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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 21 — Oct. 10, 2011
  • pp: 19845–19854

Slope-assisted fast distributed sensing in optical fibers with arbitrary Brillouin profile

Yair Peled, Avi Motil, Lior Yaron, and Moshe Tur  »View Author Affiliations

Optics Express, Vol. 19, Issue 21, pp. 19845-19854 (2011)

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We present a novel method, based on stimulated Brillouin scattering (SBS), for the simultaneous distributed measurement of fast strain variations along the entire length of the sensing fiber. A specially synthesized and adaptable probe wave is used to place the Brillouin interaction always on the slope of the local Brillouin gain spectrum, allowing a single pump pulse to sample fast strain variations along the full length of a fiber with an arbitrary distribution of the Brillouin frequency shift. In this early demonstration of the method, strain vibrations of a few hundred Hz are demonstrated, simultaneously measured on two different sections of an 85m long fiber, having different static Brillouin shifts and with a spatial resolution of 1.5m.

© 2011 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(190.0190) Nonlinear optics : Nonlinear optics
(290.5830) Scattering : Scattering, Brillouin

ToC Category:

Original Manuscript: July 21, 2011
Revised Manuscript: August 30, 2011
Manuscript Accepted: August 30, 2011
Published: September 26, 2011

Yair Peled, Avi Motil, Lior Yaron, and Moshe Tur, "Slope-assisted fast distributed sensing in optical fibers with arbitrary Brillouin profile," Opt. Express 19, 19845-19854 (2011)

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