All-fiber-optic vector magnetic field sensor based on side-polished fiber and magnetic fluid
| Autor: | Xinjie Li, Yongliang Zhao, Jilei Yao, Zixuan Jia, Zhongxue Han, Zijian Hao, Rui Zhang, Shengli Pu, Dihui Li, Yongxi Li |
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| Rok vydání: | 2019 |
| Předmět: |
Optical fiber cable
Materials science Field (physics) business.industry Physics::Optics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Symmetry (physics) law.invention Magnetic field 010309 optics Section (fiber bundle) Optics law 0103 physical sciences Fiber 0210 nano-technology business Axial symmetry Refractive index |
| Zdroj: | Optics Express. 27:35182 |
| ISSN: | 1094-4087 |
| Popis: | A kind of compact all-fiber-optic vector magnetic sensor is proposed and demonstrated. The sensor consists of a side-polished-fiber (SPF)-integrated with singlemode-no core-singlemode (SNS) fiber structure. A section of side-polished fiber breaks the axially symmetry of the composite structure. The as-fabricated sensor supports vector sensing and has a magnetic field strength sensitivity of up to -2370 pm/mT over 2-6 mT range. The physical mechanism is that the modal interference is strongly influenced by the refractive index (RI) near the side-polished surface. The advantages of the proposed sensor lie in low cost, simple structure and easy manufacture, which make it attractive in the field of magnetic field vector sensing. |
| Databáze: | OpenAIRE |
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