Optical voltage sensor using single Fresnel rhomb Bi4Ge3O12 crystal

Changsheng Li; Rong Zeng

doi:10.1117/12.999655

30 November 2012 Optical voltage sensor using Fresnel rhomb Bi₄Ge₃O₁₂ crystal

Changsheng Li, Rong Zeng

Proceedings Volume 8561, Advanced Sensor Systems and Applications V; 85610K (2012) https://doi.org/10.1117/12.999655
Event: Photonics Asia, 2012, Beijing, China

Abstract

A novel optical voltage sensor is proposed and experimentally demonstrated by use of single Fresnel rhomb bismuth germanate crystal. Different from previous polarimetric voltage sensors, the proposed voltage sensor can provide the π/2 optical bias by two times of total internal reflection of light wave in the crystal, thus any additional quarter wave plate is not necessary. In principle, the influences of measurand voltage and temperature on the π/2 optical bias are neglectable. The 50Hz ac voltage in the range of 2~2000V is measured with good linearity.

Citation Download Citation

Changsheng Li and Rong Zeng "Optical voltage sensor using Fresnel rhomb Bi₄Ge₃O₁₂ crystal", Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 85610K (30 November 2012); https://doi.org/10.1117/12.999655

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