Research on Measurement Techniques for Integrated Optical Waveguide-Based Electric Field Sensors

作者：Feng Zhou, Zhenghao Chai, Yinglong Diao, Zhaozhi Long · 发表于：IEEE Access · 年份：2025 · DOI：10.1109/access.2025.3569862 · 被引用次数：6 · 研究领域：Magneto-Optical Properties and Applications、Advanced Fiber Optic Sensors、Photonic and Optical Devices

The growing demand for high-precision sensing technologies in power systems has po-sitioned the development of novel electric field measurement tools as a critical metro-logical challenge. This study presents a broadband photoelectric electric field sensor based on the Mach-Zehnder interference phenomenon in asymmetric straight wave-guides. Furthermore, a three-dimensional electric field measurement system was de-veloped through systematic investigation of multidimensional field measurement methodologies. Experimental results demonstrate that the proposed device achieves broadband electric field measurement with linearity up to 0.9996 and pow-er-frequency measurement accuracy exceeding 97%. The system demonstrates con-current measurement capability for both lightning impulse waveforms and operation-al power frequency electric fields. The synthesized three-dimensional measurement error remains below 4%, enabling precise omnidirectional electric field detection.