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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 6 — Mar. 15, 2001
  • pp: 331–333

57-km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection

Sally M. Maughan, Huai H. Kee, and Trevor P. Newson  »View Author Affiliations


Optics Letters, Vol. 26, Issue 6, pp. 331-333 (2001)
http://dx.doi.org/10.1364/OL.26.000331


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Abstract

We present a novel technique for performing single-ended distributed fiber temperature measurements by use of microwave heterodyne detection of spontaneous Brillouin scattering. Brillouin frequency-shift measurements were obtained for a sensing length of 57 km, with a spatial resolution of 20 m. The rms error in frequency measurements at the far end of the sensing fiber was less than 3 MHz, and the overall frequency dependence on temperature was 1.07±0.06 MHz/K.

© 2001 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(290.5830) Scattering : Scattering, Brillouin

Citation
Sally M. Maughan, Huai H. Kee, and Trevor P. Newson, "57-km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection," Opt. Lett. 26, 331-333 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-6-331

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