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Design optimisation of C-shaped optical fibre sensor

Design optimisation of C-shaped optical fibre sensor
Design optimisation of C-shaped optical fibre sensor
Optical fibre sensors have attracted a lot of interest in the field of sensors. However, the limitation of conventional optical fibre sensors such as high fragility and low sensitivity need to be considered. This work demonstrated a simulation of a new optical sensor design, a C–shaped optical fibre sensor to overcome these limitations. The design optimization of the sensor was conducted by changing the remaining cladding thickness ranging from 5 to 0 µm and opening angle ranging from 70 to 110°. The change in refractive index ranging from 1.30 to 1.40 has been performed to evaluate the simulated sensing performance. The simulation results showed that reducing the cladding thickness and wider opening angle can improve the sensor’s sensitivity. In cladding thickness optimization, the sensor showed the highest sensitivity with no remaining cladding thickness. In the opening angle optimization, the highest sensitivity can be achieved at the maximum opening angle of 110°, but the sensitivity changes due to the the opening angle range were minimal compared to cladding thickness optimization. The best C–shaped sensing performance with 0 µm remaining cladding thickness and 110° opening angle was selected to be compared to the closest in term of design which is the D—shaped optical fibre sensor. Overall, the C–shaped design has more cladding sector region left providing better physical robustness and has high potential to act as a new refractive index sensor with an estimated sensitivity of up to 2.77893, higher than the simulated D–shaped optical fibre sensor with an estimated sensitivity of 2.77468.
C-shaped, Design, Optical fibre sensor, Refractive index, Simulation
0306-8919
Razali, Nazirah Mohd
b00ce415-7cc8-4348-b2c5-da0e68bd525d
Ambran, Sumiaty
9dab29a4-1179-4e21-acf6-182c12d29998
Holmes, Christopher
16306bb8-8a46-4fd7-bb19-a146758e5263
Zuikafly, Siti Nur Fatin
b7e1ba16-462b-4afc-a3c1-32de1c6d37e8
Lokman, Muhammad Quisar
cfa14ec1-0b97-4260-bbcd-4e3fbe2c8760
Yuzir, Ali
c7b735b6-a662-477f-9cf3-e5a2c9fcaa51
Sapingi, Husni Hani Jameela
54ffe17e-72a1-4275-b8fa-d894aeaed53f
Razali, Nazirah Mohd
b00ce415-7cc8-4348-b2c5-da0e68bd525d
Ambran, Sumiaty
9dab29a4-1179-4e21-acf6-182c12d29998
Holmes, Christopher
16306bb8-8a46-4fd7-bb19-a146758e5263
Zuikafly, Siti Nur Fatin
b7e1ba16-462b-4afc-a3c1-32de1c6d37e8
Lokman, Muhammad Quisar
cfa14ec1-0b97-4260-bbcd-4e3fbe2c8760
Yuzir, Ali
c7b735b6-a662-477f-9cf3-e5a2c9fcaa51
Sapingi, Husni Hani Jameela
54ffe17e-72a1-4275-b8fa-d894aeaed53f

Razali, Nazirah Mohd, Ambran, Sumiaty, Holmes, Christopher, Zuikafly, Siti Nur Fatin, Lokman, Muhammad Quisar, Yuzir, Ali and Sapingi, Husni Hani Jameela (2022) Design optimisation of C-shaped optical fibre sensor. Optical and Quantum Electronics, 54 (7), [421]. (doi:10.1007/s11082-022-03763-z).

Record type: Article

Abstract

Optical fibre sensors have attracted a lot of interest in the field of sensors. However, the limitation of conventional optical fibre sensors such as high fragility and low sensitivity need to be considered. This work demonstrated a simulation of a new optical sensor design, a C–shaped optical fibre sensor to overcome these limitations. The design optimization of the sensor was conducted by changing the remaining cladding thickness ranging from 5 to 0 µm and opening angle ranging from 70 to 110°. The change in refractive index ranging from 1.30 to 1.40 has been performed to evaluate the simulated sensing performance. The simulation results showed that reducing the cladding thickness and wider opening angle can improve the sensor’s sensitivity. In cladding thickness optimization, the sensor showed the highest sensitivity with no remaining cladding thickness. In the opening angle optimization, the highest sensitivity can be achieved at the maximum opening angle of 110°, but the sensitivity changes due to the the opening angle range were minimal compared to cladding thickness optimization. The best C–shaped sensing performance with 0 µm remaining cladding thickness and 110° opening angle was selected to be compared to the closest in term of design which is the D—shaped optical fibre sensor. Overall, the C–shaped design has more cladding sector region left providing better physical robustness and has high potential to act as a new refractive index sensor with an estimated sensitivity of up to 2.77893, higher than the simulated D–shaped optical fibre sensor with an estimated sensitivity of 2.77468.

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OQE (FINAL) - Accepted Manuscript
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Accepted/In Press date: 20 April 2022
Published date: 8 July 2022
Keywords: C-shaped, Design, Optical fibre sensor, Refractive index, Simulation

Identifiers

Local EPrints ID: 470627
URI: http://eprints.soton.ac.uk/id/eprint/470627
ISSN: 0306-8919
PURE UUID: a42d01db-8fa5-4233-aa9a-fc9c5b21b9bd
ORCID for Christopher Holmes: ORCID iD orcid.org/0000-0001-9021-3760

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Date deposited: 14 Oct 2022 17:06
Last modified: 17 Mar 2024 07:25

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Contributors

Author: Nazirah Mohd Razali
Author: Sumiaty Ambran
Author: Siti Nur Fatin Zuikafly
Author: Muhammad Quisar Lokman
Author: Ali Yuzir
Author: Husni Hani Jameela Sapingi

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