Salinity Sensing Characteristics Based on Optical Microfiber Coupler Interferometer
In this paper, we report a novel and compact sensor based on an optic microfiber coupler interferometer (OMCI) for seawater salinity application. The OMCI device is fabricated by connecting Faraday rotating mirrors to the two out-ports of the microfiber coupler, respectively. The sensor signal proce...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/7/3/77 |
| _version_ | 1827705756807331840 |
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| author | Lingjun Zhou Yang Yu Huimin Huang Yuyu Tao Kui Wen Guofeng Li Junbo Yang Zhenrong Zhang |
| author_facet | Lingjun Zhou Yang Yu Huimin Huang Yuyu Tao Kui Wen Guofeng Li Junbo Yang Zhenrong Zhang |
| author_sort | Lingjun Zhou |
| collection | DOAJ |
| description | In this paper, we report a novel and compact sensor based on an optic microfiber coupler interferometer (OMCI) for seawater salinity application. The OMCI device is fabricated by connecting Faraday rotating mirrors to the two out-ports of the microfiber coupler, respectively. The sensor signal processing is based on a wavelength demodulation technique. We theoretically analyze the sensing characteristics with different device structure parameters. Besides, the results show that the date reading error decreases with the thinner waist region and longer arm difference. Through the experiment, the reflection spectra red-shifted as the sea water salinity increased; the highest response sensitivity of the OMCI salinity sensor reached 303.7 pm/‰ for a range of 16.6–23.8‰, and the resolution was less than 0.03‰. This study provides a new technical solution for the development of practical optical fiber seawater salinity sensors. |
| first_indexed | 2024-03-10T16:10:16Z |
| format | Article |
| id | doaj.art-0dd74793b8c94b8d81e9f3c0006badf8 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T16:10:16Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-0dd74793b8c94b8d81e9f3c0006badf82023-11-20T14:29:57ZengMDPI AGPhotonics2304-67322020-09-01737710.3390/photonics7030077Salinity Sensing Characteristics Based on Optical Microfiber Coupler InterferometerLingjun Zhou0Yang Yu1Huimin Huang2Yuyu Tao3Kui Wen4Guofeng Li5Junbo Yang6Zhenrong Zhang7Guangxi Key Laboratory of Multimedia Communications and Network Technology, School of Computer, Electronic and Information, Guangxi University, Nanning 530004, ChinaCenter of Material Science, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, ChinaGuangxi Key Laboratory of Multimedia Communications and Network Technology, School of Computer, Electronic and Information, Guangxi University, Nanning 530004, ChinaGuangxi Key Laboratory of Multimedia Communications and Network Technology, School of Computer, Electronic and Information, Guangxi University, Nanning 530004, ChinaCenter of Material Science, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, ChinaGuangxi Key Laboratory of Multimedia Communications and Network Technology, School of Computer, Electronic and Information, Guangxi University, Nanning 530004, ChinaCenter of Material Science, College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, ChinaGuangxi Key Laboratory of Multimedia Communications and Network Technology, School of Computer, Electronic and Information, Guangxi University, Nanning 530004, ChinaIn this paper, we report a novel and compact sensor based on an optic microfiber coupler interferometer (OMCI) for seawater salinity application. The OMCI device is fabricated by connecting Faraday rotating mirrors to the two out-ports of the microfiber coupler, respectively. The sensor signal processing is based on a wavelength demodulation technique. We theoretically analyze the sensing characteristics with different device structure parameters. Besides, the results show that the date reading error decreases with the thinner waist region and longer arm difference. Through the experiment, the reflection spectra red-shifted as the sea water salinity increased; the highest response sensitivity of the OMCI salinity sensor reached 303.7 pm/‰ for a range of 16.6–23.8‰, and the resolution was less than 0.03‰. This study provides a new technical solution for the development of practical optical fiber seawater salinity sensors.https://www.mdpi.com/2304-6732/7/3/77optical microfiber couplerinterferometersalinity sensingoptic fiber sensor |
| spellingShingle | Lingjun Zhou Yang Yu Huimin Huang Yuyu Tao Kui Wen Guofeng Li Junbo Yang Zhenrong Zhang Salinity Sensing Characteristics Based on Optical Microfiber Coupler Interferometer Photonics optical microfiber coupler interferometer salinity sensing optic fiber sensor |
| title | Salinity Sensing Characteristics Based on Optical Microfiber Coupler Interferometer |
| title_full | Salinity Sensing Characteristics Based on Optical Microfiber Coupler Interferometer |
| title_fullStr | Salinity Sensing Characteristics Based on Optical Microfiber Coupler Interferometer |
| title_full_unstemmed | Salinity Sensing Characteristics Based on Optical Microfiber Coupler Interferometer |
| title_short | Salinity Sensing Characteristics Based on Optical Microfiber Coupler Interferometer |
| title_sort | salinity sensing characteristics based on optical microfiber coupler interferometer |
| topic | optical microfiber coupler interferometer salinity sensing optic fiber sensor |
| url | https://www.mdpi.com/2304-6732/7/3/77 |
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