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Silica microwire-based interferometric electric field sensor

机译:基于硅胶微线的干涉电场传感器

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Silica microwire, as an optical waveguide whose diameter is close to or smaller than the wavelength of the guided light, is of great interest because it exhibits a number of excellent properties such as tight confinement, large evanescent fields, and great configurability. Here, we report a silica microwire-based compact photonic sensor for real-time detection of high electric field. This device contains an interferometer with propylene carbonate cladding. Based on the Kerr electro-optic effect of propylene carbonate, the applied intensive transient electric field can change the refractive index of propylene carbonate, which shifts the interferometric fringe. Therefore, the electric field could be demodulated by monitoring the fringe shift. The sensor was successfully used to detect alternating electric field with frequency of 50 Hz and impulse electric field with duration time of 200 mu s. This work lays a foundation for future applications in electric field sensing. (C) 2015 Optical Society of America
机译:二氧化硅微线作为直径接近或小于导光的波长的光波导,由于具有许多优良的性能,例如紧密的限制,大的渐逝场和良好的可配置性,因此引起人们极大的兴趣。在这里,我们报告了一种基于硅胶微线的紧凑型光子传感器,用于实时检测高电场。该设备包含带碳酸亚丙酯覆层的干涉仪。基于碳酸亚丙酯的Kerr电光效应,施加的强瞬变电场可以改变碳酸亚丙酯的折射率,从而改变干涉条纹。因此,可以通过监视条纹偏移来解调电场。该传感器已成功用于检测频率为50 Hz的交变电场和持续时间为200μs的脉冲电场。这项工作为将来在电场感应中的应用奠定了基础。 (C)2015年美国眼镜学会

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