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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2511.09288 |
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| _version_ | 1866918223523348480 |
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| author | Huang, Qipeng Zeng, Shanmei Cui, Jingxian Htein, Lin Tam, Hwa-Yaw Hu, Xuehao Qu, Hang |
| author_facet | Huang, Qipeng Zeng, Shanmei Cui, Jingxian Htein, Lin Tam, Hwa-Yaw Hu, Xuehao Qu, Hang |
| contents | In this study, we propose a microfiber waveguide for temperature and air pressure measurement. To improve mechanical strength of the sensor, a C-shaped fiber is sandwiches between two single mode fibers (SMFs) by fusion splice. The microfiber waveguide is 3D printed between two SMFs to connect two fiber cores by two-photon polymerization technology. Due to multimode property of this printed waveguide, a Mach-Zehnder interferometer (MZI) is obtained. This sensor exhibits a high temperature sensitivity of 361 pm/°C at 25°C to 45°C and a high air pressure sensitivity of 55 pm/kPa from 300hpa to 1000hpa. The MZI sensor features significant advantages such as small size, high stability, and easy fabrication, without the need for complex post-processing, showing great potential and broad application prospects in many sensing applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_09288 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | 3D printed microfiber waveguide in C-shaped fiber for temperature and air pressure measurement Huang, Qipeng Zeng, Shanmei Cui, Jingxian Htein, Lin Tam, Hwa-Yaw Hu, Xuehao Qu, Hang Optics In this study, we propose a microfiber waveguide for temperature and air pressure measurement. To improve mechanical strength of the sensor, a C-shaped fiber is sandwiches between two single mode fibers (SMFs) by fusion splice. The microfiber waveguide is 3D printed between two SMFs to connect two fiber cores by two-photon polymerization technology. Due to multimode property of this printed waveguide, a Mach-Zehnder interferometer (MZI) is obtained. This sensor exhibits a high temperature sensitivity of 361 pm/°C at 25°C to 45°C and a high air pressure sensitivity of 55 pm/kPa from 300hpa to 1000hpa. The MZI sensor features significant advantages such as small size, high stability, and easy fabrication, without the need for complex post-processing, showing great potential and broad application prospects in many sensing applications. |
| title | 3D printed microfiber waveguide in C-shaped fiber for temperature and air pressure measurement |
| topic | Optics |
| url | https://arxiv.org/abs/2511.09288 |