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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 15 — Aug. 1, 2014
  • pp: 4313–4316

Phase-sensitive optical time-domain reflectometry with Brillouin amplification

Z. N. Wang, J. Li, M. Q. Fan, L. Zhang, F. Peng, H. Wu, J. J. Zeng, Y. Zhou, and Y. J. Rao  »View Author Affiliations

Optics Letters, Vol. 39, Issue 15, pp. 4313-4316 (2014)

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We propose a phase-sensitive optical time-domain reflectometry (Φ-OTDR) scheme with counterpumping fiber Brillouin amplification (FBA). High-sensitivity perturbation detection over 100 km is experimentally demonstrated as an example. FBA significantly enhances the probe pulse signal, especially at the second half of the sensing fiber, with only 6.4 dBm pump power. It is confirmed that its amplification efficiency is much higher than 28.0 dBm counterpumping fiber Raman amplification. The FBA Φ-OTDR scheme demonstrated in this work can also be incorporated into other distributed fiber-optic sensing systems for extension of sensing distance or enhancement of sensing signal level.

© 2014 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(290.5870) Scattering : Scattering, Rayleigh
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:

Original Manuscript: March 31, 2014
Revised Manuscript: June 10, 2014
Manuscript Accepted: June 16, 2014
Published: July 18, 2014

Z. N. Wang, J. Li, M. Q. Fan, L. Zhang, F. Peng, H. Wu, J. J. Zeng, Y. Zhou, and Y. J. Rao, "Phase-sensitive optical time-domain reflectometry with Brillouin amplification," Opt. Lett. 39, 4313-4316 (2014)

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