Hollow-core fibers with reduced surface roughness and ultralow loss in the short-wavelength range.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
28 Feb 2023
28 Feb 2023
Historique:
received:
25
07
2022
accepted:
14
02
2023
entrez:
28
2
2023
pubmed:
1
3
2023
medline:
1
3
2023
Statut:
epublish
Résumé
While optical fibers display excellent performances in the infrared, visible and ultraviolet ranges remain poorly addressed by them. Obtaining better fibers for the short-wavelength range has been restricted, in all fiber optics, by scattering processes. In hollow-core fibers, the scattering loss arises from the core roughness and represents the limiting factor for loss reduction regardless of the cladding confinement power. Here, we report on the reduction of the core surface roughness of hollow-core fibers by modifying their fabrication technique. The effect of the modified process has been quantified and the results showed a root-mean-square surface roughness reduction from 0.40 to 0.15 nm. The improvement in the core surface entailed fibers with ultralow loss at short wavelengths. The results reveal this approach as a promising path for the development of hollow-core fibers with loss that can potentially be orders of magnitude lower than the ones achievable with silica-core counterparts.
Identifiants
pubmed: 36854713
doi: 10.1038/s41467-023-36785-6
pii: 10.1038/s41467-023-36785-6
pmc: PMC9975175
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1146Informations de copyright
© 2023. The Author(s).
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