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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 21 — Nov. 1, 2012
  • pp: 4434–4436

Hybrid Raman/fiber Bragg grating sensor for distributed temperature and discrete dynamic strain measurements

Iacopo Toccafondo, Mohammad Taki, Alessandro Signorini, Farhan Zaidi, Tiziano Nannipieri, Stefano Faralli, and Fabrizio Di Pasquale  »View Author Affiliations


Optics Letters, Vol. 37, Issue 21, pp. 4434-4436 (2012)
http://dx.doi.org/10.1364/OL.37.004434


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Abstract

We propose and experimentally demonstrate a hybrid fiber optic sensing technique that effectively combines Raman optical time domain reflectometry and in-line time-division-multiplexing for fiber Bragg grating (FBG) dynamic interrogation. The highly integrated proposed scheme employs broadband apodized low reflectivity FBGs with a single narrowband optical source and a shared receiver block, allowing for simultaneous measurements of distributed static temperature and discrete dynamic strain, over the same sensing fiber.

© 2012 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:
Optical Devices

History
Original Manuscript: July 30, 2012
Revised Manuscript: September 17, 2012
Manuscript Accepted: September 17, 2012
Published: October 22, 2012

Citation
Iacopo Toccafondo, Mohammad Taki, Alessandro Signorini, Farhan Zaidi, Tiziano Nannipieri, Stefano Faralli, and Fabrizio Di Pasquale, "Hybrid Raman/fiber Bragg grating sensor for distributed temperature and discrete dynamic strain measurements," Opt. Lett. 37, 4434-4436 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-21-4434


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References

  1. N. Anscombe and O. Graydon, Nat. Photonics 2, 143 (2008).
  2. K. T. V. Grattan and T. Sun, Sens. Actuators A 82, 40 (2000). [CrossRef]
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  5. T. Nannipieri, M. Taki, F. Zaidi, A. Signorini, M. A. Soto, G. Bolognini, and F. Di Pasquale, “Hybrid BOTDA/FBG sensor for discrete dynamic and distributed static strain/temperature measurements,” presented at the 22nd International Conference on Optical Fiber Sensors (OFS-22), October 15–19, 2012, Beijing, China, paper no. 8421-205.

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