Simultaneous measurement of strain and temperature by use of a single-fiber Bragg grating and an erbium-doped fiber amplifier

被引：88

作者：

Jung, J ^{[1
]}

Nam, H ^{[1
]}

Lee, JH ^{[1
]}

Park, N ^{[1
]}

Lee, B ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Elect Engn, Kwanak Gu, Seoul 151742, South Korea

来源：

APPLIED OPTICS | 1999年 / 38卷 / 13期

关键词：

D O I：

10.1364/AO.38.002749

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate a novel sensor by using a single-fiber Bragg grating that can simultaneously measure strain and temperature with the aid of an erbium-doped fiber amplifier. By using a linear variation in the amplified spontaneous emission power of the erbium-doped fiber amplifier with temperature, we determine the temperature. By subtracting the temperature effect from the fiber Bragg grating Bragg wavelength shift, we determine the strain. Experiments show rms deviations of 18.2 mu epsilon and 0.7 degrees C for strain and temperature, respectively. (C) 1999 Optical Society of America.

引用

页码：2749 / 2751

页数：3

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