Discriminative measurement of strain and temperature using Brillouin scattering and fluorescence in erbium-doped optical fiber

被引：0

作者：

Ding, Mingjie ^{[1
]}

Mizuno, Yosuke ^{[1
]}

Nakamura, Kentaro ^{[1
]}

机构：

[1] Tokyo Inst Technol, Precis & Intelligence Lab, Yokohama, Kanagawa 2268503, Japan

来源：

23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS | 2014年 / 9157卷

关键词：

Brillouin scattering; fluorescence intensity ratio; discriminative measurement; distributed fiber-optic sensing; erbium-doped optical fiber; heterodyne detection; FREQUENCY-SHIFT; DEPENDENCE; PROPOSAL;

D O I：

10.1117/12.2059438

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel discriminative strain and temperature measurement is demonstrated using Brillouin scattering and fluorescence in an erbium-doped fiber (EDF). The fluorescence intensity ratio, calculated using the fluorescence intensities (or powers) at 1530 nm and at 1565 nm, is linearly dependent on temperature with a proportionality constant of 7.5 x 10(-4)/degrees C, but is not influenced by strain. By combining the strain-and temperature-dependences of Brillouin frequency shift in EDFs, the applied strain of 0.4% and the temperature of 20.0 degrees C were successfully discriminated with measurement errors of 0.03% and 0.6 degrees C, respectively.

引用

页数：4

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