A DC electric field sensor based on optical waveguide-based field mill
Based on the Pockels effect of the lithium niobate crystal, an optical field mill DC electric field sensor has been developed. The structural parameters of the rotating shield electrode are optimized by using the COMSOL Multiphysics simulation software. When the inner radius of the shield electrode...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-06-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0255458 |
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| author | Wei Song Zhenyu Zhan Xiaokuo Kou Manling Dong Xiaochuan Huang Weifeng Xin Zeyan Shi Shaoqi He Jiahong Zhang |
| author_facet | Wei Song Zhenyu Zhan Xiaokuo Kou Manling Dong Xiaochuan Huang Weifeng Xin Zeyan Shi Shaoqi He Jiahong Zhang |
| author_sort | Wei Song |
| collection | DOAJ |
| description | Based on the Pockels effect of the lithium niobate crystal, an optical field mill DC electric field sensor has been developed. The structural parameters of the rotating shield electrode are optimized by using the COMSOL Multiphysics simulation software. When the inner radius of the shield electrode r = 5 mm, the outer radius R = 25 mm, and the vertical distance between the sensing electrode and the shield electrode d = 2 mm, achieving the maximum modulation field amplitude and optimal performance. Finally, the rotating shield electrode is incorporated with an asymmetric Mach–Zehnder interferometer optical waveguide, resulting in a field mill DC electric field sensor. Experimental results show that the sensor can transfer a DC electric field into an AC electric field with a frequency of 222.2 Hz. The sensitivity of the sensor is determined to be 0.54 mV/(kV/m), with a minimum detectable electric field of 0.37 kV/m. Under a 1 dB compression condition, the maximum undistorted measurable DC electric field Emax is 179.5 kV/m. |
| format | Article |
| id | doaj-art-14aa4a2adfc14af1b1af2f74ee28ace8 |
| institution | Kabale University |
| issn | 2158-3226 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj-art-14aa4a2adfc14af1b1af2f74ee28ace82025-08-20T03:31:06ZengAIP Publishing LLCAIP Advances2158-32262025-06-01156065006065006-910.1063/5.0255458A DC electric field sensor based on optical waveguide-based field millWei Song0Zhenyu Zhan1Xiaokuo Kou2Manling Dong3Xiaochuan Huang4Weifeng Xin5Zeyan Shi6Shaoqi He7Jiahong Zhang8State Grid Henan Electric Power Company, Zhengzhou, Henan 450000, ChinaState Grid Henan Electric Power Company, Zhengzhou, Henan 450000, ChinaState Grid Kaifeng Electric Power Supply Company, Kaifeng, Henan 475000, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, Henan 450052, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, Henan 450052, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, Henan 450052, ChinaState Grid Henan Electric Power Research Institute, Zhengzhou, Henan 450052, ChinaFaculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, ChinaBased on the Pockels effect of the lithium niobate crystal, an optical field mill DC electric field sensor has been developed. The structural parameters of the rotating shield electrode are optimized by using the COMSOL Multiphysics simulation software. When the inner radius of the shield electrode r = 5 mm, the outer radius R = 25 mm, and the vertical distance between the sensing electrode and the shield electrode d = 2 mm, achieving the maximum modulation field amplitude and optimal performance. Finally, the rotating shield electrode is incorporated with an asymmetric Mach–Zehnder interferometer optical waveguide, resulting in a field mill DC electric field sensor. Experimental results show that the sensor can transfer a DC electric field into an AC electric field with a frequency of 222.2 Hz. The sensitivity of the sensor is determined to be 0.54 mV/(kV/m), with a minimum detectable electric field of 0.37 kV/m. Under a 1 dB compression condition, the maximum undistorted measurable DC electric field Emax is 179.5 kV/m.http://dx.doi.org/10.1063/5.0255458 |
| spellingShingle | Wei Song Zhenyu Zhan Xiaokuo Kou Manling Dong Xiaochuan Huang Weifeng Xin Zeyan Shi Shaoqi He Jiahong Zhang A DC electric field sensor based on optical waveguide-based field mill AIP Advances |
| title | A DC electric field sensor based on optical waveguide-based field mill |
| title_full | A DC electric field sensor based on optical waveguide-based field mill |
| title_fullStr | A DC electric field sensor based on optical waveguide-based field mill |
| title_full_unstemmed | A DC electric field sensor based on optical waveguide-based field mill |
| title_short | A DC electric field sensor based on optical waveguide-based field mill |
| title_sort | dc electric field sensor based on optical waveguide based field mill |
| url | http://dx.doi.org/10.1063/5.0255458 |
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