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Index profile determination in graded index fibres

Index profile determination in graded index fibres
Index profile determination in graded index fibres
Current interest in optical fibres having near parabolic refractive index distribution has emphasised the need for an accurate and simple means of determining the index profile, both in the laboratory and in production. Theoretical considerations show that an optimum profile exists for which the transit time of all modes is very nearly equalised, and a considerable increase in bandwidth results. The index variation however must be controlled with great precision, and although it seems possible to achieve this by means of the chemical vapour deposition technique, a method has yet to be found by which the profile may be quickly and accurately measured. Existing methods are either time consuming in that they require tedious preparation of the fibre samples, or do not possess sufficient accuracy to be of practical value.
Payne, D.N.
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Sladen, F.M.E.
d444502d-d1bd-4e85-9743-13568c170277
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
Adams, M.J.
4a9df701-bc4d-492e-a54e-de6d526d3083

Payne, D.N., Sladen, F.M.E. and Adams, M.J. (1975) Index profile determination in graded index fibres. First European Conference on Optical Communication (ECOC), London, United Kingdom.

Record type: Conference or Workshop Item (Paper)

Abstract

Current interest in optical fibres having near parabolic refractive index distribution has emphasised the need for an accurate and simple means of determining the index profile, both in the laboratory and in production. Theoretical considerations show that an optimum profile exists for which the transit time of all modes is very nearly equalised, and a considerable increase in bandwidth results. The index variation however must be controlled with great precision, and although it seems possible to achieve this by means of the chemical vapour deposition technique, a method has yet to be found by which the profile may be quickly and accurately measured. Existing methods are either time consuming in that they require tedious preparation of the fibre samples, or do not possess sufficient accuracy to be of practical value.

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Published date: 1975
Venue - Dates: First European Conference on Optical Communication (ECOC), London, United Kingdom, 1975-01-01

Identifiers

Local EPrints ID: 77736
URI: http://eprints.soton.ac.uk/id/eprint/77736
PURE UUID: 386b12bd-d3ca-4c28-9b65-f58e042d29cd

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Date deposited: 11 Mar 2010
Last modified: 29 Jan 2020 13:37

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