Kilometers Long Graphene-Coated Optical Fibers for Fast Thermal Sensing.

ABSTRACT: 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-long-distance 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 mm² 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 poi

SUBMITTER: Guo Y 

PROVIDER: S-EPMC8000361 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature