Microfluidic Flowmeter Based on Long-period Fiber Grating Coated with Few-layer Graphene

Shao-cheng Yan; Zeng-yong Liu; Yun-qi Liu; Fei Xu

2017 Conference on Lasers and Electro-Optics Pacific Rim
(Optica Publishing Group, 2017),
paper s1511

Microfluidic Flowmeter Based on Long-period Fiber Grating Coated with Few-layer Graphene

Shao-cheng Yan, Zeng-yong Liu, Yun-qi Liu, and Fei Xu

Conference on Lasers and Electro-Optics/Pacific Rim 2017

Singapore Singapore
31 July–4 August 2017
ISBN: 978-1-5090-6290-4

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Poster Session IV (PSIV)

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S. Yan, Z. Liu, Y. Liu, and F. Xu, "Microfluidic Flowmeter Based on Long-period Fiber Grating Coated with Few-layer Graphene," in 2017 Conference on Lasers and Electro-Optics Pacific Rim, (Optica Publishing Group, 2017), paper s1511.

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Abstract

A microfluidic flowmeter is proposed based on graphene integrated “hot-wire” structure. A long-period fiber grating (LPFG) is written in a single mode fiber by CO₂ laser to excite the higher-order mode. Graphene is coated around the grating to absorb the higher-order mode and generate the heat. The fiber is sealed into a home-made tube. When the microfluid flows through the graphene, the heat is taken away and the output spectrum of the fiber grating would shift. The flowmeter is promising for the future microfluidic detection.

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