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A novel magnetooptic sensor is proposed which is based on electrogyration compensation for the Faraday rotation angle in single lead molybdate (PbMoO4, PMO) crystal. The optical sensing unit is only composed of two polarizers and one single PMO crystal exhibiting both the Faraday and electrogyration effects. AC 50-Hz magnetic field in the range of 167 Gs has been measured by the method of electrogyration...
A novel optical voltage sensor is proposed by the use of single Fresnel rhomb bismuth germanate crystal. The optical sensing unit is only composed of one voltage sensing crystal and two prism polarizers. The distinguished feature is that the voltage sensing crystal is simultaneously used as a Fresnel rhomb quarter waveplate. An optical phase bias of is produced by two times of total internal...
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