Optical Memory and Neural Networks

, Volume 22, Issue 2, pp 104–111 | Cite as

Relationship between temporal and spatial reflectogram scales in fiber optical time domain reflectometry systems

  • M. A. Bisyarin
  • O. I. Kotov
  • L. B. Liokumovich
  • N. A. Ushakov
Article

Abstract

Correspondence between time instant of the reflectogram and position of the optical fiber sector at which the scattering occurred is analyzed for the longitudinally inhomogeneous optical fiber and the external perturbation of the general kind. Conditions on the rate of the refractive index and external perturbation dependence on the longitudinal coordinate are stated that imply explicit formulae for shifts of scattering segments of various position with respect to the external perturbation. The effects are numerically estimated in the cases of geometric elongation and heating of the fiber.

Keywords

optical time domain reflectometry fiber optic sensors rayleigh scattering distributed sensors reflectogram scale 

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Copyright information

© Allerton Press, Inc. 2013

Authors and Affiliations

  • M. A. Bisyarin
    • 1
    • 2
  • O. I. Kotov
    • 2
  • L. B. Liokumovich
    • 2
  • N. A. Ushakov
    • 2
  1. 1.Saint-Petersburg State UniversitySaint-PetersburgRussia
  2. 2.Saint-Petersburg State Politechnical UniversitySaint-PetersburgRussia

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