Raman fibre Bragg-grating laser sensor with cooperative Rayleigh scattering for strain-temperature measurement

被引：49
|
作者：
Frazao, O. [1 ]
Correia, C. [1 ,2 ]
Santos, J. L. [1 ,3 ]
Baptista, J. M. [1 ,2 ]
机构：
[1] INESC Porto, P-4169007 Oporto, Portugal
[2] Univ Madeira, Dept Matemat & Engn, P-9000390 Funchal, Portugal
[3] Univ Porto, Dept Fis, Fac Ciencias, P-4169007 Oporto, Portugal
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2009年 / 20卷 / 04期
关键词：
Raman effect; cooperative Rayleigh scattering; Raman fibre Bragg-grating laser sensor; LONG-DISTANCE REMOTE; BRILLOUIN-SCATTERING; SYSTEM; DEPENDENCE;
D O I：
10.1088/0957-0233/20/4/045203
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, a Raman fibre Bragg-grating laser sensor for strain-temperature measurement is presented. The laser resonator is a linear cavity formed by the reflectivity of the Bragg gratings and the virtual distributed mirror formed from the cooperative Rayleigh scattering in a dispersion-compensating fibre created by the Raman effect. Using one pump laser it is possible to obtain a Raman fibre Bragg-grating laser sensor with a range of similar to 35 nm. The sensing system is demonstrated when the fibre Bragg gratings are remotely located at a 10 km distance.
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页数：5
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