Dual-Parameter Fiber Sensors for Salinity and Temperature Measurement Based on a Tapered PMF Incorporated With an FBG in Sagnac Loop
A flexible and stable optical fiber sensor based on the Sagnac loop is proposed and experimentally demonstrated for the measurement of salinity and temperature, simultaneously. The sensing unit consists of a tapered polarization maintaining fiber (tPMF) and a fiber Bragg grating (FBG) connected in s...
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| Format: | Article |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10384688/ |
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| author | Yuhui Liu Weihao Lin Fang Zhao Xuming Zhang Li-Yang Shao |
| author_facet | Yuhui Liu Weihao Lin Fang Zhao Xuming Zhang Li-Yang Shao |
| author_sort | Yuhui Liu |
| collection | DOAJ |
| description | A flexible and stable optical fiber sensor based on the Sagnac loop is proposed and experimentally demonstrated for the measurement of salinity and temperature, simultaneously. The sensing unit consists of a tapered polarization maintaining fiber (tPMF) and a fiber Bragg grating (FBG) connected in series in the Sagnac loop. The temperature response comes from the high birefringence of PMF inside Sagnac loop, and the salinity response is enabled by the high-order modes excited in the tapered area of PMF. Besides, the FBG is for temperature compensation. We have succeeded in implementing dual-parameter measurements with the sensitivities of 0.356 nm/‰ for salinity and 0.616 nm/°C for temperature, respectively. The designed sensor has the potential for long-term monitoring of real ocean states. |
| format | Article |
| id | doaj-art-07b5f96f60ad4e31a30b0bfc378dfd45 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-07b5f96f60ad4e31a30b0bfc378dfd452025-08-20T03:33:21ZengIEEEIEEE Photonics Journal1943-06552024-01-011611710.1109/JPHOT.2024.335109210384688Dual-Parameter Fiber Sensors for Salinity and Temperature Measurement Based on a Tapered PMF Incorporated With an FBG in Sagnac LoopYuhui Liu0https://orcid.org/0000-0002-0605-3248Weihao Lin1https://orcid.org/0000-0002-1499-2608Fang Zhao2https://orcid.org/0000-0002-8616-0659Xuming Zhang3https://orcid.org/0000-0002-9326-5547Li-Yang Shao4https://orcid.org/0000-0003-1272-1959Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Applied Physics, Hong Kong Polytechnic University, Hong Kong SAR, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaA flexible and stable optical fiber sensor based on the Sagnac loop is proposed and experimentally demonstrated for the measurement of salinity and temperature, simultaneously. The sensing unit consists of a tapered polarization maintaining fiber (tPMF) and a fiber Bragg grating (FBG) connected in series in the Sagnac loop. The temperature response comes from the high birefringence of PMF inside Sagnac loop, and the salinity response is enabled by the high-order modes excited in the tapered area of PMF. Besides, the FBG is for temperature compensation. We have succeeded in implementing dual-parameter measurements with the sensitivities of 0.356 nm/‰ for salinity and 0.616 nm/°C for temperature, respectively. The designed sensor has the potential for long-term monitoring of real ocean states.https://ieeexplore.ieee.org/document/10384688/Dual-parameter sensorsSagnac loopsalinity sensorstemperature sensorstPMF |
| spellingShingle | Yuhui Liu Weihao Lin Fang Zhao Xuming Zhang Li-Yang Shao Dual-Parameter Fiber Sensors for Salinity and Temperature Measurement Based on a Tapered PMF Incorporated With an FBG in Sagnac Loop IEEE Photonics Journal Dual-parameter sensors Sagnac loop salinity sensors temperature sensors tPMF |
| title | Dual-Parameter Fiber Sensors for Salinity and Temperature Measurement Based on a Tapered PMF Incorporated With an FBG in Sagnac Loop |
| title_full | Dual-Parameter Fiber Sensors for Salinity and Temperature Measurement Based on a Tapered PMF Incorporated With an FBG in Sagnac Loop |
| title_fullStr | Dual-Parameter Fiber Sensors for Salinity and Temperature Measurement Based on a Tapered PMF Incorporated With an FBG in Sagnac Loop |
| title_full_unstemmed | Dual-Parameter Fiber Sensors for Salinity and Temperature Measurement Based on a Tapered PMF Incorporated With an FBG in Sagnac Loop |
| title_short | Dual-Parameter Fiber Sensors for Salinity and Temperature Measurement Based on a Tapered PMF Incorporated With an FBG in Sagnac Loop |
| title_sort | dual parameter fiber sensors for salinity and temperature measurement based on a tapered pmf incorporated with an fbg in sagnac loop |
| topic | Dual-parameter sensors Sagnac loop salinity sensors temperature sensors tPMF |
| url | https://ieeexplore.ieee.org/document/10384688/ |
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