Simultaneous measurement of refractive index and temperature based on tapered no-core fiber cascaded with a fiber Bragg grating
A Mach-Zehnder interference fiber-optic sensor for simultaneous measurement of temperature and refractive index (RI) is proposed and fabricated. In the sensing structure, no-core fiber (NCF) is cascaded with fiber Bragg grating (FBG), two enlarged tapers between NCF and the single-mode fiber serve a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Results in Optics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S266695012200089X |
| _version_ | 1828095778823864320 |
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| author | Yushan Liu Song Xie Yuanyuan Zheng Xiaozhan Yang |
| author_facet | Yushan Liu Song Xie Yuanyuan Zheng Xiaozhan Yang |
| author_sort | Yushan Liu |
| collection | DOAJ |
| description | A Mach-Zehnder interference fiber-optic sensor for simultaneous measurement of temperature and refractive index (RI) is proposed and fabricated. In the sensing structure, no-core fiber (NCF) is cascaded with fiber Bragg grating (FBG), two enlarged tapers between NCF and the single-mode fiber serve as the light coupler, and the shrinked taper between two NCFs is used to enhance the interference effect. The different diameter influence of the shrinked taper on the sensing performance of RI and temperature has been evaluated, and the optimum diameter has been obtained. By monitoring the wavelength shift of FBG and the interference dip in the transmission spectra, the simultaneous measurement of temperature and RI is achieved. The maximum sensitivities of the attenuation peak to RI and temperature are 201.7157 nm/RIU and 87.4 pm/°C, respectively. The sensitivities of FBG to RI and temperature are 80.6 pm/RIU and 13.5 pm/°C, respectively. The transformation matrix has also been given. Own to the simple fabrication and high sensitivity, the sensor has the potential application in simultaneous measurement of multiple parameters. |
| first_indexed | 2024-04-11T07:18:58Z |
| format | Article |
| id | doaj.art-9c4a768cf55c42f1b811d36ed91ef3d0 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-04-11T07:18:58Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-9c4a768cf55c42f1b811d36ed91ef3d02022-12-22T04:37:49ZengElsevierResults in Optics2666-95012022-12-019100300Simultaneous measurement of refractive index and temperature based on tapered no-core fiber cascaded with a fiber Bragg gratingYushan Liu0Song Xie1Yuanyuan Zheng2Xiaozhan Yang3School of Science, Chongqing University of Technology, Chongqing 400054, ChinaSchool of Science, Chongqing University of Technology, Chongqing 400054, ChinaSchool of Science, Chongqing University of Technology, Chongqing 400054, ChinaSchool of Science, Chongqing University of Technology, Chongqing 400054, China; Chongqing Key Laboratory of Green Energy Materials Technology and Systems, Chongqing 400054, China; Corresponding author at: School of Science, Chongqing University of Technology, Chongqing 400054, China.A Mach-Zehnder interference fiber-optic sensor for simultaneous measurement of temperature and refractive index (RI) is proposed and fabricated. In the sensing structure, no-core fiber (NCF) is cascaded with fiber Bragg grating (FBG), two enlarged tapers between NCF and the single-mode fiber serve as the light coupler, and the shrinked taper between two NCFs is used to enhance the interference effect. The different diameter influence of the shrinked taper on the sensing performance of RI and temperature has been evaluated, and the optimum diameter has been obtained. By monitoring the wavelength shift of FBG and the interference dip in the transmission spectra, the simultaneous measurement of temperature and RI is achieved. The maximum sensitivities of the attenuation peak to RI and temperature are 201.7157 nm/RIU and 87.4 pm/°C, respectively. The sensitivities of FBG to RI and temperature are 80.6 pm/RIU and 13.5 pm/°C, respectively. The transformation matrix has also been given. Own to the simple fabrication and high sensitivity, the sensor has the potential application in simultaneous measurement of multiple parameters.http://www.sciencedirect.com/science/article/pii/S266695012200089XMach-Zehnder interferenceNo-core fiberFiber Bragg gratingRefractive indexTemperature |
| spellingShingle | Yushan Liu Song Xie Yuanyuan Zheng Xiaozhan Yang Simultaneous measurement of refractive index and temperature based on tapered no-core fiber cascaded with a fiber Bragg grating Results in Optics Mach-Zehnder interference No-core fiber Fiber Bragg grating Refractive index Temperature |
| title | Simultaneous measurement of refractive index and temperature based on tapered no-core fiber cascaded with a fiber Bragg grating |
| title_full | Simultaneous measurement of refractive index and temperature based on tapered no-core fiber cascaded with a fiber Bragg grating |
| title_fullStr | Simultaneous measurement of refractive index and temperature based on tapered no-core fiber cascaded with a fiber Bragg grating |
| title_full_unstemmed | Simultaneous measurement of refractive index and temperature based on tapered no-core fiber cascaded with a fiber Bragg grating |
| title_short | Simultaneous measurement of refractive index and temperature based on tapered no-core fiber cascaded with a fiber Bragg grating |
| title_sort | simultaneous measurement of refractive index and temperature based on tapered no core fiber cascaded with a fiber bragg grating |
| topic | Mach-Zehnder interference No-core fiber Fiber Bragg grating Refractive index Temperature |
| url | http://www.sciencedirect.com/science/article/pii/S266695012200089X |
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