Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer
We report the ring core fiber spliced with single mode fiber and no core fiber which is used for temperature and refractive index (RI) sensing. The Mach-Zehnder interferometer (MZI) is formed with this kind of sandwich fiber structure and the maximum extinction ratio of the interference spectra reac...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/12/3/258 |
| _version_ | 1797415311752822784 |
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| author | Weihao Yuan Changyuan Yu |
| author_facet | Weihao Yuan Changyuan Yu |
| author_sort | Weihao Yuan |
| collection | DOAJ |
| description | We report the ring core fiber spliced with single mode fiber and no core fiber which is used for temperature and refractive index (RI) sensing. The Mach-Zehnder interferometer (MZI) is formed with this kind of sandwich fiber structure and the maximum extinction ratio of the interference spectra reaches 27 dB with the free spectra range of 12 nm. The MZI fiber sensor is applied for temperature sensing with the sensitivity of 69 pm/°C and 0.051 dB/°C. The RI sensitivity reaches 182.07 dB/RIU and −31.44 nm/RIU with the RI ranging from 1.33 to 1.38. The RI value can be directly demodulated with the interference dip intensity which shows insensitivity to temperature. The demodulation of temperature can be achieved by using the linear equations between dip wavelength shift with the variation of temperature and RI. |
| first_indexed | 2024-03-09T05:46:54Z |
| format | Article |
| id | doaj.art-3109769b304b4e38a6cc9ff4ed10148e |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T05:46:54Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-3109769b304b4e38a6cc9ff4ed10148e2023-12-03T12:20:34ZengMDPI AGMicromachines2072-666X2021-03-0112325810.3390/mi12030258Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder InterferometerWeihao Yuan0Changyuan Yu1Photonic Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, ChinaPhotonic Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, ChinaWe report the ring core fiber spliced with single mode fiber and no core fiber which is used for temperature and refractive index (RI) sensing. The Mach-Zehnder interferometer (MZI) is formed with this kind of sandwich fiber structure and the maximum extinction ratio of the interference spectra reaches 27 dB with the free spectra range of 12 nm. The MZI fiber sensor is applied for temperature sensing with the sensitivity of 69 pm/°C and 0.051 dB/°C. The RI sensitivity reaches 182.07 dB/RIU and −31.44 nm/RIU with the RI ranging from 1.33 to 1.38. The RI value can be directly demodulated with the interference dip intensity which shows insensitivity to temperature. The demodulation of temperature can be achieved by using the linear equations between dip wavelength shift with the variation of temperature and RI.https://www.mdpi.com/2072-666X/12/3/258ring core fiberMach-Zehnder interferometertemperaturerefractive index |
| spellingShingle | Weihao Yuan Changyuan Yu Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer Micromachines ring core fiber Mach-Zehnder interferometer temperature refractive index |
| title | Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer |
| title_full | Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer |
| title_fullStr | Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer |
| title_full_unstemmed | Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer |
| title_short | Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer |
| title_sort | dual demodulation of temperature and refractive index using ring core fiber based mach zehnder interferometer |
| topic | ring core fiber Mach-Zehnder interferometer temperature refractive index |
| url | https://www.mdpi.com/2072-666X/12/3/258 |
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