| Autor: |
Yue Wu, Yu Liu, Haoran Zhuang, Juan Cao, Yongjie Yang, Xiaojun Zhu, Dan Sun, Yuechun Shi, Rumao Tao |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Micromachines, Vol 15, Iss 8, p 963 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2072-666X |
| DOI: |
10.3390/mi15080963 |
| Popis: |
This paper introduces a new high-sensitivity curvature fiber sensor based on a miniature two-path Mach–Zehnder interferometer (MTP-MZI). The sensor is fabricated by coupling and fusing the multimode fiber (MMF) with the single-mode fiber (SMF) using arc fusion technology (AFT), resulting in a centimeter-level two-path MZI structure. The sensor represents an innovative approach to MZI coupling technology, which reduces device size, simplifies manufacturing, and lowers costs. In curvature-sensing experiments, the MTP-MZI sensor achieves a maximum curvature sensitivity of −96.70 dB/m−1 in the curvature range of 0.0418 m−1 to 0.0888 m−1, which is an extremely high sensitivity among intensity-modulated curvature sensors. Additionally, temperature-sensing measurements of the MTP-MZI sensor show a maximum temperature sensitivity of 212 pm/°C in the range of 30 °C to 70 °C, which is low temperature sensitivity and solves the cross-sensitivity problem. Thanks to the miniature two-path structure of the MTP-MZI, it provides a new perspective for developing multidimensional and multiparameter measurement methods in MZI fiber sensors. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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