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.
4f592b24-707f-456e-b2c6-8a6f750e296d
Sladen, F.M.E.
d444502d-d1bd-4e85-9743-13568c170277
Adams, M.J.
4a9df701-bc4d-492e-a54e-de6d526d3083
1975
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.
More information
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: 13 Mar 2024 23:59
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Contributors
Author:
F.M.E. Sladen
Author:
M.J. Adams
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