Simultaneous temperature and strain measurement with combined spontaneous Raman and Brillouin scattering

被引：123
作者：
Alahbabi, MN [1 ]
Cho, YT [1 ]
Newson, TP [1 ]
机构：
[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
来源：
OPTICS LETTERS | 2005年 / 30卷 / 11期
关键词：
D O I：
10.1364/OL.30.001276
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on a novel method for simultaneous distributed measurement of temperature and strain based on spatially resolving both spontaneous Raman and Brillouin backscattered anti-Stokes signals. The magnitude of the intensity of the anti-Stokes Raman signal permits the determination of the temperature. The Brillouin frequency shift is dependent on both the temperature and the strain of the fiber; once the temperature has been determined from the Raman signal, the strain can then be computed from the frequency measurement of the Brillouin signal. (c) 2005 Optical Society of America
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页码：1276 / 1278
页数：3
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