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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 4 — Feb. 15, 2013
  • pp: 471–473

High-performance hybrid Raman/fiber Bragg grating fiber-optic sensor based on simplex cyclic pulse coding

M. Taki, F. Zaidi, I. Toccafondo, T. Nannipieri, A. Signorini, S. Faralli, and F. Di Pasquale  »View Author Affiliations


Optics Letters, Vol. 38, Issue 4, pp. 471-473 (2013)
http://dx.doi.org/10.1364/OL.38.000471


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Abstract

We propose and experimentally demonstrate the use of cyclic pulse coding to improve the performance of hybrid Raman/fiber Bragg grating (FBG) fiber-optic sensors, for simultaneous measurement of distributed static temperature and discrete dynamic strain over the same sensing fiber. Effective noise reduction is achieved in both Raman optical time-domain reflectometry and dynamic interrogation of time-division-multiplexed fiber FBG sensors, enhancing the sensing range resolution and providing real-time point dynamic strain measurement capabilities. The highly integrated sensor scheme employs broadband apodized low-reflectivity FBGs, a single narrowband optical source, and a shared receiver block.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.1480) Optical devices : Bragg reflectors
(290.5860) Scattering : Scattering, Raman
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(280.1350) Remote sensing and sensors : Backscattering

ToC Category:
Diffraction and Gratings

History
Original Manuscript: November 13, 2012
Revised Manuscript: December 21, 2012
Manuscript Accepted: January 10, 2013
Published: February 8, 2013

Citation
M. Taki, F. Zaidi, I. Toccafondo, T. Nannipieri, A. Signorini, S. Faralli, and F. Di Pasquale, "High-performance hybrid Raman/fiber Bragg grating fiber-optic sensor based on simplex cyclic pulse coding," Opt. Lett. 38, 471-473 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-4-471


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