Sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivity
In this paper, a novel refractive index sensor based on photonic crystal fiber and Sagnac ring is studied. The sensor adopts Mach-Zehnder interference principle. The production and experimental steps are as follows: The first step is to fuse the single-mode fiber with the photonic crystal fiber to f...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-09-01
|
| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2022.1028856/full |
| _version_ | 1798001592261148672 |
|---|---|
| author | Zhiying Liu Hao Li Zhiwen Zhang |
| author_facet | Zhiying Liu Hao Li Zhiwen Zhang |
| author_sort | Zhiying Liu |
| collection | DOAJ |
| description | In this paper, a novel refractive index sensor based on photonic crystal fiber and Sagnac ring is studied. The sensor adopts Mach-Zehnder interference principle. The production and experimental steps are as follows: The first step is to fuse the single-mode fiber with the photonic crystal fiber to form a basic sensing unit. The second part uses the coupling birefringence effect of the tapered coupler to fold and fuse the single-mode fiber together to form the Sagnac interferometer. Through this structure, the sensor has the characteristics similar to the polished photonic crystal fiber sensor, while the fabrication complexity is greatly reduced. The refractive index sensing capability and temperature stability of the two structures are analyzed experimentally. Simulation results show that the structure has high birefringence effect. Experimental results show that the proposed photonic crystal fiber combined with Sagnac ring sensor has good sensing performance in the refractive index range of 1.3355–1.3560. Compared with the sensor structure without Sagnac ring, the performance is greatly improved, the maximum sensitivity is up to 234 nm/RIU, and it has good temperature stability. The sensor has the advantages of miniaturization, high integration and high sensitivity, and can be used in industry, chemical detection, agriculture and other fields. |
| first_indexed | 2024-04-11T11:38:43Z |
| format | Article |
| id | doaj.art-2e5b0b318597481ebe1d73da5ce8620d |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-11T11:38:43Z |
| publishDate | 2022-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-2e5b0b318597481ebe1d73da5ce8620d2022-12-22T04:25:53ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-09-011010.3389/fphy.2022.10288561028856Sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivityZhiying Liu0Hao Li1Zhiwen Zhang2School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun, ChinaSchool of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun, ChinaHeilongjiang Province Key Laboratory of Laser Spectroscopy Technology and Application, Harbin University of Science and Technology, Harbin, ChinaIn this paper, a novel refractive index sensor based on photonic crystal fiber and Sagnac ring is studied. The sensor adopts Mach-Zehnder interference principle. The production and experimental steps are as follows: The first step is to fuse the single-mode fiber with the photonic crystal fiber to form a basic sensing unit. The second part uses the coupling birefringence effect of the tapered coupler to fold and fuse the single-mode fiber together to form the Sagnac interferometer. Through this structure, the sensor has the characteristics similar to the polished photonic crystal fiber sensor, while the fabrication complexity is greatly reduced. The refractive index sensing capability and temperature stability of the two structures are analyzed experimentally. Simulation results show that the structure has high birefringence effect. Experimental results show that the proposed photonic crystal fiber combined with Sagnac ring sensor has good sensing performance in the refractive index range of 1.3355–1.3560. Compared with the sensor structure without Sagnac ring, the performance is greatly improved, the maximum sensitivity is up to 234 nm/RIU, and it has good temperature stability. The sensor has the advantages of miniaturization, high integration and high sensitivity, and can be used in industry, chemical detection, agriculture and other fields.https://www.frontiersin.org/articles/10.3389/fphy.2022.1028856/fullphotonic crystal fiberSagnac ringrefractive index sensorhigh birefringencetemperature sensor |
| spellingShingle | Zhiying Liu Hao Li Zhiwen Zhang Sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivity Frontiers in Physics photonic crystal fiber Sagnac ring refractive index sensor high birefringence temperature sensor |
| title | Sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivity |
| title_full | Sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivity |
| title_fullStr | Sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivity |
| title_full_unstemmed | Sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivity |
| title_short | Sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivity |
| title_sort | sagnac ring and photonic crystal fiber structure refractive index sensor with high birefringence and low temperature sensitivity |
| topic | photonic crystal fiber Sagnac ring refractive index sensor high birefringence temperature sensor |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2022.1028856/full |
| work_keys_str_mv | AT zhiyingliu sagnacringandphotoniccrystalfiberstructurerefractiveindexsensorwithhighbirefringenceandlowtemperaturesensitivity AT haoli sagnacringandphotoniccrystalfiberstructurerefractiveindexsensorwithhighbirefringenceandlowtemperaturesensitivity AT zhiwenzhang sagnacringandphotoniccrystalfiberstructurerefractiveindexsensorwithhighbirefringenceandlowtemperaturesensitivity |