Low loss and broadband low back-reflection interconnection between a hollow-core and standard single-mode fiber
Low loss and broadband low back-reflection interconnection between a hollow-core and standard single-mode fiber
We report simultaneous low coupling loss (below 0.2 dB at 1550 nm) and low back-reflection (below -60 dB in the 1200-1600 nm range) between a hollow core fiber and standard single mode optical fiber obtained through the combination of an angled interface and an anti-reflective coating. We perform experimental optimization of the interface angle to achieve the best combination of performance in terms of the coupling loss and back-reflection suppression. Furthermore, we examine parasitic cross-coupling to the higher-order modes and show that it does not degrade compared to the case of a flat interface, keeping it below -30 dB and below -20 dB for LP11 and LP02 modes respectively.
Hollow core fibers
Suslov, Dmytro
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Numkam Fokoua, Eric
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Dousek, Daniel
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Zhong, Ailing
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Zvanovec, Stanislav
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Bradley, Thomas
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Poletti, Francesco
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Richardson, David J.
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Komanec, Matěj
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Slavík, Radan
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Suslov, Dmytro
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Numkam Fokoua, Eric
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Dousek, Daniel
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Zhong, Ailing
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Zvanovec, Stanislav
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Bradley, Thomas
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Poletti, Francesco
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Richardson, David J.
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Komanec, Matěj
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Slavík, Radan
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Suslov, Dmytro, Numkam Fokoua, Eric, Dousek, Daniel, Zhong, Ailing, Zvanovec, Stanislav, Bradley, Thomas, Poletti, Francesco, Richardson, David J., Komanec, Matěj and Slavík, Radan
(2022)
Low loss and broadband low back-reflection interconnection between a hollow-core and standard single-mode fiber.
Optics Express.
(In Press)
Abstract
We report simultaneous low coupling loss (below 0.2 dB at 1550 nm) and low back-reflection (below -60 dB in the 1200-1600 nm range) between a hollow core fiber and standard single mode optical fiber obtained through the combination of an angled interface and an anti-reflective coating. We perform experimental optimization of the interface angle to achieve the best combination of performance in terms of the coupling loss and back-reflection suppression. Furthermore, we examine parasitic cross-coupling to the higher-order modes and show that it does not degrade compared to the case of a flat interface, keeping it below -30 dB and below -20 dB for LP11 and LP02 modes respectively.
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More information
In preparation date: 2022
Accepted/In Press date: 23 August 2022
Keywords:
Hollow core fibers
Identifiers
Local EPrints ID: 456593
URI: http://eprints.soton.ac.uk/id/eprint/456593
ISSN: 1094-4087
PURE UUID: 681d005a-796e-4177-b12f-79ef2f9302d1
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Date deposited: 05 May 2022 16:45
Last modified: 09 Feb 2023 02:50
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Contributors
Author:
Dmytro Suslov
Author:
Eric Numkam Fokoua
Author:
Daniel Dousek
Author:
Ailing Zhong
Author:
Stanislav Zvanovec
Author:
Thomas Bradley
Author:
Francesco Poletti
Author:
Matěj Komanec
Author:
Radan Slavík
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