Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG
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 con...
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2017
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| Online Access: | http://eprints.um.edu.my/19111/ http://dx.doi.org/10.3390/s17081725 |
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| author | Liu, H. Yang, H.Z. Qiao, X.G. Wang, Y. Liu, X.C. Lee, Y.S. Lim, Kok Sing Ahmad, Harith |
| author_facet | Liu, H. Yang, H.Z. Qiao, X.G. Wang, Y. Liu, X.C. Lee, Y.S. Lim, Kok Sing Ahmad, Harith |
| author_sort | Liu, H. |
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| collection | Institutional Repository |
| content_provider | Universiti Malaya |
| content_source | UM Research Repository |
| continent | Asia |
| country | Malaysia |
| description | 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. |
| format | Article |
| id | my.um.eprints-19111 |
| institution | Universiti Malaya |
| publishDate | 2017 |
| publisher | MDPI |
| record_format | eprints |
| spelling | my.um.eprints-191112018-10-11T03:31:19Z http://eprints.um.edu.my/19111/ Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG Liu, H. Yang, H.Z. Qiao, X.G. Wang, Y. Liu, X.C. Lee, Y.S. Lim, Kok Sing Ahmad, Harith Q Science (General) QC Physics 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. MDPI 2017 Article PeerReviewed 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 <https://doi.org/10.3390/s17081725>. http://dx.doi.org/10.3390/s17081725 doi:10.3390/s17081725 |
| spellingShingle | Q Science (General) QC Physics Liu, H. Yang, H.Z. Qiao, X.G. Wang, Y. Liu, X.C. Lee, Y.S. Lim, Kok Sing Ahmad, Harith Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG |
| title | Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG |
| title_full | Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG |
| title_fullStr | Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG |
| title_full_unstemmed | Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG |
| title_short | Curvature and Temperature Measurement Based on a Few-Mode PCF Formed M-Z-I and an Embedded FBG |
| title_sort | curvature and temperature measurement based on a few-mode pcf formed m-z-i and an embedded fbg |
| topic | Q Science (General) QC Physics |
| url | http://eprints.um.edu.my/19111/ http://dx.doi.org/10.3390/s17081725 |
| url_provider | http://eprints.um.edu.my/ |