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

被引：56

作者：

Maughan, SM ^{[1
]}

Kee, HH ^{[1
]}

Newson, TP ^{[1
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

来源：

OPTICS LETTERS | 2001年 / 26卷 / 06期

关键词：

D O I：

10.1364/OL.26.000331

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2001 Optical Society of America.

引用

页码：331 / 333

页数：3

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