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Low-cost fiber Bragg grating interrogation with a femtosecond laser written scattering chip

Low-cost fiber Bragg grating interrogation with a femtosecond laser written scattering chip
Low-cost fiber Bragg grating interrogation with a femtosecond laser written scattering chip
Fiber Bragg gratings are the most popular type of optical fiber sensor. However, its commercial use is frequently limited by high cost and complexity of the interrogation unit. Here, an interrogator based on a femtosecond laser written silica scattering chip is designed and implemented. Such device can directly reconstruct strain, from the scattering speckle patterns, with a resolution of 70 μϵ (microstrain) within the range of 180-700 μϵ, limited by the slippage of the fiber coating, with the potential to be reduced with the system improvements.
Fiber Bragg gratings, Scattering, Speckle pattern, Laser scattering, Sensors, Fiber Bragg grating interrogators
1240806-1-1240806-7
Falak, Przemyslaw Ludwik
f414a5d1-34e8-429d-8f9a-f203b6d83324
Sun, Qi
66e3c3df-5a60-4927-a47a-c4f6020c2fc0
Vettenburg, Tom
7bf2aadc-de2c-489e-8466-48f13595ceb2
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Phillips, David
96ee79d3-d922-4f85-ac56-f4196c9377fb
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Falak, Przemyslaw Ludwik
f414a5d1-34e8-429d-8f9a-f203b6d83324
Sun, Qi
66e3c3df-5a60-4927-a47a-c4f6020c2fc0
Vettenburg, Tom
7bf2aadc-de2c-489e-8466-48f13595ceb2
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Phillips, David
96ee79d3-d922-4f85-ac56-f4196c9377fb
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b

Falak, Przemyslaw Ludwik, Sun, Qi, Vettenburg, Tom, Lee, Timothy, Phillips, David, Brambilla, Gilberto and Beresna, Martynas (2023) Low-cost fiber Bragg grating interrogation with a femtosecond laser written scattering chip. In Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVIII. vol. 1240806, 1240806-1-1240806-7 . (doi:10.1117/12.2648760).

Record type: Conference or Workshop Item (Paper)

Abstract

Fiber Bragg gratings are the most popular type of optical fiber sensor. However, its commercial use is frequently limited by high cost and complexity of the interrogation unit. Here, an interrogator based on a femtosecond laser written silica scattering chip is designed and implemented. Such device can directly reconstruct strain, from the scattering speckle patterns, with a resolution of 70 μϵ (microstrain) within the range of 180-700 μϵ, limited by the slippage of the fiber coating, with the potential to be reduced with the system improvements.

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More information

Published date: 17 March 2023
Venue - Dates: SPIE Photonics West 2023, The Moscone Center, San Francisco, United States, 2023-01-28 - 2023-02-02
Keywords: Fiber Bragg gratings, Scattering, Speckle pattern, Laser scattering, Sensors, Fiber Bragg grating interrogators

Identifiers

Local EPrints ID: 475567
URI: http://eprints.soton.ac.uk/id/eprint/475567
PURE UUID: 35041bf1-f0c6-4acd-a487-be4d2e166e61
ORCID for Przemyslaw Ludwik Falak: ORCID iD orcid.org/0000-0002-2970-0700
ORCID for Qi Sun: ORCID iD orcid.org/0000-0002-0850-5463
ORCID for Timothy Lee: ORCID iD orcid.org/0000-0001-9665-5578
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

Catalogue record

Date deposited: 21 Mar 2023 17:47
Last modified: 31 May 2023 01:55

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Contributors

Author: Przemyslaw Ludwik Falak ORCID iD
Author: Qi Sun ORCID iD
Author: Tom Vettenburg
Author: Timothy Lee ORCID iD
Author: David Phillips

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