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On feasibility of longitudinal characterisation of photonic structures via transverse excitation of whispering gallery modes

On feasibility of longitudinal characterisation of photonic structures via transverse excitation of whispering gallery modes
On feasibility of longitudinal characterisation of photonic structures via transverse excitation of whispering gallery modes

Remote side excitation of whispering gallery modes (WGMs) in a photonic crystal fibre reveals longitudinal properties of its intra structure usually requiring a long propagation length and endface access. By tuning the excitation to maxima of observed morphology resonances, initiating axially expanding WGMs in the fibre cladding and in its microstructure, characteristic spectral windows resembling ones at the fibre longitudinal transmission are observed. This outcome opens up possibilities of remote characterisation of rotationally- symmetric photonic structures in situ and in locations only assessable via side excitation using external light beams.

0013-5194
150-153
Bukshtab, Michael
d5393787-5bd2-4b5d-a22f-d18ed3d9052e
Bukshtab, Michael
d5393787-5bd2-4b5d-a22f-d18ed3d9052e

Bukshtab, Michael (2020) On feasibility of longitudinal characterisation of photonic structures via transverse excitation of whispering gallery modes. Electronics Letters, 56 (3), 150-153. (doi:10.1049/el.2019.2637).

Record type: Article

Abstract

Remote side excitation of whispering gallery modes (WGMs) in a photonic crystal fibre reveals longitudinal properties of its intra structure usually requiring a long propagation length and endface access. By tuning the excitation to maxima of observed morphology resonances, initiating axially expanding WGMs in the fibre cladding and in its microstructure, characteristic spectral windows resembling ones at the fibre longitudinal transmission are observed. This outcome opens up possibilities of remote characterisation of rotationally- symmetric photonic structures in situ and in locations only assessable via side excitation using external light beams.

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EL.2019.2637 - Accepted Manuscript
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In preparation date: 2019
Accepted/In Press date: 29 October 2019
e-pub ahead of print date: 14 November 2019
Published date: 6 February 2020
Additional Information: Funding Information: Acknowledgments: The author wishes to thank J.R. Hayes, P. Horak, T. Bradley, Y. Chen, H.C. Mulvad, R. Slavik, F. Poletti, D.J. Richardson for helpful suggestions and support, and also O. Aktas, G.T. Jasion, S.R. Sandoghchi, W. Zhu. Funding for this work is provided by the UK Engineering and Physical Sciences Research Council (EP/P030181/1). Publisher Copyright: © The Institution of Engineering and Technology 2020.

Identifiers

Local EPrints ID: 432383
URI: http://eprints.soton.ac.uk/id/eprint/432383
ISSN: 0013-5194
PURE UUID: 797edf23-5d2f-4810-af12-de0d14d5312f

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Date deposited: 12 Jul 2019 16:30
Last modified: 26 Jul 2022 17:14

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Author: Michael Bukshtab

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