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首页> 外文期刊>Applied optics >Microwave interrogated large core fused silica fiber Michelson interferometer for strain sensing
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Microwave interrogated large core fused silica fiber Michelson interferometer for strain sensing

机译：用于应变传感的微波询问大芯熔融石英光纤迈克尔逊干涉仪

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摘要

A Michelson-type large core optical fiber sensor has been developed, which is designed based on the optical carrier- based microwave interferometry technique, and fabricated by using two pieces of 200-mu m diameter fused silica core fiber as two arms of the Michelson interferometer. The interference fringe pattern caused by the optical path difference of the two arms is interrogated in the microwave domain, where the fringe visibility of 40 dB has easily been obtained. The strain sensing at both room temperature and high temperatures has been demonstrated by using such a sensor. Experimental results show that this sensor has a linear response to the applied strain, and also has relatively low temperature-strain cross talk. The dopant-free quality of the fused silica fiber provides high possibility for the sensor to have promising strain sensing performance in a high temperature environment. (C) 2015 Optical Society of America
机译：已经开发了一种基于迈克尔逊型大芯光纤传感器，该传感器是基于基于光载波的微波干涉测量技术进行设计的，并使用两根直径为200μm的熔融石英芯光纤作为迈克尔逊干涉仪的两个臂来制造。由两个臂的光程差引起的干涉条纹图案在微波域中受到了质疑，在该微波领域中，容易获得40 dB的条纹可见性。通过使用这种传感器已经证明了在室温和高温下的应变感测。实验结果表明，该传感器对施加的应变具有线性响应，并且具有相对较低的温度-应变串扰。熔融石英纤维的无掺杂质量为传感器提供了在高温环境中具有良好的应变传感性能的可能性。 （C）2015年美国眼镜学会

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