Determination of core diameter and refractive-index difference of single-mode fibres by observation of the far-field pattern
Determination of core diameter and refractive-index difference of single-mode fibres by observation of the far-field pattern
A method is described for determining unambiguously, from the far-field pattern of single-mode fibres, the core diameter and the refractive-index difference between core and cladding. It involves measurements only of the half-power width of the main lobe and the width of the first minimum. Universal curves are presented that can be used with single-mode fibres or any fibre operating in the single-mode regime. Independent determinations of core diameter over the range 4-8µm by an etching technique are in excellent agreement with those obtained from the far-field pattern.
13-17
Gambling, W.A.
70d15b3d-eaf7-44ed-9120-7ae47ba68324
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Matsumura, H.
1e8b76d6-6100-43c0-b411-6f9fe68671eb
Dyott, R.B.
fab34a46-cd37-463e-9796-6f6293c422c0
September 1976
Gambling, W.A.
70d15b3d-eaf7-44ed-9120-7ae47ba68324
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Matsumura, H.
1e8b76d6-6100-43c0-b411-6f9fe68671eb
Dyott, R.B.
fab34a46-cd37-463e-9796-6f6293c422c0
Gambling, W.A., Payne, D.N., Matsumura, H. and Dyott, R.B.
(1976)
Determination of core diameter and refractive-index difference of single-mode fibres by observation of the far-field pattern.
Microwaves Optics and Acoustics, 1 (1), .
(doi:10.1049/ij-moa:19760002).
Abstract
A method is described for determining unambiguously, from the far-field pattern of single-mode fibres, the core diameter and the refractive-index difference between core and cladding. It involves measurements only of the half-power width of the main lobe and the width of the first minimum. Universal curves are presented that can be used with single-mode fibres or any fibre operating in the single-mode regime. Independent determinations of core diameter over the range 4-8µm by an etching technique are in excellent agreement with those obtained from the far-field pattern.
More information
Published date: September 1976
Identifiers
Local EPrints ID: 78759
URI: http://eprints.soton.ac.uk/id/eprint/78759
ISSN: 0308-6976
PURE UUID: b36da751-0c22-4c03-b13f-3f85669d84dc
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:22
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Contributors
Author:
W.A. Gambling
Author:
H. Matsumura
Author:
R.B. Dyott
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