Remote Magnetic Field Sensor Based on Intracavity Absorption of Evanescent Field
In this paper, a remote magnetic field sensor based on intracavity absorption of evanescent field is experimentally demonstrated. A single-mode–no-core–single-mode (SNCS) fiber coated with magnetic fluid (MF) is inserted into a fiber ring laser through a circulator and a 3-dB c...
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| Format: | Article |
| Language: | English |
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IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7425144/ |
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| author | Jia Shi Yuye Wang Degang Xu Genghua Su Haiwei Zhang Jiachen Feng Chao Yan Shijie Fu Jianquan Yao |
| author_facet | Jia Shi Yuye Wang Degang Xu Genghua Su Haiwei Zhang Jiachen Feng Chao Yan Shijie Fu Jianquan Yao |
| author_sort | Jia Shi |
| collection | DOAJ |
| description | In this paper, a remote magnetic field sensor based on intracavity absorption of evanescent field is experimentally demonstrated. A single-mode–no-core–single-mode (SNCS) fiber coated with magnetic fluid (MF) is inserted into a fiber ring laser through a circulator and a 3-dB coupler, and it works as the filter and sensing head simultaneously. As the light oscillates in the cavity of the fiber ring laser, intracavity absorption of the evanescent field will be induced in the interface of the no-core fiber and MF. We obtain a magnetic field sensor with a narrow 3-dB bandwidth that is less than 0.05 nm, a high signal-to-noise ratio ∼40 dB, and magnetic sensitivity of 52.1 pm/mT and −0.3679 dBm/mT. Moreover, experiments show that it is convenient to achieve remote sensing by selecting different lengths of the transmission optical fiber connecting the circulator and 3-dB coupler, which has a slight impact on the sensitivity. |
| format | Article |
| id | doaj-art-564ebbfb2b2341ba8dbd7d02c8417f78 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-564ebbfb2b2341ba8dbd7d02c8417f782025-08-20T03:15:13ZengIEEEIEEE Photonics Journal1943-06552016-01-01821710.1109/JPHOT.2016.25380797425144Remote Magnetic Field Sensor Based on Intracavity Absorption of Evanescent FieldJia Shi0Yuye Wang1Degang Xu2Genghua Su3Haiwei Zhang4Jiachen Feng5Chao Yan6Shijie Fu7Jianquan Yao8Inst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaInst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaInst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaInst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaInst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaInst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaInst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaInst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaInst. of Laser & Optoelectron., Tianjin Univ., Tianjin, ChinaIn this paper, a remote magnetic field sensor based on intracavity absorption of evanescent field is experimentally demonstrated. A single-mode–no-core–single-mode (SNCS) fiber coated with magnetic fluid (MF) is inserted into a fiber ring laser through a circulator and a 3-dB coupler, and it works as the filter and sensing head simultaneously. As the light oscillates in the cavity of the fiber ring laser, intracavity absorption of the evanescent field will be induced in the interface of the no-core fiber and MF. We obtain a magnetic field sensor with a narrow 3-dB bandwidth that is less than 0.05 nm, a high signal-to-noise ratio ∼40 dB, and magnetic sensitivity of 52.1 pm/mT and −0.3679 dBm/mT. Moreover, experiments show that it is convenient to achieve remote sensing by selecting different lengths of the transmission optical fiber connecting the circulator and 3-dB coupler, which has a slight impact on the sensitivity.https://ieeexplore.ieee.org/document/7425144/Fiber optics sensorsremote sensingintracavity sensing |
| spellingShingle | Jia Shi Yuye Wang Degang Xu Genghua Su Haiwei Zhang Jiachen Feng Chao Yan Shijie Fu Jianquan Yao Remote Magnetic Field Sensor Based on Intracavity Absorption of Evanescent Field IEEE Photonics Journal Fiber optics sensors remote sensing intracavity sensing |
| title | Remote Magnetic Field Sensor Based on Intracavity Absorption of Evanescent Field |
| title_full | Remote Magnetic Field Sensor Based on Intracavity Absorption of Evanescent Field |
| title_fullStr | Remote Magnetic Field Sensor Based on Intracavity Absorption of Evanescent Field |
| title_full_unstemmed | Remote Magnetic Field Sensor Based on Intracavity Absorption of Evanescent Field |
| title_short | Remote Magnetic Field Sensor Based on Intracavity Absorption of Evanescent Field |
| title_sort | remote magnetic field sensor based on intracavity absorption of evanescent field |
| topic | Fiber optics sensors remote sensing intracavity sensing |
| url | https://ieeexplore.ieee.org/document/7425144/ |
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