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Parallel-beam excitation method for estimating refractive-index profiles in optical fibres

Parallel-beam excitation method for estimating refractive-index profiles in optical fibres
Parallel-beam excitation method for estimating refractive-index profiles in optical fibres
A theoretical model is developed that demonstrates the presence of a ring in the far-field pattern when a graded-index fibre is excited by a collimated beam, incident at a given radius from the core centre. The angular position of this ring can be used to obtain an estimate of the fibre refractive-index profile. provided a correction for the finite beam spot size is applied.
0013-5194
811-812
Ankiewicz, A.
d962a99e-d684-4cd4-a135-29cc5c605d61
Adams, M.J.
4a9df701-bc4d-492e-a54e-de6d526d3083
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Sladen, F.M.E.
d444502d-d1bd-4e85-9743-13568c170277
Ankiewicz, A.
d962a99e-d684-4cd4-a135-29cc5c605d61
Adams, M.J.
4a9df701-bc4d-492e-a54e-de6d526d3083
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Sladen, F.M.E.
d444502d-d1bd-4e85-9743-13568c170277

Ankiewicz, A., Adams, M.J., Payne, D.N. and Sladen, F.M.E. (1978) Parallel-beam excitation method for estimating refractive-index profiles in optical fibres. Electronics Letters, 14 (25), 811-812. (doi:10.1049/el:19780547).

Record type: Article

Abstract

A theoretical model is developed that demonstrates the presence of a ring in the far-field pattern when a graded-index fibre is excited by a collimated beam, incident at a given radius from the core centre. The angular position of this ring can be used to obtain an estimate of the fibre refractive-index profile. provided a correction for the finite beam spot size is applied.

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Published date: 1978
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Identifiers

Local EPrints ID: 78699
URI: http://eprints.soton.ac.uk/id/eprint/78699
DOI: doi:10.1049/el:19780547
ISSN: 0013-5194
PURE UUID: dc06ae0e-a821-4f25-ac0c-de4a1337d746

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:20

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Contributors

Author: A. Ankiewicz
Author: M.J. Adams
Author: D.N. Payne
Author: F.M.E. Sladen

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