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Temperature-independent vibration sensor based on Fabry-Perot interferometer using a fiber Bragg grating approach

Temperature-independent vibration sensor based on Fabry-Perot interferometer using a fiber Bragg grating approach
Temperature-independent vibration sensor based on Fabry-Perot interferometer using a fiber Bragg grating approach
An innovative vibration sensor based on a Fabry–Perot interferometer (FPI) using fiber Bragg grating (FBG) reflectors was demonstrated in this work. The sensor was designed to be compact and easy to fabricate, independent of temperature, to overcome limitations seen in previous designs, providing an effective correction for temperature effects in FBG-based FPI (FBG-FPI) sensors. A laser source with a peak wavelength of 1547.42 nm obtained from the FBG reflective peak was used to illuminate the FBG-FPI so that the light source was always within the FBG-FPI optimum wavelength operating range of 1547.15 to 1547.80 nm. The sensor was shown to capture a 3-kHz burst signal from a signal generator in 1-, 2-, and 3-Hz intervals. In addition, the work carried out has revealed that the sensor could be used to capture sinusoidal signals at frequencies up to 9 kHz, creating a performance comparable with many existing conventional piezoelectric sensors. Furthermore, the ability to operate regardless of any ambient temperature changes [from 26.5°C (room temperature) up to 80°C] opens the way to use such a sensor system over a wide range of engineering applications taking advantage of the next generation of FBG-based FPIs.
Fabry-Perot interferometer, fiber Bragg gratings, temperature-independent, vibration sensor
0091-3286
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Sa'ad, Muhammad Syamil Mohd
62e81c64-64b4-481a-a5b8-0d7228a11c5e
Ismail, Mohammad Faizal
2e29d35e-186a-4fee-a469-d6f6acdb484e
Zaini, Muhammad Khairol Annuar
1f1390f4-3677-4509-98f5-3a0d17bc1e46
Grattan, Kenneth T.V.
e434740d-2eca-42f5-8361-c7205863c8d8
Rahman, B.M. Azizur
78be29bb-612f-45e9-b147-6f6dc9da687c
Lim, Kok-Sing
2d088191-6801-4436-96b9-834c16a323cd
Ahmad, Harith
1d8a8135-0934-472a-848a-a5793f4f9c61
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Sa'ad, Muhammad Syamil Mohd
62e81c64-64b4-481a-a5b8-0d7228a11c5e
Ismail, Mohammad Faizal
2e29d35e-186a-4fee-a469-d6f6acdb484e
Zaini, Muhammad Khairol Annuar
1f1390f4-3677-4509-98f5-3a0d17bc1e46
Grattan, Kenneth T.V.
e434740d-2eca-42f5-8361-c7205863c8d8
Rahman, B.M. Azizur
78be29bb-612f-45e9-b147-6f6dc9da687c
Lim, Kok-Sing
2d088191-6801-4436-96b9-834c16a323cd
Ahmad, Harith
1d8a8135-0934-472a-848a-a5793f4f9c61

Brambilla, Gilberto, Sa'ad, Muhammad Syamil Mohd, Ismail, Mohammad Faizal, Zaini, Muhammad Khairol Annuar, Grattan, Kenneth T.V., Rahman, B.M. Azizur, Lim, Kok-Sing and Ahmad, Harith (2022) Temperature-independent vibration sensor based on Fabry-Perot interferometer using a fiber Bragg grating approach. Optical Engineering, 61 (3), [037101]. (doi:10.1117/1.OE.61.3.037101).

Record type: Article

Abstract

An innovative vibration sensor based on a Fabry–Perot interferometer (FPI) using fiber Bragg grating (FBG) reflectors was demonstrated in this work. The sensor was designed to be compact and easy to fabricate, independent of temperature, to overcome limitations seen in previous designs, providing an effective correction for temperature effects in FBG-based FPI (FBG-FPI) sensors. A laser source with a peak wavelength of 1547.42 nm obtained from the FBG reflective peak was used to illuminate the FBG-FPI so that the light source was always within the FBG-FPI optimum wavelength operating range of 1547.15 to 1547.80 nm. The sensor was shown to capture a 3-kHz burst signal from a signal generator in 1-, 2-, and 3-Hz intervals. In addition, the work carried out has revealed that the sensor could be used to capture sinusoidal signals at frequencies up to 9 kHz, creating a performance comparable with many existing conventional piezoelectric sensors. Furthermore, the ability to operate regardless of any ambient temperature changes [from 26.5°C (room temperature) up to 80°C] opens the way to use such a sensor system over a wide range of engineering applications taking advantage of the next generation of FBG-based FPIs.

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Temperature-independent Vibration Sensor Based on Fabry-Perot Interferometer using a Fiber Bragg Grating approach - Accepted Manuscript
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Accepted/In Press date: 22 February 2022
e-pub ahead of print date: 14 March 2022
Keywords: Fabry-Perot interferometer, fiber Bragg gratings, temperature-independent, vibration sensor

Identifiers

Local EPrints ID: 457421
URI: http://eprints.soton.ac.uk/id/eprint/457421
ISSN: 0091-3286
PURE UUID: 9851091a-6da2-409f-8ddb-65059bf7ba51
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

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Date deposited: 07 Jun 2022 16:54
Last modified: 28 Oct 2022 01:43

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Contributors

Author: Muhammad Syamil Mohd Sa'ad
Author: Mohammad Faizal Ismail
Author: Muhammad Khairol Annuar Zaini
Author: Kenneth T.V. Grattan
Author: B.M. Azizur Rahman
Author: Kok-Sing Lim
Author: Harith Ahmad

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