Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMF
Distributed optical fiber sensors (DOFSs) have faced the challenge of measuring transverse stress along the fiber and the current main approach has been based on polarization coupling effect in polarization-maintaining fibers (PMFs), which has short sensing length and high dependence on direction of...
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9655503/ |
| _version_ | 1811234131405701120 |
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| author | Junchi Jia Yu Yang Mingqing Zuo Jian Cui Yuyang Gao Jinyi Yu Huang Yu Zhenrong Zhang Zhangyuan Chen Yongqi He Juhao Li |
| author_facet | Junchi Jia Yu Yang Mingqing Zuo Jian Cui Yuyang Gao Jinyi Yu Huang Yu Zhenrong Zhang Zhangyuan Chen Yongqi He Juhao Li |
| author_sort | Junchi Jia |
| collection | DOAJ |
| description | Distributed optical fiber sensors (DOFSs) have faced the challenge of measuring transverse stress along the fiber and the current main approach has been based on polarization coupling effect in polarization-maintaining fibers (PMFs), which has short sensing length and high dependence on direction of exerted stress. Instead, here we propose a novel distributed transverse stress sensor (DTSS) based on coupling effect between linearly-polarized (LP) modes in weakly-coupled few-mode-fibers (FMFs). In this scheme, multiple LP modes could be considered as independent spatial channels without stress perturbation because of ultralow inherent modal crosstalk, while quantifiable and spatially-resolvable mode coupling for a probe signal will occur under transverse stress satisfying phase-matching conditions. A proof-of-concept DTSS system is verified based on weakly-coupled two-mode fibers and mode-selective couplers for mode conversion. Moreover, we show that the scheme is little affected by mild common parameters including temperature, strain, twist, direction of stress, or state-of-polarization (SOP), which is crucial for accurate stress analysis under complex environmental conditions. The proposed DTSS scheme has simple structure, high flexibility for different sensing ranges and resolutions, and high collaborating capability with other sensing mechanisms. |
| first_indexed | 2024-04-12T11:31:30Z |
| format | Article |
| id | doaj.art-d0b8af24491b4edf9ec36a0416662a14 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-04-12T11:31:30Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-d0b8af24491b4edf9ec36a0416662a142022-12-22T03:35:01ZengIEEEIEEE Photonics Journal1943-06552022-01-011411610.1109/JPHOT.2021.31362579655503Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMFJunchi Jia0https://orcid.org/0000-0003-0411-1499Yu Yang1https://orcid.org/0000-0002-4324-7754Mingqing Zuo2Jian Cui3Yuyang Gao4https://orcid.org/0000-0002-0202-2292Jinyi Yu5Huang Yu6Zhenrong Zhang7https://orcid.org/0000-0003-1125-6637Zhangyuan Chen8https://orcid.org/0000-0001-7049-2379Yongqi He9Juhao Li10https://orcid.org/0000-0002-4913-6844State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaFiberhome Fujikura Optics Technology Company, Ltd., Wuhan, ChinaGuangxi Key Laboratory of Multimedia Communications and Network Technology, Guangxi University, Nanning, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics, Peking University, Beijing, ChinaDistributed optical fiber sensors (DOFSs) have faced the challenge of measuring transverse stress along the fiber and the current main approach has been based on polarization coupling effect in polarization-maintaining fibers (PMFs), which has short sensing length and high dependence on direction of exerted stress. Instead, here we propose a novel distributed transverse stress sensor (DTSS) based on coupling effect between linearly-polarized (LP) modes in weakly-coupled few-mode-fibers (FMFs). In this scheme, multiple LP modes could be considered as independent spatial channels without stress perturbation because of ultralow inherent modal crosstalk, while quantifiable and spatially-resolvable mode coupling for a probe signal will occur under transverse stress satisfying phase-matching conditions. A proof-of-concept DTSS system is verified based on weakly-coupled two-mode fibers and mode-selective couplers for mode conversion. Moreover, we show that the scheme is little affected by mild common parameters including temperature, strain, twist, direction of stress, or state-of-polarization (SOP), which is crucial for accurate stress analysis under complex environmental conditions. The proposed DTSS scheme has simple structure, high flexibility for different sensing ranges and resolutions, and high collaborating capability with other sensing mechanisms.https://ieeexplore.ieee.org/document/9655503/Distributed transverse stress sensorfew-mode fibersmode coupling effectoptical fiber sensors |
| spellingShingle | Junchi Jia Yu Yang Mingqing Zuo Jian Cui Yuyang Gao Jinyi Yu Huang Yu Zhenrong Zhang Zhangyuan Chen Yongqi He Juhao Li Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMF IEEE Photonics Journal Distributed transverse stress sensor few-mode fibers mode coupling effect optical fiber sensors |
| title | Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMF |
| title_full | Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMF |
| title_fullStr | Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMF |
| title_full_unstemmed | Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMF |
| title_short | Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMF |
| title_sort | distributed transverse stress sensor based on mode coupling in weakly coupled fmf |
| topic | Distributed transverse stress sensor few-mode fibers mode coupling effect optical fiber sensors |
| url | https://ieeexplore.ieee.org/document/9655503/ |
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