Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature
A simple fiber sensor for simultaneous measurement of refractive index (RI) and temperature is proposed and experimentally demonstrated. The sensor head consists of a section of liquid-filled hollow core fiber spliced between single mode fibers. An interference fringe is observed from the transmissi...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/150006 |
| _version_ | 1826110697506865152 |
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| author | Liu, Shuhui Zhang, Hailiang Li, Litong Xiong, Liangming Shum, Ping |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Liu, Shuhui Zhang, Hailiang Li, Litong Xiong, Liangming Shum, Ping |
| author_sort | Liu, Shuhui |
| collection | NTU |
| description | A simple fiber sensor for simultaneous measurement of refractive index (RI) and temperature is proposed and experimentally demonstrated. The sensor head consists of a section of liquid-filled hollow core fiber spliced between single mode fibers. An interference fringe is observed from the transmission spectrum of the sensor, which is originated from the modal interference within the liquid core fiber. A temperature sensitivity of -42.7 pm/°C is experimentally obtained between room temperature and 80 °C. The sensor also exhibits a wavelength shift response to the ambient liquid RI with a sensitivity of 141 nm/RIU. Due to different sensitivities of the dips at separate wavelengths, it is possible to monitoring environment temperature and RI variation simultaneously by tracing two transmission dips. The sensor structure is simple, easy to fabricate, and cost-effective, which has potential applications in biological and chemical sensing. |
| first_indexed | 2024-10-01T02:38:44Z |
| format | Journal Article |
| id | ntu-10356/150006 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:38:44Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1500062021-05-31T02:35:47Z Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature Liu, Shuhui Zhang, Hailiang Li, Litong Xiong, Liangming Shum, Ping School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Modal Interferometer Optical Fiber Sensor A simple fiber sensor for simultaneous measurement of refractive index (RI) and temperature is proposed and experimentally demonstrated. The sensor head consists of a section of liquid-filled hollow core fiber spliced between single mode fibers. An interference fringe is observed from the transmission spectrum of the sensor, which is originated from the modal interference within the liquid core fiber. A temperature sensitivity of -42.7 pm/°C is experimentally obtained between room temperature and 80 °C. The sensor also exhibits a wavelength shift response to the ambient liquid RI with a sensitivity of 141 nm/RIU. Due to different sensitivities of the dips at separate wavelengths, it is possible to monitoring environment temperature and RI variation simultaneously by tracing two transmission dips. The sensor structure is simple, easy to fabricate, and cost-effective, which has potential applications in biological and chemical sensing. 2021-05-31T02:35:47Z 2021-05-31T02:35:47Z 2019 Journal Article Liu, S., Zhang, H., Li, L., Xiong, L. & Shum, P. (2019). Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature. IEEE Photonics Technology Letters, 31(2), 189-192. https://dx.doi.org/10.1109/LPT.2018.2889753 1041-1135 0000-0002-6149-1873 https://hdl.handle.net/10356/150006 10.1109/LPT.2018.2889753 2-s2.0-85059261563 2 31 189 192 en IEEE Photonics Technology Letters © 2019 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Modal Interferometer Optical Fiber Sensor Liu, Shuhui Zhang, Hailiang Li, Litong Xiong, Liangming Shum, Ping Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature |
| title | Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature |
| title_full | Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature |
| title_fullStr | Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature |
| title_full_unstemmed | Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature |
| title_short | Liquid core fiber interferometer for simultaneous measurement of refractive index and temperature |
| title_sort | liquid core fiber interferometer for simultaneous measurement of refractive index and temperature |
| topic | Engineering::Electrical and electronic engineering Modal Interferometer Optical Fiber Sensor |
| url | https://hdl.handle.net/10356/150006 |
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