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首页> 外文期刊>Japanese journal of applied physics >Fast and accurate full-spectrum interrogation for fiber Fabry-Perot interferometric sensor consisting of Bragg gratings in polarization maintaining fiber
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Fast and accurate full-spectrum interrogation for fiber Fabry-Perot interferometric sensor consisting of Bragg gratings in polarization maintaining fiber

机译：光纤Fabry-Perot干涉式传感器的快速准确的全光谱查询，该传感器由保偏光纤中的布拉格光栅组成

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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
机译：提出了一种短时间内高分辨率的法布里-珀罗光纤干涉仪（FPI）的许多尖峰透射率测量方法。使用提出的方法，评估了使用偏振保持型光纤布拉格光栅（PM-FBG-FPI）构造的FPI的温度和应变依赖性。通过以高分辨率检测在PM-FBG-FPI的许多峰中发生的波长偏移，可以定量地评估由于每个峰的共振顺序的差异而引起的微小的偏移系数差异。通过使用在许多峰值处检测到的波长偏移的平均值，还可以改善PM-FBG-FPI传感器同时测量温度和应变的分辨率。实验证明了所得的高分辨率测量结果。 （C）2018日本应用物理学会

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