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Optics Letters

Optics Letters


  • Vol. 28, Iss. 18 — Sep. 15, 2003
  • pp: 1651–1653

50-km single-ended spontaneous-Brillouin-based distributed-temperature sensor exploiting pulsed Raman amplification

Y. T. Cho, M. Alahbabi, M. J. Gunning, and T. P. Newson  »View Author Affiliations

Optics Letters, Vol. 28, Issue 18, pp. 1651-1653 (2003)

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We demonstrate enhanced performance of a single-ended spontaneous-Brillouin-intensity-based distributed-temperature sensor with a sensing length of 50 km and a spatial resolution of 15 m by use of Raman amplification of the probe pulse within the sensing fiber. The Raman amplification was achieved with a copropagating pump pulse at 1450 nm. The standard deviation error of the temperature resolution was 1 °C at the front end and increased to less than 13 °C at 50 km with Raman pulse amplification.

© 2003 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(190.5650) Nonlinear optics : Raman effect
(290.1350) Scattering : Backscattering
(290.5830) Scattering : Scattering, Brillouin

Y. T. Cho, M. Alahbabi, M. J. Gunning, and T. P. Newson, "50-km single-ended spontaneous-Brillouin-based distributed-temperature sensor exploiting pulsed Raman amplification," Opt. Lett. 28, 1651-1653 (2003)

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