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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 in photonic crystal structures such as hollow core fibres and homothetically scaled preforms (canes) reveals longitudinal properties of the structure normally requiring a long fibre length and its end-face access. By tuning the excitation to the maxima of observed morphology resonances, initiating axially expending whispering gallery modes in the fibre cladding and in its microstructure, characteristic spectral windows resembling ones at the fibre longitudinal transmission are observed. The results open up the possibility of detached characterization 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 in photonic crystal structures such as hollow core fibres and homothetically scaled preforms (canes) reveals longitudinal properties of the structure normally requiring a long fibre length and its end-face access. By tuning the excitation to the maxima of observed morphology resonances, initiating axially expending whispering gallery modes in the fibre cladding and in its microstructure, characteristic spectral windows resembling ones at the fibre longitudinal transmission are observed. The results open up the possibility of detached characterization 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

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: 27 Apr 2022 05:37

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Author: Michael Bukshtab

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