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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 8 — Apr. 12, 2010
  • pp: 8459–8465

Optical pulse coding in hybrid distributed sensing based on Raman and Brillouin scattering employing Fabry–Perot lasers

Gabriele Bolognini and Marcelo A. Soto  »View Author Affiliations


Optics Express, Vol. 18, Issue 8, pp. 8459-8465 (2010)
http://dx.doi.org/10.1364/OE.18.008459


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Abstract

We demonstrate simultaneous strain and temperature sensing based on hybrid Raman and Brillouin scattering with enhanced performance thanks to the combined use of standard Fabry–Perot lasers in conjunction with optical pulse coding techniques. The combination of both techniques allows for an improvement of ~8.7 dB in temperature resolution and ~3 dB in strain resolution, with respect to standard distributed feedback lasers, as confirmed by experiments, resulting in a final temperature / strain resolution of ~0.27K / ~30με over 25-km sensing fiber range, avoiding the use of optical amplification and wavelength averaging techniques.

© 2010 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(290.5830) Scattering : Scattering, Brillouin
(290.5860) Scattering : Scattering, Raman

ToC Category:
Sensors

History
Original Manuscript: February 11, 2010
Revised Manuscript: March 11, 2010
Manuscript Accepted: March 12, 2010
Published: April 7, 2010

Citation
Gabriele Bolognini and Marcelo A. Soto, "Optical pulse coding in hybrid distributed sensing based on Raman and Brillouin scattering employing Fabry–Perot lasers," Opt. Express 18, 8459-8465 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-8-8459


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References

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