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Kilometers Long Graphene-Coated Optical Fibers for Fast Thermal Sensing 被引量:3
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作者 Yiyong Guo Bing Han +10 位作者 Junting Du Shanshan Cao Hua Gao Ning An Yiwei Li Shujie An Zengling Ran Yue Lin Wencai Ren Yunjiang Rao Baicheng Yao 《Research》 SCIE EI CAS CSCD 2021年第1期286-294,共9页
The combination of optical fiber with graphene has greatly expanded the application regimes of fiber optics,from dynamic optical control and ultrafast pulse generation to high precision sensing.However,limited by fabr... The combination of optical fiber with graphene has greatly expanded the application regimes of fiber optics,from dynamic optical control and ultrafast pulse generation to high precision sensing.However,limited by fabrication,previous graphene-fiber samples are typically limited in the micrometer to centimeter scale,which cannot take the inherent advantage of optical fibers—longdistance optical transmission.Here,we demonstrate kilometers long graphene-coated optical fiber(GCF)based on industrial graphene nanosheets and coating technique.The GCF shows unusually high thermal diffusivity of 24.99 mm^(2) s^(-1) in the axial direction,measured by a thermal imager directly.This enables rapid thermooptical response both in optical fiber Bragg grating sensors at one point(18-fold faster than conventional fiber)and in long-distance distributed fiber sensing systems based on backward Rayleigh scattering in optical fiber(15-fold faster than conventional fiber).This work realizes the industrial-level graphene-fiber production and provides a novel platform for two-dimensional material-based optical fiber sensing applications. 展开更多
关键词 fiber SCATTERING FASTER
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