Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers
We numerically investigate the role of cladding geometries in two widely used anti-resonant hollow-core fiber designs with negative curvatures, the tubular negative-curvature fiber and ice-cream-cone negative-curvature fiber. The confinement loss governed by the inhibited coupling between the modes...
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sg-ntu-dr.10356-1577902022-09-21T07:11:23Z Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers Deng, Ang Md Imran Hasan Wang, Yuxi Chang, Wonkeun School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Antiresonant Optical Fibers We numerically investigate the role of cladding geometries in two widely used anti-resonant hollow-core fiber designs with negative curvatures, the tubular negative-curvature fiber and ice-cream-cone negative-curvature fiber. The confinement loss governed by the inhibited coupling between the modes in the core and cladding is thoroughly examined systematically against the core-cladding curvature for both types. We show that, in addition to the mode-index mismatch, the mode-field overlap also plays a key role in determining the loss. Simultaneously, we find the ice-cream-cone negative-curvature fiber can exhibit better loss performance than the tubular design within a specific range of the curvature. This enhancement is achieved without sacrificing the transmission bandwidth and is relatively robust against the fabrication error. Ministry of Education (MOE) Published version Ministry of Education - Singapore (2018-T1-001-048). 2022-05-13T01:26:32Z 2022-05-13T01:26:32Z 2020 Journal Article Deng, A., Md Imran Hasan, Wang, Y. & Chang, W. (2020). Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers. Optics Express, 28(19), 27974-27988. https://dx.doi.org/10.1364/OE.400267 1094-4087 https://hdl.handle.net/10356/157790 10.1364/OE.400267 28 2-s2.0-85091847299 19 28 27974 27988 en 2018-T1-001-048 Optics Express 10.21979/N9/CZXIP8 © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for noncommercial purposes and appropriate attribution is maintained. All other rights are reserved. application/pdf |
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Engineering::Electrical and electronic engineering Antiresonant Optical Fibers Deng, Ang Md Imran Hasan Wang, Yuxi Chang, Wonkeun Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers |
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We numerically investigate the role of cladding geometries in two widely used anti-resonant hollow-core fiber designs with negative curvatures, the tubular negative-curvature fiber and ice-cream-cone negative-curvature fiber. The confinement loss governed by the inhibited coupling between the modes in the core and cladding is thoroughly examined systematically against the core-cladding curvature for both types. We show that, in addition to the mode-index mismatch, the mode-field overlap also plays a key role in determining the loss. Simultaneously, we find the ice-cream-cone negative-curvature fiber can exhibit better loss performance than the tubular design within a specific range of the curvature. This enhancement is achieved without sacrificing the transmission bandwidth and is relatively robust against the fabrication error. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Deng, Ang Md Imran Hasan Wang, Yuxi Chang, Wonkeun |
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Article |
author |
Deng, Ang Md Imran Hasan Wang, Yuxi Chang, Wonkeun |
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Deng, Ang |
title |
Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers |
title_short |
Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers |
title_full |
Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers |
title_fullStr |
Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers |
title_full_unstemmed |
Analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers |
title_sort |
analyzing mode index mismatch and field overlap for light guidance in negative-curvature fibers |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/157790 |
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1745574610832719872 |