Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery

We present the selective excitation of the fundamental mode in an anti-resonant hollow-core fiber (ARHCF) fusion-spliced with a commercial large mode area (LMA) fiber. By designing and fabricating a single-ring ARHCF that is mode-matched to a LMA fiber and by splicing the two using a CO2 laser-based...

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Main Authors: Goel, Charu, Li, Huizi, Muhammad Rosdi Abu Hassan, Chang, Wonkeun, Yoo, Seongwoo
Other Authors: School of Electrical and Electronic Engineering
Format: Journal Article
Language:English
Published: 2022
Subjects:
Online Access:https://hdl.handle.net/10356/156841
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author Goel, Charu
Li, Huizi
Muhammad Rosdi Abu Hassan
Chang, Wonkeun
Yoo, Seongwoo
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Goel, Charu
Li, Huizi
Muhammad Rosdi Abu Hassan
Chang, Wonkeun
Yoo, Seongwoo
author_sort Goel, Charu
collection NTU
description We present the selective excitation of the fundamental mode in an anti-resonant hollow-core fiber (ARHCF) fusion-spliced with a commercial large mode area (LMA) fiber. By designing and fabricating a single-ring ARHCF that is mode-matched to a LMA fiber and by splicing the two using a CO2 laser-based splicer, we achieve a coupling efficiency of 91.2% into the fundamental mode. We also demonstrate an all-fiber integration of an ARHCF with a commercial ytterbium-doped fiber in a laser cavity for beam delivery application. Coupling of the single-mode laser output beam into the fundamental mode of the ARHCF is demonstrated with 90.4% efficiency (<0.45dB loss) for up to 50 W continuous wave beam in a stable and alignment-free all-fiber laser setup.
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spelling ntu-10356/1568412022-06-22T05:45:35Z Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery Goel, Charu Li, Huizi Muhammad Rosdi Abu Hassan Chang, Wonkeun Yoo, Seongwoo School of Electrical and Electronic Engineering The Photonics Institute Engineering::Electrical and electronic engineering Optical Fibre Coupling Efficiency We present the selective excitation of the fundamental mode in an anti-resonant hollow-core fiber (ARHCF) fusion-spliced with a commercial large mode area (LMA) fiber. By designing and fabricating a single-ring ARHCF that is mode-matched to a LMA fiber and by splicing the two using a CO2 laser-based splicer, we achieve a coupling efficiency of 91.2% into the fundamental mode. We also demonstrate an all-fiber integration of an ARHCF with a commercial ytterbium-doped fiber in a laser cavity for beam delivery application. Coupling of the single-mode laser output beam into the fundamental mode of the ARHCF is demonstrated with 90.4% efficiency (<0.45dB loss) for up to 50 W continuous wave beam in a stable and alignment-free all-fiber laser setup. National Research Foundation (NRF) Submitted/Accepted version National Research Foundation Singapore, Quantum Engineering Programme. 2022-04-27T04:40:14Z 2022-04-27T04:40:14Z 2021 Journal Article Goel, C., Li, H., Muhammad Rosdi Abu Hassan, Chang, W. & Yoo, S. (2021). Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery. Optics Letters, 46(17), 4374-4377. https://dx.doi.org/10.1364/OL.436054 0146-9592 https://hdl.handle.net/10356/156841 10.1364/OL.436054 34470018 2-s2.0-85114122329 17 46 4374 4377 en QEP-P4 Optics Letters 10.21979/N9/FOOMTH © 2021 Optical Society of America. All rights reserved. This paper was published in Optics Letters and is made available with permission of Optical Society of America. application/pdf
spellingShingle Engineering::Electrical and electronic engineering
Optical Fibre
Coupling Efficiency
Goel, Charu
Li, Huizi
Muhammad Rosdi Abu Hassan
Chang, Wonkeun
Yoo, Seongwoo
Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery
title Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery
title_full Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery
title_fullStr Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery
title_full_unstemmed Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery
title_short Anti-resonant hollow-core fiber fusion spliced to laser gain fiber for high-power beam delivery
title_sort anti resonant hollow core fiber fusion spliced to laser gain fiber for high power beam delivery
topic Engineering::Electrical and electronic engineering
Optical Fibre
Coupling Efficiency
url https://hdl.handle.net/10356/156841
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