A PDMS-coated optical fiber Bragg grating sensor for enhancing temperature sensitivity

Chang sub Park; Kyung Il Joo; Shin Won Kang; Hak Rin Kim

doi:10.3807/JOSK.2011.15.4.329

A PDMS-coated optical fiber Bragg grating sensor for enhancing temperature sensitivity

Chang sub Park, Kyung Il Joo, Shin Won Kang, Hak Rin Kim

School of Electronics Engineering

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

110 Scopus citations

Abstract

We proposed a poly-dimethylsiloxane (PDMS)-coated fiber Bragg grating (FBG) temperature sensor for enhancing temperature sensitivity. By embedding the bare FBG in a temperature-sensitive elastomeric polymer, the temperature sensitivity of the proposed structure could be effectively improved by 4.2 times higher than those of the conventional bare-type FBG sensors due to the high thermal expansion coefficient of the PDMS. We analyzed the temperature-sensitivity enhancement effect with the increased Bragg wavelength shift in our structure and dependence on the temperature sensitivity with respect to the cross-section area of the PDMS.

Original language	English
Pages (from-to)	329-334
Number of pages	6
Journal	Journal of the Optical Society of Korea
Volume	15
Issue number	4
DOIs	https://doi.org/10.3807/JOSK.2011.15.4.329
State	Published - Dec 2011

Keywords

Elastomeric polymer
Fiber Bragg grating
Optical fiber sensor
Temperature sensor
Thermal expansion

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10.3807/JOSK.2011.15.4.329

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title = "A PDMS-coated optical fiber Bragg grating sensor for enhancing temperature sensitivity",

abstract = "We proposed a poly-dimethylsiloxane (PDMS)-coated fiber Bragg grating (FBG) temperature sensor for enhancing temperature sensitivity. By embedding the bare FBG in a temperature-sensitive elastomeric polymer, the temperature sensitivity of the proposed structure could be effectively improved by 4.2 times higher than those of the conventional bare-type FBG sensors due to the high thermal expansion coefficient of the PDMS. We analyzed the temperature-sensitivity enhancement effect with the increased Bragg wavelength shift in our structure and dependence on the temperature sensitivity with respect to the cross-section area of the PDMS.",

keywords = "Elastomeric polymer, Fiber Bragg grating, Optical fiber sensor, Temperature sensor, Thermal expansion",

author = "Park, {Chang sub} and Joo, {Kyung Il} and Kang, {Shin Won} and Kim, {Hak Rin}",

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AU - Park, Chang sub

AU - Joo, Kyung Il

AU - Kang, Shin Won

AU - Kim, Hak Rin

PY - 2011/12

Y1 - 2011/12

N2 - We proposed a poly-dimethylsiloxane (PDMS)-coated fiber Bragg grating (FBG) temperature sensor for enhancing temperature sensitivity. By embedding the bare FBG in a temperature-sensitive elastomeric polymer, the temperature sensitivity of the proposed structure could be effectively improved by 4.2 times higher than those of the conventional bare-type FBG sensors due to the high thermal expansion coefficient of the PDMS. We analyzed the temperature-sensitivity enhancement effect with the increased Bragg wavelength shift in our structure and dependence on the temperature sensitivity with respect to the cross-section area of the PDMS.

AB - We proposed a poly-dimethylsiloxane (PDMS)-coated fiber Bragg grating (FBG) temperature sensor for enhancing temperature sensitivity. By embedding the bare FBG in a temperature-sensitive elastomeric polymer, the temperature sensitivity of the proposed structure could be effectively improved by 4.2 times higher than those of the conventional bare-type FBG sensors due to the high thermal expansion coefficient of the PDMS. We analyzed the temperature-sensitivity enhancement effect with the increased Bragg wavelength shift in our structure and dependence on the temperature sensitivity with respect to the cross-section area of the PDMS.

KW - Elastomeric polymer

KW - Fiber Bragg grating

KW - Optical fiber sensor

KW - Temperature sensor

KW - Thermal expansion

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VL - 15

SP - 329

EP - 334

JO - Journal of the Optical Society of Korea

JF - Journal of the Optical Society of Korea

IS - 4

ER -

A PDMS-coated optical fiber Bragg grating sensor for enhancing temperature sensitivity

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Keywords

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