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Determination of optical fibre refractive index profiles by a near-field scanning technique

Sladen, F.M.E., Payne, D.N. and Adams, M.J. (1976) Determination of optical fibre refractive index profiles by a near-field scanning technique Applied Physics Letters, 28, (5), pp. 255-258. (doi:10.1063/1.88857).

Record type: Article

Abstract

A simple and rapid method is described for determining the refractive index profile of an optical fiber by observation of the near-field intensity distribution. It is shown that in many cases the presence of tunnelling leaky modes is unavoidable and that these cause a length-dependent error in the measurement. A correction factor is developed which may be applied to the measured intensity profile once the fiber length, core diameter, and numerical aperture are known. Examples are given of measurements made on both step and graded-index fibers.

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Published date: 1976

Identifiers

Local EPrints ID: 78771
URI: http://eprints.soton.ac.uk/id/eprint/78771
ISSN: 0003-6951
PURE UUID: f590c639-b417-4ab4-89f8-bdb329897387

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:22

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Contributors

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

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