摘要
A compact optical fiber sensor based on a Fabry-Perot interferometer (FPI) with an integrated fiber Bragg grating is proposed to measure pressure and temperature simultaneously. The light reflectors of the proposed FPI comprise a graphene film and a fiber end face. The sensitivities of the FPI sensor for measuring pressure and temperature are 501.4 nm/kPa and 306.2 nm/°C, respectively. Conflicting signals of pressure and temperature can cause cross-impact errors at 610 Pa/°C. The introduction of a fiber Bragg grating can effectively prevent the cross-impact of the FPI sensor. The pressure sensitivity obtained is 7.96 to 12 times higher than the previous study. The proposed fiber sensor can simultaneously measure pressure and temperature using a sensitivity matrix.
源语言 | 英语 |
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页(从-至) | 431-434 |
页数 | 4 |
期刊 | IEEE Photonics Technology Letters |
卷 | 30 |
期 | 5 |
DOI | |
出版状态 | 已出版 - 1 3月 2018 |