Distributed measurement of gas pressure dynamics in as-drawn hollow-core fibres
Distributed measurement of gas pressure dynamics in as-drawn hollow-core fibres
After fabrication, the gas pressure inside the core and cladding of hollow-core fibres is significantly below atmospheric pressure. If such an “as-drawn” fibre is then exposed to the atmosphere, pressure-driven flow will push gas from the surrounding environment into the core and cladding holes at different rates, affecting its performance. We use optical time-domain reflectometry to study the length-distributed gas flow dynamics in an as-drawn double-nested antiresonant nodeless fibre (DNANF). For the first time, we show measurement of the initial “as-drawn" pressure distribution along the fibre length and its subsequent evolution over time. Experimental measurements are then compared with gas flow simulations, to enable prediction of pressure equalisation times.
Fibre optics, gas dynamics, gas filling
Elistratova, Elizaveta
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Kelly, Thomas W.
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Davidson, Ian A.
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Rzegocki, Jaroslaw
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Amouzad Mahdiraji, Ghafour
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Pradhan, Somarpita
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Taranta, Austin
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Poletti, Francesco
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Slavík, Radan
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Horak, Peter
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Wheeler, Natalie V.
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20 June 2024
Elistratova, Elizaveta
5b5fd0c8-9c2f-4768-9aaa-f611c0396ac5
Kelly, Thomas W.
64bf9b49-b287-4d23-8809-a2627f8d4bf2
Davidson, Ian A.
b685f949-e9e4-4e6b-9a59-36739de06a61
Rzegocki, Jaroslaw
7f7c7027-4b9d-48ab-879b-956f7c3c28e1
Amouzad Mahdiraji, Ghafour
8c7baef3-b155-4109-99da-3bfd3251f649
Pradhan, Somarpita
49acdab1-62de-409d-8ecf-8d211bbadace
Taranta, Austin
bc2e834f-0d85-44a1-a874-8150df1f73d9
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Wheeler, Natalie V.
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Elistratova, Elizaveta, Kelly, Thomas W., Davidson, Ian A., Rzegocki, Jaroslaw, Amouzad Mahdiraji, Ghafour, Pradhan, Somarpita, Taranta, Austin, Poletti, Francesco, Slavík, Radan, Horak, Peter and Wheeler, Natalie V.
(2024)
Distributed measurement of gas pressure dynamics in as-drawn hollow-core fibres.
In Specialty Optical Fibres VIII.
vol. PC13001,
SPIE..
(doi:10.1117/12.3017534).
Record type:
Conference or Workshop Item
(Paper)
Abstract
After fabrication, the gas pressure inside the core and cladding of hollow-core fibres is significantly below atmospheric pressure. If such an “as-drawn” fibre is then exposed to the atmosphere, pressure-driven flow will push gas from the surrounding environment into the core and cladding holes at different rates, affecting its performance. We use optical time-domain reflectometry to study the length-distributed gas flow dynamics in an as-drawn double-nested antiresonant nodeless fibre (DNANF). For the first time, we show measurement of the initial “as-drawn" pressure distribution along the fibre length and its subsequent evolution over time. Experimental measurements are then compared with gas flow simulations, to enable prediction of pressure equalisation times.
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More information
Published date: 20 June 2024
Venue - Dates:
SPIE Photonics Europe 2024, , Strasbourg, France, 2024-04-07 - 2024-04-11
Keywords:
Fibre optics, gas dynamics, gas filling
Identifiers
Local EPrints ID: 495192
URI: http://eprints.soton.ac.uk/id/eprint/495192
PURE UUID: f340f785-952b-46fb-af76-ee4d44104445
Catalogue record
Date deposited: 31 Oct 2024 17:39
Last modified: 01 Nov 2024 02:47
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Contributors
Author:
Elizaveta Elistratova
Author:
Thomas W. Kelly
Author:
Ian A. Davidson
Author:
Jaroslaw Rzegocki
Author:
Ghafour Amouzad Mahdiraji
Author:
Somarpita Pradhan
Author:
Austin Taranta
Author:
Francesco Poletti
Author:
Radan Slavík
Author:
Peter Horak
Author:
Natalie V. Wheeler
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