Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers
The sensitivity and noise of an all-fiber optic current transformer (AFOCT) scheme named resonant AFOCT are analyzed, which senses the current information by measuring the frequency difference between clockwise and counterclockwise resonances inside a fiber ring resonator (FRR). Compared with polari...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10552908/ |
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| author | Zhiguo Jiang Lixi Zhang Guozhong Wang Lijun Jin |
| author_facet | Zhiguo Jiang Lixi Zhang Guozhong Wang Lijun Jin |
| author_sort | Zhiguo Jiang |
| collection | DOAJ |
| description | The sensitivity and noise of an all-fiber optic current transformer (AFOCT) scheme named resonant AFOCT are analyzed, which senses the current information by measuring the frequency difference between clockwise and counterclockwise resonances inside a fiber ring resonator (FRR). Compared with polarization-type and interference-type AFOCT, the sensitivity of the resonant AFOCT can be improved by increasing the finesse of the FRR. The mathematical model of the resonant AFOCT is established, and the sensitivity expression of the resonant AFOCT limited by the sensitivity of the photodetector is derived. For the small current measurement of 1 mA level, the carrier suppression level of phase modulation is required to be better than <inline-formula><tex-math notation="LaTeX">${{\rho }_{\text{ccw}}}{{\rho }_{\text{cw}}}{\rm{ = }} - \mathrm{110 \, dB}$</tex-math></inline-formula>, and the intensity of unwanted polarization eigenstate of the FRR should be suppressed to less than −68 dBm. The non-ideal characteristics of fiber quarter-waveplate and the residual linear birefringence of spun fiber mainly affect the scale factor of the resonant AFOCT. The resonant AFOCT will be an important way to achieve high-precision of the current transformer. |
| format | Article |
| id | doaj-art-93cb6e3feca04c68aaffa3368ab4b0e5 |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-93cb6e3feca04c68aaffa3368ab4b0e52025-07-02T00:00:15ZengIEEEIEEE Photonics Journal1943-06552024-01-011641810.1109/JPHOT.2024.341223710552908Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current TransformersZhiguo Jiang0https://orcid.org/0000-0002-1764-0827Lixi Zhang1Guozhong Wang2Lijun Jin3https://orcid.org/0000-0003-0771-5378College of Electronic and Information Engineering, Tongji University, Shanghai, ChinaZhejiang Fangyuan Electrical Equipment Testing Company, Ltd., Jiaxing, ChinaZhejiang Fangyuan Electrical Equipment Testing Company, Ltd., Jiaxing, ChinaCollege of Electronic and Information Engineering, Tongji University, Shanghai, ChinaThe sensitivity and noise of an all-fiber optic current transformer (AFOCT) scheme named resonant AFOCT are analyzed, which senses the current information by measuring the frequency difference between clockwise and counterclockwise resonances inside a fiber ring resonator (FRR). Compared with polarization-type and interference-type AFOCT, the sensitivity of the resonant AFOCT can be improved by increasing the finesse of the FRR. The mathematical model of the resonant AFOCT is established, and the sensitivity expression of the resonant AFOCT limited by the sensitivity of the photodetector is derived. For the small current measurement of 1 mA level, the carrier suppression level of phase modulation is required to be better than <inline-formula><tex-math notation="LaTeX">${{\rho }_{\text{ccw}}}{{\rho }_{\text{cw}}}{\rm{ = }} - \mathrm{110 \, dB}$</tex-math></inline-formula>, and the intensity of unwanted polarization eigenstate of the FRR should be suppressed to less than −68 dBm. The non-ideal characteristics of fiber quarter-waveplate and the residual linear birefringence of spun fiber mainly affect the scale factor of the resonant AFOCT. The resonant AFOCT will be an important way to achieve high-precision of the current transformer.https://ieeexplore.ieee.org/document/10552908/Optical fiber sensingall-fiber optic current transformerfiber ring resonatorsensitivity |
| spellingShingle | Zhiguo Jiang Lixi Zhang Guozhong Wang Lijun Jin Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers IEEE Photonics Journal Optical fiber sensing all-fiber optic current transformer fiber ring resonator sensitivity |
| title | Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers |
| title_full | Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers |
| title_fullStr | Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers |
| title_full_unstemmed | Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers |
| title_short | Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers |
| title_sort | sensitivity and noise analysis of resonant all fiber optic current transformers |
| topic | Optical fiber sensing all-fiber optic current transformer fiber ring resonator sensitivity |
| url | https://ieeexplore.ieee.org/document/10552908/ |
| work_keys_str_mv | AT zhiguojiang sensitivityandnoiseanalysisofresonantallfiberopticcurrenttransformers AT lixizhang sensitivityandnoiseanalysisofresonantallfiberopticcurrenttransformers AT guozhongwang sensitivityandnoiseanalysisofresonantallfiberopticcurrenttransformers AT lijunjin sensitivityandnoiseanalysisofresonantallfiberopticcurrenttransformers |