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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 6 — Mar. 15, 2013
  • pp: 872–874

Modulation instability-induced fading in phase-sensitive optical time-domain reflectometry

Hugo F. Martins, Sonia Martin-Lopez, Pedro Corredera, Pedro Salgado, Orlando Frazão, and Miguel González-Herráez  »View Author Affiliations

Optics Letters, Vol. 38, Issue 6, pp. 872-874 (2013)

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Phase-sensitive optical time-domain reflectometry (ϕOTDR) is a simple and effective tool allowing the distributed monitoring of vibrations along single-mode fibers. We show in this Letter that modulation instability (MI) can induce a position-dependent signal fading in long-range ϕOTDR over conventional optical fibers. This fading leads to a complete masking of the interference signal recorded at certain positions and therefore to a sensitivity loss at these positions. We illustrate this effect both theoretically and experimentally. While this effect is detrimental in the context of distributed vibration analysis using ϕOTDR, we also believe that the technique provides a clear and insightful way to evidence the Fermi–Pasta–Ulam recurrence associated with the MI process.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(190.2640) Nonlinear optics : Stimulated scattering, modulation, etc.
(190.3270) Nonlinear optics : Kerr effect
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Nonlinear Optics

Original Manuscript: January 2, 2013
Revised Manuscript: February 6, 2013
Manuscript Accepted: February 7, 2013
Published: March 12, 2013

Hugo F. Martins, Sonia Martin-Lopez, Pedro Corredera, Pedro Salgado, Orlando Frazão, and Miguel González-Herráez, "Modulation instability-induced fading in phase-sensitive optical time-domain reflectometry," Opt. Lett. 38, 872-874 (2013)

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