Free-Form Optical Fiber with a Square Mode and Top-Hat Intensity Distribution.
effective medium theory
free‐form fibers
nanostructured fibers
optical fibers
Journal
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
ISSN: 2198-3844
Titre abrégé: Adv Sci (Weinh)
Pays: Germany
ID NLM: 101664569
Informations de publication
Date de publication:
28 Jun 2024
28 Jun 2024
Historique:
revised:
13
06
2024
received:
19
03
2024
medline:
28
6
2024
pubmed:
28
6
2024
entrez:
28
6
2024
Statut:
aheadofprint
Résumé
The development of bend-induced effectively single-mode fiber with a square cross-section and flat top-hat intensity distribution is reported using core topology nanostructuring dedicated to femtosecond laser ablation systems. The fiber's core comprises 5419 silica and germanium-doped silica nanorods with a diameter of 430 nm each arranged into a hexagonal lattice. The distribution of the rods is calculated using in-house developed code based on the Monte Carlo algorithm to obtain a target shape of mode and intensity distribution. As a proof-of-concept, a silica nanostructured fiber with a 24 µm core is developed and verified against the purity of mode guidance, bending, and guiding losses. It is shown that for a wavelength of 1030 nm, the fiber is effectively single-mode with 96% mode purity when bending with a radius of 20 cm is applied. The fiber has a measured mode area of 360 µm
Identifiants
pubmed: 38940404
doi: 10.1002/advs.202402886
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2402886Subventions
Organisme : National Centre for Research and Development in Poland, Łukasiewicz Centre
ID : PB-NWL-2021
Organisme : Narodowe Centrum Badań i Rozwoju
ID : TECHMATSTRATEG-III/0042/2019
Organisme : Narodowe Centrum Nauki
ID : MAESTRO UMO-2022/46/A/ST7/00238
Informations de copyright
© 2024 The Author(s). Advanced Science published by Wiley‐VCH GmbH.
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