期刊
OPTICS EXPRESS
卷 26, 期 2, 页码 1910-1917出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.26.001910
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资金
- National Natural Science Foundation of China [61575151]
In this paper, a novel optical fiber temperature sensor based on surface plasmon resonance (SPR) is presented. The sensor consists of multimode fiber-photonic crystal fiber-multimode fiber (MMF-PCF-MMF) structure coated with gold film, whose refractive index (RI) sensitivity was found to range from 1060.78 nm/RIU to 4613.73 nm/RIU in the RI range of 1.3330-1.3904. Through simulation and experimental results, the RI sensitivity of the MMF-PCF-MMF structure is found to be higher than that of multimode fiber-single mode fiber-multimode fiber (MMF-SMF-MMF) structure. The sensing area was coated with polydimethylsiloxane (PDMS) that has a high thermal coefficient, obtaining a high temperature sensitivity of -1.551 nm/degrees C in the temperature range of 35-100 degrees C, which means it has a broad application prospect in medical, environmental monitoring and manufacturing industry. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
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