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Accurate Modelling of Fabricated Hollow-Core Photonic Bandgap Fibers

Accurate Modelling of Fabricated Hollow-Core Photonic Bandgap Fibers
Accurate Modelling of Fabricated Hollow-Core Photonic Bandgap Fibers
We report a novel approach to reconstruct the cross-sectional profile of fabricated hollow-core photonic bandgap fibers from scanning electron microscope images. Finite element simulations on the reconstructed geometries achieve a remarkable match with the measured transmission window, surface mode position and attenuation. The agreement between estimated scattering loss from surface roughness and measured loss values indicates that structural distortions, in particular the uneven distribution of glass across the thin silica struts on the core boundary, have a strong impact on the loss. This provides insight into the differences between idealized models and fabricated fibers, which could be key to further fiber loss reduction.
Photonics, optical fibers
University of Southampton
Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Sandoghchi, Seyed Reza
15499707-d3f2-42f1-90e2-cbe260462487
Wheeler, Natalie
0fd34178-a77b-4c71-a3a6-86a1f634f1a0
Numkam Fokoua, Eric
6d9f7e50-dc3b-440a-a0b9-f4a08dd02ccd
Sandoghchi, Seyed Reza
15499707-d3f2-42f1-90e2-cbe260462487
Wheeler, Natalie
0fd34178-a77b-4c71-a3a6-86a1f634f1a0

Numkam Fokoua, Eric, Sandoghchi, Seyed Reza and Wheeler, Natalie (2015) Accurate Modelling of Fabricated Hollow-Core Photonic Bandgap Fibers. University of Southampton [Dataset]

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Abstract

We report a novel approach to reconstruct the cross-sectional profile of fabricated hollow-core photonic bandgap fibers from scanning electron microscope images. Finite element simulations on the reconstructed geometries achieve a remarkable match with the measured transmission window, surface mode position and attenuation. The agreement between estimated scattering loss from surface roughness and measured loss values indicates that structural distortions, in particular the uneven distribution of glass across the thin silica struts on the core boundary, have a strong impact on the loss. This provides insight into the differences between idealized models and fabricated fibers, which could be key to further fiber loss reduction.

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More information

Published date: 2015
Keywords: Photonics, optical fibers
Organisations: ORC Research, Optoelectronics Research Centre

Identifiers

Local EPrints ID: 377919
URI: https://eprints.soton.ac.uk/id/eprint/377919
PURE UUID: a8dafc30-4d55-4c65-b10d-b3797573b712
ORCID for Eric Numkam Fokoua: ORCID iD orcid.org/0000-0003-0873-911X
ORCID for Seyed Reza Sandoghchi: ORCID iD orcid.org/0000-0003-2196-3167
ORCID for Natalie Wheeler: ORCID iD orcid.org/0000-0002-1265-9510

Catalogue record

Date deposited: 10 Sep 2015 14:27
Last modified: 06 Mar 2019 01:30

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Contributors

Creator: Natalie Wheeler ORCID iD

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