A Novel MZI Fiber Sensor with Enhanced Curvature and Strain Sensitivity Based on Four-Core Fiber
We present a high-sensitivity curvature and strain Mach–Zehnder interferometer (MZI) fiber sensor based on a configuration of no-core fiber (NCF) and four-core fiber (FCF). We used an optical fiber fusion splicer to directly splice a segment of FCF between two segments of NCF, with both the FCF and...
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MDPI AG
2024-11-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/15/12/1427 |
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| author | Xiaojun Zhu Feijie Chen Haoran Zhuang Jiayi Qian Hai Liu Juan Cao Yuechun Shi Xia Wang Wuming Wu |
| author_facet | Xiaojun Zhu Feijie Chen Haoran Zhuang Jiayi Qian Hai Liu Juan Cao Yuechun Shi Xia Wang Wuming Wu |
| author_sort | Xiaojun Zhu |
| collection | DOAJ |
| description | We present a high-sensitivity curvature and strain Mach–Zehnder interferometer (MZI) fiber sensor based on a configuration of no-core fiber (NCF) and four-core fiber (FCF). We used an optical fiber fusion splicer to directly splice a segment of FCF between two segments of NCF, with both the FCF and NCF made of SiO<sub>2</sub>, where the FCF exhibits multi-path interference characteristics that allow for higher sensitivity. The NCF, with its self-focusing property, excites higher-order modes, which split and transmit it into the four cores of the FCF. The experimental results show that within a curvature range of 0.0104 m<sup>−1</sup>–0.1515 m<sup>−1</sup>, the maximum sensitivity can reach −78.04 dB/m<sup>−1</sup> with a high linear value of ~0.99. Additionally, the strain response is also experimentally studied. In the range of 0–600 με, the maximum strain sensitivity is −6.49 pm/με. The sensor demonstrates high curvature and strain sensitivity, indicating its potential applications in sensing measurements. |
| format | Article |
| id | doaj-art-c69074ed97ad4c5e95277bc91d973df2 |
| institution | Kabale University |
| issn | 2072-666X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-c69074ed97ad4c5e95277bc91d973df22024-12-27T14:40:38ZengMDPI AGMicromachines2072-666X2024-11-011512142710.3390/mi15121427A Novel MZI Fiber Sensor with Enhanced Curvature and Strain Sensitivity Based on Four-Core FiberXiaojun Zhu0Feijie Chen1Haoran Zhuang2Jiayi Qian3Hai Liu4Juan Cao5Yuechun Shi6Xia Wang7Wuming Wu8School of Microelectronics and Integrated Circuits (Jiangsu Key Laboratory of Semi. Dev. & IC Design, Package and Test), Nantong University, Nantong 226019, ChinaSchool of Information Science and Technology, Nantong University, Nantong 226019, ChinaSchool of Information Science and Technology, Nantong University, Nantong 226019, ChinaSchool of Information Science and Technology, Nantong University, Nantong 226019, ChinaSchool of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Information Science and Technology, Nantong University, Nantong 226019, ChinaYongjiang Laboratory, Ningbo 315202, ChinaSchool of Microelectronics and Integrated Circuits (Jiangsu Key Laboratory of Semi. Dev. & IC Design, Package and Test), Nantong University, Nantong 226019, ChinaSchool of Electronic Science and Engineering, Hunan Institute of Information Technology, Changsha 410151, ChinaWe present a high-sensitivity curvature and strain Mach–Zehnder interferometer (MZI) fiber sensor based on a configuration of no-core fiber (NCF) and four-core fiber (FCF). We used an optical fiber fusion splicer to directly splice a segment of FCF between two segments of NCF, with both the FCF and NCF made of SiO<sub>2</sub>, where the FCF exhibits multi-path interference characteristics that allow for higher sensitivity. The NCF, with its self-focusing property, excites higher-order modes, which split and transmit it into the four cores of the FCF. The experimental results show that within a curvature range of 0.0104 m<sup>−1</sup>–0.1515 m<sup>−1</sup>, the maximum sensitivity can reach −78.04 dB/m<sup>−1</sup> with a high linear value of ~0.99. Additionally, the strain response is also experimentally studied. In the range of 0–600 με, the maximum strain sensitivity is −6.49 pm/με. The sensor demonstrates high curvature and strain sensitivity, indicating its potential applications in sensing measurements.https://www.mdpi.com/2072-666X/15/12/1427fiber optic sensorMach–Zehnder interferometerfour-core fiberno-core fibercurvature sensor |
| spellingShingle | Xiaojun Zhu Feijie Chen Haoran Zhuang Jiayi Qian Hai Liu Juan Cao Yuechun Shi Xia Wang Wuming Wu A Novel MZI Fiber Sensor with Enhanced Curvature and Strain Sensitivity Based on Four-Core Fiber Micromachines fiber optic sensor Mach–Zehnder interferometer four-core fiber no-core fiber curvature sensor |
| title | A Novel MZI Fiber Sensor with Enhanced Curvature and Strain Sensitivity Based on Four-Core Fiber |
| title_full | A Novel MZI Fiber Sensor with Enhanced Curvature and Strain Sensitivity Based on Four-Core Fiber |
| title_fullStr | A Novel MZI Fiber Sensor with Enhanced Curvature and Strain Sensitivity Based on Four-Core Fiber |
| title_full_unstemmed | A Novel MZI Fiber Sensor with Enhanced Curvature and Strain Sensitivity Based on Four-Core Fiber |
| title_short | A Novel MZI Fiber Sensor with Enhanced Curvature and Strain Sensitivity Based on Four-Core Fiber |
| title_sort | novel mzi fiber sensor with enhanced curvature and strain sensitivity based on four core fiber |
| topic | fiber optic sensor Mach–Zehnder interferometer four-core fiber no-core fiber curvature sensor |
| url | https://www.mdpi.com/2072-666X/15/12/1427 |
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