Low-loss and low-back-reflection hollow-core to standard fiber interconnection
Low-loss and low-back-reflection hollow-core to standard fiber interconnection
We present a new approach to permanently interconnect hollow-core fiber (HCF) to solid-core fiber, which does not involve fusion splicing. Our approach is based on a modification of the glue-based fiber-array technology routinely used for fiber pigtailing of planar lightwave circuits. The resulting interconnection provides for a low insertion loss due to the fact that the HCF microstructure is not deformed during the gluing (low temperature) process that is almost impossible to achieve with the standard (high temperature) fusion splicing method. Furthermore, this low temperature technique enables the reposition and preservation of thin films deposited at the solid-to-hollow core fiber interface, allowing for additional functionality without the introduction of extra losses or any increase in complexity. To demonstrate this, we have applied an anti-reflection (AR) coating. A further feature of our approach is the ability to control very precisely the length of the graded-index (GRIN) fiber mode field (MF) adapter inserted in between the standard single-mode fiber (SMF-28) and the HCF. We show experimentally how the length of the GRIN fiber MF adapter influences the coupling between the SMF-28 and the fundamental as well as higher order modes of the HCF. We coupled between SMF-28 (10µm Mode Field Diameter, (MFD)) and the fundamental mode of a 19-cell hollow-core photonic bandgap fiber (HC-PBGF, 21.1µm MFD) with the lowest-ever reported insertion loss of 0.30dB per interface.
723-726
Komanec, Matej
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Suslov, Dmytro
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Zvanovec, Stanislav
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Chen, Yong
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Bradley, Thomas
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Sandoghchi, Seyed Reza
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Numkam Fokoua, Eric
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Jasion, Gregory
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Petrovich, Marco
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Poletti, Francesco
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Richardson, David
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Slavík, Radan
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15 May 2019
Komanec, Matej
be991afd-3cb0-458a-a7c8-4557051e2bcf
Suslov, Dmytro
5a67f33b-9b3a-428e-910e-9fbc8d1a6248
Zvanovec, Stanislav
037bcfba-8cc7-4f6f-8226-72d29fe7e636
Chen, Yong
0bfb3083-4cd2-4463-a7a4-f48c4158b15a
Bradley, Thomas
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Sandoghchi, Seyed Reza
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Numkam Fokoua, Eric
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Jasion, Gregory
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Petrovich, Marco
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Poletti, Francesco
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Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Komanec, Matej, Suslov, Dmytro, Zvanovec, Stanislav, Chen, Yong, Bradley, Thomas, Sandoghchi, Seyed Reza, Numkam Fokoua, Eric, Jasion, Gregory, Petrovich, Marco, Poletti, Francesco, Richardson, David and Slavík, Radan
(2019)
Low-loss and low-back-reflection hollow-core to standard fiber interconnection.
IEEE Photonics Technology Letters, 31 (10), .
(doi:10.1109/LPT.2019.2902635).
Abstract
We present a new approach to permanently interconnect hollow-core fiber (HCF) to solid-core fiber, which does not involve fusion splicing. Our approach is based on a modification of the glue-based fiber-array technology routinely used for fiber pigtailing of planar lightwave circuits. The resulting interconnection provides for a low insertion loss due to the fact that the HCF microstructure is not deformed during the gluing (low temperature) process that is almost impossible to achieve with the standard (high temperature) fusion splicing method. Furthermore, this low temperature technique enables the reposition and preservation of thin films deposited at the solid-to-hollow core fiber interface, allowing for additional functionality without the introduction of extra losses or any increase in complexity. To demonstrate this, we have applied an anti-reflection (AR) coating. A further feature of our approach is the ability to control very precisely the length of the graded-index (GRIN) fiber mode field (MF) adapter inserted in between the standard single-mode fiber (SMF-28) and the HCF. We show experimentally how the length of the GRIN fiber MF adapter influences the coupling between the SMF-28 and the fundamental as well as higher order modes of the HCF. We coupled between SMF-28 (10µm Mode Field Diameter, (MFD)) and the fundamental mode of a 19-cell hollow-core photonic bandgap fiber (HC-PBGF, 21.1µm MFD) with the lowest-ever reported insertion loss of 0.30dB per interface.
Text
Low-Loss and Low-Back-Reflection Hollow-Core to Standard Fiber Interconnection - Final version DOI
- Accepted Manuscript
More information
Accepted/In Press date: 1 March 2019
e-pub ahead of print date: 4 March 2019
Published date: 15 May 2019
Identifiers
Local EPrints ID: 429361
URI: http://eprints.soton.ac.uk/id/eprint/429361
ISSN: 1041-1135
PURE UUID: e06d9180-fd41-4413-803e-d394744ca8a3
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Date deposited: 26 Mar 2019 17:30
Last modified: 10 Apr 2024 04:07
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Contributors
Author:
Matej Komanec
Author:
Dmytro Suslov
Author:
Stanislav Zvanovec
Author:
Thomas Bradley
Author:
Seyed Reza Sandoghchi
Author:
Eric Numkam Fokoua
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