Orientation-dependent fiber-optic inclinometer based on core-offset michelson interferometer
Abstract An in-fiber Michelson interferometer (MI)-based inclinometer, which consists of misalignment-spliced fiber with end coating, is proposed and experimentally demonstrated. The incident light divided at the misalignment-spliced joint is reflected at the end coating, and then re-coupled into th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-12089-5 |
| _version_ | 1817988326794199040 |
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| author | Huajie Wang Laifang Zheng Junsheng Zhang Jijun Liu |
| author_facet | Huajie Wang Laifang Zheng Junsheng Zhang Jijun Liu |
| author_sort | Huajie Wang |
| collection | DOAJ |
| description | Abstract An in-fiber Michelson interferometer (MI)-based inclinometer, which consists of misalignment-spliced fiber with end coating, is proposed and experimentally demonstrated. The incident light divided at the misalignment-spliced joint is reflected at the end coating, and then re-coupled into the fiber core. Due to the phase difference between the core mode and the $$m{\text{th}}$$ m th cladding mode, a typical MI is formed. The fiber near the misalignment-spliced joint is inserted in two capillary quartz tubes. The tilt of the capillary quartz tube leads to a significant deformation and curvature of the misalignment-spliced joint, which causes the wavelength and intensity of the MI spectrum to change. The experimental results indicate a good response within the angle range of 0°–50°. Both the wavelength modulation and intensity modulation are realized, with sensitivities of 0.55 nm/deg and 0.17 dB/deg, respectively. Moreover, the sensor shows a strong orientation dependence due to the asymmetric structure in the misalignment-spliced joint. |
| first_indexed | 2024-04-14T00:32:54Z |
| format | Article |
| id | doaj.art-3e50197125d9474ba6d409eb36eb5a7e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-14T00:32:54Z |
| publishDate | 2022-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-3e50197125d9474ba6d409eb36eb5a7e2022-12-22T02:22:29ZengNature PortfolioScientific Reports2045-23222022-05-011211710.1038/s41598-022-12089-5Orientation-dependent fiber-optic inclinometer based on core-offset michelson interferometerHuajie Wang0Laifang Zheng1Junsheng Zhang2Jijun Liu3Department of Electronic Engineering, Taiyuan Institute of TechnologyDepartment of Electronic Engineering, Taiyuan Institute of TechnologyDepartment of Electronic Engineering, Taiyuan Institute of TechnologyDepartment of Electronic Engineering, Taiyuan Institute of TechnologyAbstract An in-fiber Michelson interferometer (MI)-based inclinometer, which consists of misalignment-spliced fiber with end coating, is proposed and experimentally demonstrated. The incident light divided at the misalignment-spliced joint is reflected at the end coating, and then re-coupled into the fiber core. Due to the phase difference between the core mode and the $$m{\text{th}}$$ m th cladding mode, a typical MI is formed. The fiber near the misalignment-spliced joint is inserted in two capillary quartz tubes. The tilt of the capillary quartz tube leads to a significant deformation and curvature of the misalignment-spliced joint, which causes the wavelength and intensity of the MI spectrum to change. The experimental results indicate a good response within the angle range of 0°–50°. Both the wavelength modulation and intensity modulation are realized, with sensitivities of 0.55 nm/deg and 0.17 dB/deg, respectively. Moreover, the sensor shows a strong orientation dependence due to the asymmetric structure in the misalignment-spliced joint.https://doi.org/10.1038/s41598-022-12089-5 |
| spellingShingle | Huajie Wang Laifang Zheng Junsheng Zhang Jijun Liu Orientation-dependent fiber-optic inclinometer based on core-offset michelson interferometer Scientific Reports |
| title | Orientation-dependent fiber-optic inclinometer based on core-offset michelson interferometer |
| title_full | Orientation-dependent fiber-optic inclinometer based on core-offset michelson interferometer |
| title_fullStr | Orientation-dependent fiber-optic inclinometer based on core-offset michelson interferometer |
| title_full_unstemmed | Orientation-dependent fiber-optic inclinometer based on core-offset michelson interferometer |
| title_short | Orientation-dependent fiber-optic inclinometer based on core-offset michelson interferometer |
| title_sort | orientation dependent fiber optic inclinometer based on core offset michelson interferometer |
| url | https://doi.org/10.1038/s41598-022-12089-5 |
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