Designing multi-mode anti-resonant hollow-core fibers for industrial laser power delivery
Designing multi-mode anti-resonant hollow-core fibers for industrial laser power delivery
We investigate the design of hollow-core fibers for the delivery of 10s of kilowatt average power from multi-mode laser sources. For such lasers, delivery through solid-core fibers is typically limited by nonlinear optical effects to 10s of meters of distance. Techniques are presented here for the design of multi-mode anti-resonant fibers that can efficiently couple and transmit light from these lasers. By numerical simulation we analyze the performance of two anti-resonant fibers targeting continuous-wave lasers with M
2 up to 13 and find they are capable of delivering MW-level power over several kilometers with low leakage loss, and at bend radii as small as 35 cm. Pulsed lasers are also investigated and numerical simulations indicate that optimized fibers could in principle deliver nanosecond pulses with greater than 100 mJ pulse energy over distances up to 1 km. This would be orders of magnitude higher power and longer distances than in typical machining applications using the best available solid core fibers.
40425-40440
Shere, William
e52eb8bd-32a5-4fb8-a343-69cb306070d0
Jasion, Gregory
16cfff1d-d178-41d1-a092-56e6239726b8
Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
24 October 2022
Shere, William
e52eb8bd-32a5-4fb8-a343-69cb306070d0
Jasion, Gregory
16cfff1d-d178-41d1-a092-56e6239726b8
Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Shere, William, Jasion, Gregory, Numkam Fokoua, Eric and Poletti, Francesco
(2022)
Designing multi-mode anti-resonant hollow-core fibers for industrial laser power delivery.
Optics Express, 30 (22), .
(doi:10.1364/OE.473681).
Abstract
We investigate the design of hollow-core fibers for the delivery of 10s of kilowatt average power from multi-mode laser sources. For such lasers, delivery through solid-core fibers is typically limited by nonlinear optical effects to 10s of meters of distance. Techniques are presented here for the design of multi-mode anti-resonant fibers that can efficiently couple and transmit light from these lasers. By numerical simulation we analyze the performance of two anti-resonant fibers targeting continuous-wave lasers with M
2 up to 13 and find they are capable of delivering MW-level power over several kilometers with low leakage loss, and at bend radii as small as 35 cm. Pulsed lasers are also investigated and numerical simulations indicate that optimized fibers could in principle deliver nanosecond pulses with greater than 100 mJ pulse energy over distances up to 1 km. This would be orders of magnitude higher power and longer distances than in typical machining applications using the best available solid core fibers.
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oe-30-22-40425
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Accepted/In Press date: 13 October 2022
Published date: 24 October 2022
Additional Information:
Funding Information:
Acknowledgments. ENF acknowledges support from a Royal Academy of Engineering University Research Fellowship. FP gratefully acknowledges funding from the ERC project Lightpipe (grant number 682724).
Publisher Copyright:
Journal © 2022.
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Local EPrints ID: 471435
URI: http://eprints.soton.ac.uk/id/eprint/471435
ISSN: 1094-4087
PURE UUID: 2545d3ea-c244-411b-96f1-f546d3d84783
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Date deposited: 08 Nov 2022 18:09
Last modified: 17 Mar 2024 03:32
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Author:
William Shere
Author:
Eric Numkam Fokoua
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