Refractive index and temperature sensor based on no-core fiber and few-mode fiber coupling

Yeming Zhao,Zhengrong Tong,Weihua Zhang,Jietong Zhang

2021 19th International Conference on Optical Communications and Networks (ICOCN)（2021）

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摘要

An interferometric fiber optic sensor based on no-core fiber (NCF) is proposed, and small sections of few-mode fiber (FMF) are fused to each end of the NCF to enhance the sensitivities of the sensor. The refractive index sensitivities of this structure are 171.29 nm/RIU from 1.35 to 1.41 and 892.56 nm/RIU from 1.41 to 1.43, respectively. The temperature sensitivity is 0.06684 nm/°C from 30°C to 90...

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关键词

Optical fibers,Temperature measurement,Temperature sensors,Couplings,Optical fiber sensors,Sensitivity,Refractive index

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