Abstract
A fiber-optic polarization interferometer with two electrooptic elements (sensor and additional modulator) designed for measuring electric field intensity is suggested and analyzed. The paper focuses on the theoretical and experimental demonstration of the principles of operation of fiber-optic circuits that generate and process the optical signals and provide measurement. The advantage offered by our interferometer is that it allows, in contrast to conventional configurations, additional modulation of the phase difference between interfering waves by a modulator in the instrumental part of the device and the use of available methods of phase detection developed for fiber-optic interferometric sensors. A laboratory prototype has been successfully tested.
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Liokumovich, L.B., Medvedev, A.V. & Petrov, V.M. Fiber-optic polarization interferometer with an additional phase modulation for electric field measurements. Opt. Mem. Neural Networks 22, 21–27 (2013). https://doi.org/10.3103/S1060992X13010037
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DOI: https://doi.org/10.3103/S1060992X13010037