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Proceedings Paper

Wide-range temperature dependence of spontaneous Brillouin intensity in a dispersion-shifted fiber
Author(s): Yongqian Li; Fucai Zhang; Toshihiko T. Yoshino
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Paper Abstract

Temperature dependence of spontaneous Brillouin intensity in a dispersion-shifted fiber has been investigated in a wide temperature range theoretically and experimentally. It has been found that Brillouin intensity varied with temperature linearly in the range —27 °C to 819 °C by a coefficient of(0.26±0.02)%/°C after the fiber coating was pyrolyzed totally. Temperature measurement in the range above has been realized with a spatial resolution of 13 m at the end of 4 km long test fiber, which demonstrates the feasibility of the present system for the distributed sensing of wide-range temperature.

Paper Details

Date Published: 9 September 2002
PDF: 6 pages
Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); doi: 10.1117/12.481991
Show Author Affiliations
Yongqian Li, Gunma Univ. (Japan)
Fucai Zhang, Gunma Univ. (Japan)
Toshihiko T. Yoshino, Gunma Univ. (Japan)


Published in SPIE Proceedings Vol. 4920:
Advanced Sensor Systems and Applications
Yun-Jiang Rao; Julian D. C. Jones; Hiroshi Naruse; Robert I. Chen, Editor(s)

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