Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/90830
Title: | Dual demodulation of temperature and refractive index using ring core fiber based mach-zehnder interferometer | Authors: | Yuan, W Yu, C |
Issue Date: | 2021 | Source: | Micromachines, 2021, v. 12, no. 3, 258, p. 1-8 | Abstract: | 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. | Keywords: | Mach-Zehnder interferometer Refractive index Ring core fiber Temperature |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Micromachines | EISSN: | 2072-666X | DOI: | 10.3390/mi12030258 | Rights: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). The following publication Yuan, W.; Yu, C. Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer. Micromachines 2021, 12, 258 is available at https://doi.org/10.3390/mi12030258 |
Appears in Collections: | Journal/Magazine Article |
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