Fast and accurate full-spectrum interrogation for fiber Fabry-Perot interferometric sensor consisting of Bragg gratings in polarization maintaining fiber

被引：0

作者：

Wada, Atsushi ^{[1
]}

Tanaka, Satoshi ^{[1
]}

Takahashi, Nobuaki ^{[1
]}

机构：

[1] Natl Def Acad, Dept Commun Engn, Yokosuka, Kanagawa 2398686, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2018年 / 57卷 / 10期

关键词：

VIBRATION SENSOR; SIMULTANEOUS STRAIN; OPTIC SENSOR; TEMPERATURE; DEMODULATION; SYSTEM; CAVITY; RANGE;

D O I：

10.7567/JJAP.57.102501

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A measurement method for many sharp transmittance peaks of a fiber Fabry-Perot interferometer (FPI) with high resolution in a short time is proposed. Using the proposed method, temperature and strain dependences of an FPI constructed using polarization maintaining type fiber Bragg grating (PM-FBG-FPI) are evaluated. By detecting wavelength shift occurring in many peaks of a PM-FBG-FPI with high resolution, it is possible to quantitatively evaluate a slight shift coefficient difference due to the difference in resonance order of each peak. Simultaneous measurement resolution of temperature and strain by the PM-FBG-FPI sensor is also improved by using the average value of the wavelength shift detected at many peaks. The resulting high-resolution measurements are demonstrated experimentally. (C) 2018 The Japan Society of Applied Physics

引用

页数：6

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