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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 11 — May. 21, 2012
  • pp: 12147–12154

Raman-assisted Brillouin optical time-domain analysis with sub-meter resolution over 100 km

X. Angulo-Vinuesa, S. Martin-Lopez, P. Corredera, and M. Gonzalez-Herraez  »View Author Affiliations

Optics Express, Vol. 20, Issue 11, pp. 12147-12154 (2012)

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Sub-meter resolution in long-distance Brillouin Optical Time Domain Analysis (BOTDA) cannot be trivially achieved due to several issues including: resolution-uncertainty trade-offs, self-phase modulation, fiber attenuation, depletion, etc. In this paper we show that combining Raman assistance, differential pulse-width pair (DPP) measurements and a novel numerical de-noising procedure, we could obtain sub-meter resolution Brillouin optical time-domain analysis over a range of 100 km. We successfully demonstrate the detection of a 0.5 meter hot-spot in the position of worst contrast along the fiber.

© 2012 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(290.5900) Scattering : Scattering, stimulated Brillouin
(290.5910) Scattering : Scattering, stimulated Raman

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: March 23, 2012
Revised Manuscript: April 27, 2012
Manuscript Accepted: April 28, 2012
Published: May 14, 2012

X. Angulo-Vinuesa, S. Martin-Lopez, P. Corredera, and M. Gonzalez-Herraez, "Raman-assisted Brillouin optical time-domain analysis with sub-meter resolution over 100 km," Opt. Express 20, 12147-12154 (2012)

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