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Research Progress on F-P Interference—Based Fiber-Optic Sensors

机译:基于F-P干扰的光纤传感器的研究进展

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摘要

We review our works on Fabry-Perot (F-P) interferometric fiber-optic sensors with various applications. We give a general model of F-P interferometric optical fiber sensors including diffraction loss caused by the beam divergence and the Gouy phase shift. Based on different structures of an F-P cavity formed on the end of a single-mode fiber, the F-P interferometric optical sensor has been extended to measurements of the refractive index (RI) of liquids and solids, temperature as well as small displacement. The RI of liquids and solids can be obtained by monitoring the fringe contrast related to Fresnel reflections, while the ambient temperature and small displacement can be obtained by monitoring the wavelength shift of the interference fringes. The F-P interferometric fiber-optic sensors can be used for many scientific and technological applications.
机译:我们回顾了我们在Fabry-Perot(F-P)干涉式光纤传感器上具有各种应用的工作。我们给出了F-P干涉式光纤传感器的一般模型,包括由光束发散和Gouy相移引起的衍射损耗。基于在单模光纤末端上形成的F-P腔的不同结构,F-P干涉光学传感器已扩展到液体和固体的折射率(RI),温度以及小位移的测量。液体和固体的RI可以通过监视与菲涅耳反射有关的条纹对比度来获得,而环境温度和较小的位移可以通过监视干涉条纹的波长偏移来获得。 F-P干涉式光纤传感器可用于许多科学和技术应用。

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