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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 18 — Sep. 15, 2006
  • pp: 2698–2700

Effect of Brillouin slow light on distributed Brillouin fiber sensors

Lufan Zou, Xiaoyi Bao, Shiquan Yang, Liang Chen, and Fabien Ravet  »View Author Affiliations


Optics Letters, Vol. 31, Issue 18, pp. 2698-2700 (2006)
http://dx.doi.org/10.1364/OL.31.002698


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Abstract

The effect of Brillouin slow light on distributed Brillouin fiber sensors (DBFSs) is studied. We demonstrate Brillouin slow light for a 1.2 ns pulse with peak powers ( P S ) from 3.3 to 56.2 mW on depletion of the pump power ( P P ) ranging from 1.3 to 83.2 mW in conventional optical fibers (SMF-28). Experiments show that, when pump power depletion is not negligible, for a given P P the Brillouin gain and delay time of a pulse decrease when P S increases in a long ( 10 km ) sensing fiber. The optimum pump beam depletion resulting from strong interaction of the pump and the probe in the fiber provides accurate temperature and strain information at a high spatial resolution. Our study reveals that at low P P the spatial resolution error caused by the pulse delay for a DBFS with centimeter spatial resolution is less than 5% of the pulse length.

© 2006 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 10, 2006
Revised Manuscript: June 22, 2006
Manuscript Accepted: June 22, 2006
Published: August 25, 2006

Citation
Lufan Zou, Xiaoyi Bao, Shiquan Yang, Liang Chen, and Fabien Ravet, "Effect of Brillouin slow light on distributed Brillouin fiber sensors," Opt. Lett. 31, 2698-2700 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-18-2698

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