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Measurement of radiation loss in curved single-mode fibres

Measurement of radiation loss in curved single-mode fibres
Measurement of radiation loss in curved single-mode fibres
Experimental and theoretical studies on the radiation loss from curved single-mode fibres show that it includes contributions due to transition loss at discontinuities between straight and curved sections of fibre, as well as the bend loss due to uniform curvature. These two contributions have been measured separately, and there is good agreement with the theoretical predictions. The transition loss at large bend radii can be considerably greater than the uniform bend loss. It is found that the transition loss incurred by a change of fibre curvature from R to -R is about 8 times bigger than that from R to infinity. The loss due to fibre undulation has also been measured and in this case the results can be completely explained using only the pure bending loss theory.
0308-6976
134-130
Gambling, W.A.
70d15b3d-eaf7-44ed-9120-7ae47ba68324
Matsumura, H.
1e8b76d6-6100-43c0-b411-6f9fe68671eb
Ragdale, C.M.
fd1dac1c-ae44-4f32-8d55-366799ddef3c
Sammut, R.A.
ae138cbb-77ae-4c40-947e-25fd19f1e749
Gambling, W.A.
70d15b3d-eaf7-44ed-9120-7ae47ba68324
Matsumura, H.
1e8b76d6-6100-43c0-b411-6f9fe68671eb
Ragdale, C.M.
fd1dac1c-ae44-4f32-8d55-366799ddef3c
Sammut, R.A.
ae138cbb-77ae-4c40-947e-25fd19f1e749

Gambling, W.A., Matsumura, H., Ragdale, C.M. and Sammut, R.A. (1978) Measurement of radiation loss in curved single-mode fibres. IEE Journal on Microwaves, Optics and Acoustics, 2 (4), 134-130. (doi:10.1049/ij-moa.1978.0030).

Record type: Article

Abstract

Experimental and theoretical studies on the radiation loss from curved single-mode fibres show that it includes contributions due to transition loss at discontinuities between straight and curved sections of fibre, as well as the bend loss due to uniform curvature. These two contributions have been measured separately, and there is good agreement with the theoretical predictions. The transition loss at large bend radii can be considerably greater than the uniform bend loss. It is found that the transition loss incurred by a change of fibre curvature from R to -R is about 8 times bigger than that from R to infinity. The loss due to fibre undulation has also been measured and in this case the results can be completely explained using only the pure bending loss theory.

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Published date: July 1978

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Local EPrints ID: 78711
URI: http://eprints.soton.ac.uk/id/eprint/78711
ISSN: 0308-6976
PURE UUID: 0cc9dc2c-ed9a-4bb1-ad6b-c707021de7f3

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:21

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Contributors

Author: W.A. Gambling
Author: H. Matsumura
Author: C.M. Ragdale
Author: R.A. Sammut

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