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Kilowatt-average-power single-mode laser light transmission over kilometre-scale hollow-core fibre

Kilowatt-average-power single-mode laser light transmission over kilometre-scale hollow-core fibre
Kilowatt-average-power single-mode laser light transmission over kilometre-scale hollow-core fibre
High-power laser delivery with near-diffraction-limited beam quality is typically limited to tens of metres distances by nonlinearity-induced spectral broadening inside the glass core of delivery fibres. Anti-resonant hollow-core fibres offer not only orders-of-magnitude lower nonlinearity but also loss and modal purity comparable to conventional beam-delivery fibres. Using a single-mode hollow-core nested anti-resonant nodeless fibre with 0.74 dB km−1 loss, we demonstrate the delivery of 1 kW of near-diffraction-limited continuous-wave laser light over a 1 km distance, with a total throughput efficiency of ~80%. From simulations, a further improvement in transmitted power or length of more than one order of magnitude should be possible in such air-filled fibres, and considerably more if the core is evacuated. This paves the way to multi-kilometre, kilowatt-scale power delivery that is potentially useful not only for future manufacturing and subsurface drilling but also for new scientific possibilities in sensing, particle acceleration and gravitational wave detection.
1749-4885
448-453
Mulvad, Hans C.
b461b05f-88f2-4f28-b20a-e45cf258f456
Abokhamis Mousavi, Seyed Mohammad
5cde8762-0a43-461c-a124-857d1aca102b
Zuba, Viktor
b9029020-7dc8-4f52-ab55-da501568b17e
Xu, Lin
b887cecd-d21e-49f4-9b45-6909a7369e84
Sakr, Hesham
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Bradley, Thomas
d4cce4f3-bb69-4e14-baee-cd6a88e38101
Hayes, John
a6d3acd6-d7d5-4614-970e-0e8c594e48e2
Jasion, Gregory
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Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Taranta, Austin
bc2e834f-0d85-44a1-a874-8150df1f73d9
Alam, S.U.
aa445c30-89db-47ed-b708-719c6c12145d
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Mulvad, Hans C.
b461b05f-88f2-4f28-b20a-e45cf258f456
Abokhamis Mousavi, Seyed Mohammad
5cde8762-0a43-461c-a124-857d1aca102b
Zuba, Viktor
b9029020-7dc8-4f52-ab55-da501568b17e
Xu, Lin
b887cecd-d21e-49f4-9b45-6909a7369e84
Sakr, Hesham
5ec2d89f-ab6e-4690-bbfd-b95fa4cb792d
Bradley, Thomas
d4cce4f3-bb69-4e14-baee-cd6a88e38101
Hayes, John
a6d3acd6-d7d5-4614-970e-0e8c594e48e2
Jasion, Gregory
16cfff1d-d178-41d1-a092-56e6239726b8
Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Taranta, Austin
bc2e834f-0d85-44a1-a874-8150df1f73d9
Alam, S.U.
aa445c30-89db-47ed-b708-719c6c12145d
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491

Mulvad, Hans C., Abokhamis Mousavi, Seyed Mohammad, Zuba, Viktor, Xu, Lin, Sakr, Hesham, Bradley, Thomas, Hayes, John, Jasion, Gregory, Numkam Fokoua, Eric, Taranta, Austin, Alam, S.U., Richardson, David J. and Poletti, Francesco (2022) Kilowatt-average-power single-mode laser light transmission over kilometre-scale hollow-core fibre. Nature Photonics, 16 (6), 448-453. (doi:10.1038/s41566-022-01000-3).

Record type: Article

Abstract

High-power laser delivery with near-diffraction-limited beam quality is typically limited to tens of metres distances by nonlinearity-induced spectral broadening inside the glass core of delivery fibres. Anti-resonant hollow-core fibres offer not only orders-of-magnitude lower nonlinearity but also loss and modal purity comparable to conventional beam-delivery fibres. Using a single-mode hollow-core nested anti-resonant nodeless fibre with 0.74 dB km−1 loss, we demonstrate the delivery of 1 kW of near-diffraction-limited continuous-wave laser light over a 1 km distance, with a total throughput efficiency of ~80%. From simulations, a further improvement in transmitted power or length of more than one order of magnitude should be possible in such air-filled fibres, and considerably more if the core is evacuated. This paves the way to multi-kilometre, kilowatt-scale power delivery that is potentially useful not only for future manufacturing and subsurface drilling but also for new scientific possibilities in sensing, particle acceleration and gravitational wave detection.

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Accepted/In Press date: 7 April 2022
Published date: 30 May 2022
Additional Information: Funding Information: We gratefully acknowledge support from the European Research Council (ERC) (grant agreement number 682724, ‘Lightpipe’), the UK Engineering and Physical Sciences Research Council (EPSRC) (programme grant EP/P030181/1, ‘Airguide Photonics’) and Saudi Aramco. The Royal Academy of Engineering is acknowledged for funding of Research Fellowships RF1516\15\46 (G.T.J.) and RF\201819\18\200 (E.N.F.). SPI is acknowledged for advice, useful discussions and for providing a laser source for initial tests. C. R. Smith and H. Kim are acknowledged for early contributions on the coupling of high-power laser beams into hollow-core fibres and for assistance with the splicing of NANF fibres, respectively. Y. Chen is acknowledged for advice and assistance with fibre fabrication.
Related URLs:
Learn more about Zepler Institute for Photonics and Nanoelectronics research Learn more about Zepler Institute for Photonics and Nanoelectronics research Learn more about Institute for Life Sciences research

Identifiers

Local EPrints ID: 468450
URI: http://eprints.soton.ac.uk/id/eprint/468450
DOI: doi:10.1038/s41566-022-01000-3
ISSN: 1749-4885
PURE UUID: 80547a95-1b74-41ce-9f09-51dd44fafcf8
ORCID for Hans C. Mulvad: ORCID iD orcid.org/0000-0003-2552-0742
ORCID for Seyed Mohammad Abokhamis Mousavi: ORCID iD orcid.org/0000-0002-5250-2630
ORCID for Lin Xu: ORCID iD orcid.org/0000-0002-4074-3883
ORCID for Hesham Sakr: ORCID iD orcid.org/0000-0002-4154-8414
ORCID for Thomas Bradley: ORCID iD orcid.org/0000-0001-6568-5811
ORCID for Gregory Jasion: ORCID iD orcid.org/0000-0001-5030-6479
ORCID for Eric Numkam Fokoua: ORCID iD orcid.org/0000-0003-0873-911X
ORCID for Austin Taranta: ORCID iD orcid.org/0000-0002-5666-6800
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058
ORCID for Francesco Poletti: ORCID iD orcid.org/0000-0002-1000-3083

Catalogue record

Date deposited: 15 Aug 2022 17:01
Last modified: 17 Mar 2024 07:12

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Contributors

Author: Hans C. Mulvad ORCID iD
Author: Seyed Mohammad Abokhamis Mousavi ORCID iD
Author: Viktor Zuba
Author: Lin Xu ORCID iD
Author: Hesham Sakr ORCID iD
Author: Thomas Bradley ORCID iD
Author: John Hayes
Author: Gregory Jasion ORCID iD
Author: Eric Numkam Fokoua ORCID iD
Author: Austin Taranta ORCID iD
Author: S.U. Alam
Author: David J. Richardson ORCID iD
Author: Francesco Poletti ORCID iD

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