Optical voltage sensors: principle, problem and research proposal

Changsheng Li

doi:10.1117/12.2248375

25 October 2016 Optical voltage sensors: principle, problem and research proposal

Changsheng Li

Proceedings Volume 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage; 101581N (2016) https://doi.org/10.1117/12.2248375
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

Sensing principles and main problems to be solved for optical voltage sensors are briefly reviewed. Optical effects used for voltage sensing usually include electro-optic Pockels and Kerr effects, electro-gyration effect, elasto-optical effect, and electroluminescent effects, etc. In principle, typical optical voltage sensor is based on electro-optic Pockels crystals and closed-loop signal detection scheme. Main problems to be solved for optical voltage sensors include: how to remove influence of unwanted multiple optical effects on voltage sensing performance; how to select or develop a proper voltage sensing material and element; how to keep optical phase bias to be stable under temperature fluctuation and vibration; how to achieve dc voltage sensing, etc. In order to suppress the influence of unwanted optical effects and light beam coupling-related loss on voltage sensing signals, we may pay more attention to all-fiber and waveguide voltage sensors. Voltage sensors based on electroluminescent effects are also promising in some application fields due to their compact configuration, low cost and potential long-term reliability.

Citation Download Citation

Changsheng Li "Optical voltage sensors: principle, problem and research proposal", Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101581N (25 October 2016); https://doi.org/10.1117/12.2248375

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