Brillouin frequency shift dependence on water absorption in plastic optical fibers

K. Minakawa; K. Koike; N. Hayashi; Y. Koike; Y. Mizuno; K. Nakamura

Brillouin frequency shift dependence on water absorption in plastic optical fibers

K. Minakawa, K. Koike, N. Hayashi, Y. Koike, Y. Mizuno, K. Nakamura

University

Research output: Contribution to conference › Paper › peer-review

Abstract

We study the dependence of Brillouin frequency shift (BFS) on water-absorption ratio in poly(methyl methacrylate)-based plastic optical fibers (POFs) to clarify the effect of the humidity on the POF-based Brillouin sensors. The BFS decreases monotonically as the water-absorption ratio increases, probably because of the decrease in the Young's modulus. At the same water-absorption ratio, the BFS change basically becomes larger with increasing temperature. The maximal BFS changes (absolute values) at 40, 60, and 80 °C are 158, 285, and 510 MHz (corresponding to the temperature changes of approximately 9, 16, and 30 °C), respectively. Therefore, some countermeasure against humidity is indispensable in implementing strain/temperature sensors based on Brillouin scattering in POFs especially at higher temperature. On the other hand, Brillouin-based distributed humidity sensors can be developed by exploiting the BFS dependence on water absorption in POFs.

Original language	English
Pages	244-247
Number of pages	4
Publication status	Published - 2015
Event	24th International Conference on Plastic Optical Fibers, POF 2015 - Nuremberg, Germany Duration: 2015 Sept 22 → 2015 Sept 24

Other

Other	24th International Conference on Plastic Optical Fibers, POF 2015
Country/Territory	Germany
City	Nuremberg
Period	15/9/22 → 15/9/24

Keywords

Brillouin frequency shift
Brillouin scattering
Plastic optical fiber sensors
Strain/temperature sensing
Water absorption

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Materials Chemistry
Polymers and Plastics

Cite this

@conference{177f2c38c3244a7fa7499145695c9542,

title = "Brillouin frequency shift dependence on water absorption in plastic optical fibers",

abstract = "We study the dependence of Brillouin frequency shift (BFS) on water-absorption ratio in poly(methyl methacrylate)-based plastic optical fibers (POFs) to clarify the effect of the humidity on the POF-based Brillouin sensors. The BFS decreases monotonically as the water-absorption ratio increases, probably because of the decrease in the Young's modulus. At the same water-absorption ratio, the BFS change basically becomes larger with increasing temperature. The maximal BFS changes (absolute values) at 40, 60, and 80 °C are 158, 285, and 510 MHz (corresponding to the temperature changes of approximately 9, 16, and 30 °C), respectively. Therefore, some countermeasure against humidity is indispensable in implementing strain/temperature sensors based on Brillouin scattering in POFs especially at higher temperature. On the other hand, Brillouin-based distributed humidity sensors can be developed by exploiting the BFS dependence on water absorption in POFs.",

keywords = "Brillouin frequency shift, Brillouin scattering, Plastic optical fiber sensors, Strain/temperature sensing, Water absorption",

author = "K. Minakawa and K. Koike and N. Hayashi and Y. Koike and Y. Mizuno and K. Nakamura",

note = "Funding Information: The authors are indebted to Wei Qiu and Jiang Wu, Tokyo Institute of Technology, Japan, for their experimental assistance. They also acknowledge the staff of the Technical Department, Tokyo Institute of Technology, Japan, for fabricating the stage used in the experiments. This work was supported by JSPS KAKENHI Grant Numbers 25709032, 26630180, 25007652, and 15J11445, and by research grants from the Iwatani Naoji Foundation, the SCAT Foundation, and the Konica Minolta Science and Technology Foundation.; 24th International Conference on Plastic Optical Fibers, POF 2015 ; Conference date: 22-09-2015 Through 24-09-2015",

year = "2015",

language = "English",

pages = "244--247",

}

TY - CONF

T1 - Brillouin frequency shift dependence on water absorption in plastic optical fibers

AU - Minakawa, K.

AU - Koike, K.

AU - Hayashi, N.

AU - Koike, Y.

AU - Mizuno, Y.

AU - Nakamura, K.

N1 - Funding Information: The authors are indebted to Wei Qiu and Jiang Wu, Tokyo Institute of Technology, Japan, for their experimental assistance. They also acknowledge the staff of the Technical Department, Tokyo Institute of Technology, Japan, for fabricating the stage used in the experiments. This work was supported by JSPS KAKENHI Grant Numbers 25709032, 26630180, 25007652, and 15J11445, and by research grants from the Iwatani Naoji Foundation, the SCAT Foundation, and the Konica Minolta Science and Technology Foundation.

PY - 2015

Y1 - 2015

N2 - We study the dependence of Brillouin frequency shift (BFS) on water-absorption ratio in poly(methyl methacrylate)-based plastic optical fibers (POFs) to clarify the effect of the humidity on the POF-based Brillouin sensors. The BFS decreases monotonically as the water-absorption ratio increases, probably because of the decrease in the Young's modulus. At the same water-absorption ratio, the BFS change basically becomes larger with increasing temperature. The maximal BFS changes (absolute values) at 40, 60, and 80 °C are 158, 285, and 510 MHz (corresponding to the temperature changes of approximately 9, 16, and 30 °C), respectively. Therefore, some countermeasure against humidity is indispensable in implementing strain/temperature sensors based on Brillouin scattering in POFs especially at higher temperature. On the other hand, Brillouin-based distributed humidity sensors can be developed by exploiting the BFS dependence on water absorption in POFs.

AB - We study the dependence of Brillouin frequency shift (BFS) on water-absorption ratio in poly(methyl methacrylate)-based plastic optical fibers (POFs) to clarify the effect of the humidity on the POF-based Brillouin sensors. The BFS decreases monotonically as the water-absorption ratio increases, probably because of the decrease in the Young's modulus. At the same water-absorption ratio, the BFS change basically becomes larger with increasing temperature. The maximal BFS changes (absolute values) at 40, 60, and 80 °C are 158, 285, and 510 MHz (corresponding to the temperature changes of approximately 9, 16, and 30 °C), respectively. Therefore, some countermeasure against humidity is indispensable in implementing strain/temperature sensors based on Brillouin scattering in POFs especially at higher temperature. On the other hand, Brillouin-based distributed humidity sensors can be developed by exploiting the BFS dependence on water absorption in POFs.

KW - Brillouin frequency shift

KW - Brillouin scattering

KW - Plastic optical fiber sensors

KW - Strain/temperature sensing

KW - Water absorption

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M3 - Paper

AN - SCOPUS:84964635548

SP - 244

EP - 247

T2 - 24th International Conference on Plastic Optical Fibers, POF 2015

Y2 - 22 September 2015 through 24 September 2015

ER -

Brillouin frequency shift dependence on water absorption in plastic optical fibers

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Keywords

ASJC Scopus subject areas

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