstrated by a proper processing of the Brillouin gain values obtained by using a standard BOTDA system. Results also suggest that better signal to noise ratio, dynamic range and spatial resolution can be obtained. For a pump pulse of 5 ns the spatial resolution is enhanced, (from 0.541 m obtained by direct gain measurement, to 0.418 m obtained with the technique here exposed) since the analysis is concentrated in the variation of the Brillouin gain and not only on the averaging of the signal along the time.

© 2011 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Sensors

History
Original Manuscript: June 8, 2011
Revised Manuscript: July 20, 2011
Manuscript Accepted: July 26, 2011
Published: September 14, 2011

Citation
Carlos A. Galindez, Francisco J. Madruga, and Jose M. Lopez-Higuera, "Efficient dynamic events discrimination technique for fiber distributed Brillouin sensors," Opt. Express 19, 18917-18926 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-20-18917


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References

  1. C. Galindez and J. M. Lopez-Higuera, “Decimeter spatial resolution by using differential pre-excitation BOTDA pulse technique,” IEEE Sens. J.PP(99), 1–1 (2011). [CrossRef] [PubMed]
  2. A. Minardo, R. Bernini, and L. Zeni, “Stimulated Brillouin scattering modeling for high-resolution, time-domain distributed sensing,” Opt. Express15(16), 10397–10407 (2007). [CrossRef] [PubMed]
  3. K. Y. Song, Z. He, and K. Hotate, “Distributed strain measurement with millimeter-order spatial resolution based on Brillouin optical correlation domain analysis,” Opt. Lett.31(17), 2526–2528 (2006). [CrossRef] [PubMed]
  4. M. A. Soto, G. Bolognini, and F. Di Pasquale, “Long-range simplex-coded BOTDA sensor over 120 km distance employing optical preamplification,” Opt. Lett.36(2), 232–234 (2011). [CrossRef] [PubMed]
  5. A. Zornoza, A. Minardo, R. Bernini, A. Loayssa, and L. Zeni, “Pulsing the probe wave to reduce nonlocal effects in Brillouin optical time-domain analysis sensors,” IEEE Sens. J.11, 1067–1068 (2011). [CrossRef]
  6. T. Horiguchi, T. Kurashima, and M. Tateda, “Technique to measure distributed strain in optical fibers,” IEEE Photon. Technol. Lett.2(5), 352–354 (1990). [CrossRef]
  7. T. Kurashima, T. Horiguchi, and M. Tateda, “Distributed-temperature sensing using stimulated Brillouin scattering in optical silica fibers,” Opt. Lett.15(18), 1038–1040 (1990). [CrossRef] [PubMed]
  8. Z. Liu, G. Ferrier, X. Bao, X. Zeng, Q. Yu, and A. Kim, “Brillouin Scattering Based Distributed Fiber Optic Temperature Sensing for Fire Detection,” in Proceedings of The 7th International Symposium on Fire Safety Conference (Worcester, 2002).
  9. R. Bernini, A. Minardo, and L. Zeni, “Dynamic strain measurement in optical fibers by stimulated Brillouin scattering,” Opt. Lett.34(17), 2613–2615 (2009). [CrossRef] [PubMed]
  10. X. Bao, C. Zhang, W. Li, M. Eisa, S. El-Gamal, and B. Benmokrane, “Monitoring the distributed impact wave on a concrete slab due to the traffic based on polarization dependence on stimulated Brillouin scattering,” Smart Mater. Struct.17(1), 015003 (2008). [CrossRef]
  11. P. Chaube, B. G. Colpitts, D. Jagannathan, and A. W. Brown, “Distributed Fiber-Optic Sensor for Dynamic Strain Measurement,” IEEE Sens. J.8(7), 1067–1072 (2008). [CrossRef]
  12. K. Y. Song and K. Hotate, “Distributed Fiber Strain Sensor With 1-kHz Sampling Rate Based on Brillouin Optical Correlation Domain Analysis,” IEEE Photon. Technol. Lett.19(23), 1928–1930 (2007). [CrossRef]
  13. R. W. Boyd, Non linear Optics (Academic Press; Elsevier Science, 2003).
  14. C. Galindez, F. J. Madruga, and J. M. Lopez-Higuera, “Brillouin frequency shift of standard optical fibers set in water vapor medium,” Opt. Lett.35(1), 28–30 (2010). [CrossRef] [PubMed]
  15. I. S. Reed and X. Yu, “Adaptive multiple-band CFAR detection of an optical pattern with unknown spectral distribution,” IEEE Trans. Acoust. Speech Signal Process.38(10), 1760–1770 (1990). [CrossRef]

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