Microfluidic refractive-index sensors based on small-hole microstructured optical fiber Bragg gratings

Aping Zhang; Guofeng Yan; Shaorui Gao; Sailing He; Bongkyun Kim; Jooeun Im; Youngjoo Chung

doi:10.1063/1.3597623

Microfluidic refractive-index sensors based on small-hole microstructured optical fiber Bragg gratings

Aping Zhang, Guofeng Yan, Shaorui Gao, Sailing He, Bongkyun Kim, Jooeun Im, Youngjoo Chung

Research output: Journal article publication › Journal article › Academic research › peer-review

35 Citations (Scopus)

Abstract

A microstructured optical fiber (MOF) Bragg grating is presented for microfluidic sensing applications. The MOF is specially designed to be with a large amount of microholes for developing ultrasensitive sensors based on inner coating and surface effects. With the fabrication of fiber Bragg grating (FBG), such an MOF sensor has been demonstrated for monitoring the fluid flowing through microholes. Experimental results reveal that the sensitivity of the sensor depends on both the refractive-index range of measurement and the order of fiber modes. The temperature dependency of the sensor has also been measured and compared with that of conventional FBGs.

Original language	English
Article number	221109
Journal	Applied Physics Letters
Volume	98
Issue number	22
DOIs	https://doi.org/10.1063/1.3597623
Publication status	Published - 30 May 2011
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3597623

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abstract = "A microstructured optical fiber (MOF) Bragg grating is presented for microfluidic sensing applications. The MOF is specially designed to be with a large amount of microholes for developing ultrasensitive sensors based on inner coating and surface effects. With the fabrication of fiber Bragg grating (FBG), such an MOF sensor has been demonstrated for monitoring the fluid flowing through microholes. Experimental results reveal that the sensitivity of the sensor depends on both the refractive-index range of measurement and the order of fiber modes. The temperature dependency of the sensor has also been measured and compared with that of conventional FBGs.",

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AU - Kim, Bongkyun

AU - Im, Jooeun

AU - Chung, Youngjoo

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AB - A microstructured optical fiber (MOF) Bragg grating is presented for microfluidic sensing applications. The MOF is specially designed to be with a large amount of microholes for developing ultrasensitive sensors based on inner coating and surface effects. With the fabrication of fiber Bragg grating (FBG), such an MOF sensor has been demonstrated for monitoring the fluid flowing through microholes. Experimental results reveal that the sensitivity of the sensor depends on both the refractive-index range of measurement and the order of fiber modes. The temperature dependency of the sensor has also been measured and compared with that of conventional FBGs.

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Microfluidic refractive-index sensors based on small-hole microstructured optical fiber Bragg gratings

Abstract

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