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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 6 — Mar. 20, 2006
  • pp: 2071–2078

How to obtain high spectral resolution of SBS-based distributed sensing by using nanosecond pulses

V. P. Kalosha, E. A. Ponomarev, Liang Chen, and Xiaoyi Bao  »View Author Affiliations

Optics Express, Vol. 14, Issue 6, pp. 2071-2078 (2006)

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The ultimate spectral and spatial resolutions of distributed sensing based on stimulated Brillouin scattering (SBS) in optical fibers is shown for several-nanosecond Stokes pulses. Precise measurements of the local Brillouin frequency, with a spectral resolution close to the natural linewidth and, simultaneously, the spatial resolution of the pulse length are provided by AC detection of the output pump in the case of a finite cw component (base) of the Stokes pulse. Simulation examples of SBS-based sensing for fibers containing sections with different Brillouin frequencies are presented, demonstrating the high resolution of the sensing.

© 2006 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(290.5830) Scattering : Scattering, Brillouin

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: December 22, 2005
Manuscript Accepted: March 1, 2006
Published: March 20, 2006

V. P. Kalosha, E. Ponomarev, Liang Chen, and Xiaoyi Bao, "How to obtain high spectral resolution of SBS-based distributed sensing by using nanosecond pulses," Opt. Express 14, 2071-2078 (2006)

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