Strain and temperature sensor using few-mode fiber, designing guidelines and results

Ninik Irawati; Lars Grüner-Nielsen; Lars Søgaard Rishøj; Karsten Rottwitt

doi:10.1016/j.yofte.2023.103465

Strain and temperature sensor using few-mode fiber, designing guidelines and results

Ninik Irawati^*, Lars Grüner-Nielsen, Lars Søgaard Rishøj, Karsten Rottwitt

^*Corresponding author for this work

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Abstract

Strain and temperature sensing based on mode interference in a few-mode fiber is analyzed theoretically and experimentally. The effect of using different mode combinations is explored. A fiber guiding four LP modes is investigated as an example. Good agreement between modeling and experimental results is found for strain sensor. We demonstrate the sensors feasibility by measuring strain ranging from 0 mm to 16 mm with a sensitivity of 3.43 nm/mm and measuring temperature ranging from 30 ^◦C to 100 ^◦C with a sensitivity of 4.8 pm/^◦C.

Original language	English
Article number	103465
Journal	Optical Fiber Technology
Volume	80
Number of pages	7
ISSN	1068-5200
DOIs	https://doi.org/10.1016/j.yofte.2023.103465
Publication status	Published - 2023

Keywords

Few mode fiber
Optical fiber sensors
Strain sensor
Temperature sensor

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title = "Strain and temperature sensor using few-mode fiber, designing guidelines and results",

abstract = "Strain and temperature sensing based on mode interference in a few-mode fiber is analyzed theoretically and experimentally. The effect of using different mode combinations is explored. A fiber guiding four LP modes is investigated as an example. Good agreement between modeling and experimental results is found for strain sensor. We demonstrate the sensors feasibility by measuring strain ranging from 0 mm to 16 mm with a sensitivity of 3.43 nm/mm and measuring temperature ranging from 30 ◦C to 100 ◦C with a sensitivity of 4.8 pm/◦C.",

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AU - Irawati, Ninik

AU - Grüner-Nielsen, Lars

AU - Søgaard Rishøj, Lars

AU - Rottwitt, Karsten

PY - 2023

Y1 - 2023

N2 - Strain and temperature sensing based on mode interference in a few-mode fiber is analyzed theoretically and experimentally. The effect of using different mode combinations is explored. A fiber guiding four LP modes is investigated as an example. Good agreement between modeling and experimental results is found for strain sensor. We demonstrate the sensors feasibility by measuring strain ranging from 0 mm to 16 mm with a sensitivity of 3.43 nm/mm and measuring temperature ranging from 30 ◦C to 100 ◦C with a sensitivity of 4.8 pm/◦C.

AB - Strain and temperature sensing based on mode interference in a few-mode fiber is analyzed theoretically and experimentally. The effect of using different mode combinations is explored. A fiber guiding four LP modes is investigated as an example. Good agreement between modeling and experimental results is found for strain sensor. We demonstrate the sensors feasibility by measuring strain ranging from 0 mm to 16 mm with a sensitivity of 3.43 nm/mm and measuring temperature ranging from 30 ◦C to 100 ◦C with a sensitivity of 4.8 pm/◦C.

KW - Few mode fiber

KW - Optical fiber sensors

KW - Strain sensor

KW - Temperature sensor

U2 - 10.1016/j.yofte.2023.103465

DO - 10.1016/j.yofte.2023.103465

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VL - 80

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JF - Optical Fiber Technology

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ER -

Strain and temperature sensor using few-mode fiber, designing guidelines and results

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