Liu, H. and Yang, H.Z. and Qiao, X.G. and Wang, Y. and Liu, X.C. and Lee, Y.S. and Lim, Kok Sing and Ahmad, Harith (2017) Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG. Sensors, 17 (8). p. 1725. ISSN 1424-8220, DOI https://doi.org/10.3390/s17081725.
Full text not available from this repository.Abstract
We have experimentally demonstrated an optical fiber Mach-Zehnder interferometer (MZI) structure formed by a few-mode photonic crystal fiber (PCF) for curvature measurement and inscribed a fiber Bragg grating (FBG) in the PCF for the purpose of simultaneously measuring temperature. The structure consists of a PCF sandwiched between two multi-mode fibers (MMFs). Bending experimental results show that the proposed sensor has a sensitivity of −1.03 nm/m−1 at a curvature range from 10 m−1 to 22.4 m−1, and the curvature sensitivity of the embedded FBG was −0.003 nm/m−1 . Temperature response experimental results showed that the MZI’s wavelength, λa, has a sensitivity of 60.3 pm/° C, and the FBG’s Bragg wavelength, λb, has sensitivity of 9.2 pm/° C in the temperature range of 8 to 100° C. As such, it can be used for simultaneous measurement of curvature and temperature over ranges of 10 m−1 to 22.4 m−1 and 8° C to 100° C, respectively. The results show that the embedded FBG can be a good indicator to compensate the varying ambient temperature during a curvature measurement.
| Item Type: | Article |
|---|---|
| Funders: | National Natural Science Foundation of China (Nos. 61327012 and 61405160), ShaanXi Young scientist star program 2016KJXX-04, Projects of scientific research plan of the ShaanXi Education Department, No. 15JK1751, Northwest University Young Scientist Support Program NJ00089, PRGS (PR001-2015A) and UMRG (RG326-15AFR) |
| Uncontrolled Keywords: | Mach-Zehnder interferometers (MZI); Few-mode photonic crystal fiber FBG |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 05 Sep 2018 03:35 |
| Last Modified: | 11 Oct 2018 03:31 |
| URI: | http://eprints.um.edu.my/id/eprint/19111 |
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