Investigation of temperature sensor composed of a DM-FBG inscribed in the MC-DMF for Internet of Things

Zhaogang Han; Peng Wu; Xiao Liang; Xuran Zhang

doi:10.1117/12.2628587

7 March 2022 Investigation of temperature sensor composed of a DM-FBG inscribed in the MC-DMF for Internet of Things

Zhaogang Han, Peng Wu, Xiao Liang, Xuran Zhang

Proceedings Volume 12167, Third International Conference on Electronics and Communication; Network and Computer Technology (ECNCT 2021); 1216705 (2022) https://doi.org/10.1117/12.2628587
Event: 2021 Third International Conference on Electronics and Communication, Network and Computer Technology, 2021, Harbin, China

Abstract

An all-fiber temperature sensor is proposed for operational characterization, which is based on a Dual-Mode Fiber Bragg Grating (DM-FBG). This DM-FBG embedded in a Multilayer-Core Dual-Mode Fiber (MC-DMF) could sense the surrounding temperature depending on the transmission dips. The MC-DMF, with only two modes available for propagation, would make it easier to fabricate an FBG with two transmission dips. These two transmission dips have varying sensing precision. The propagation features and the working principle are described at length. With the temperature range of 30–70°C, the sensitivity of the DM-FBG, ~9.32 pm/°C and ~9.41 pm/°C are experimentally achieved, respectively. DM-FBGs could be scattered along a single fiber easily, and then a quasi-distributed sensing network would be built by these multi-node ones. Thus, this sensor has great potential for the internet of things.

Citation Download Citation

Zhaogang Han, Peng Wu, Xiao Liang, and Xuran Zhang "Investigation of temperature sensor composed of a DM-FBG inscribed in the MC-DMF for Internet of Things", Proc. SPIE 12167, Third International Conference on Electronics and Communication; Network and Computer Technology (ECNCT 2021), 1216705 (7 March 2022); https://doi.org/10.1117/12.2628587

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KEYWORDS

Temperature metrology

Fiber Bragg gratings

Temperature sensors

Internet

Sensors

Wave propagation

Finite element methods

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