Low loss fluoride fibre by reduced pressure casting
Low loss fluoride fibre by reduced pressure casting
- Author(s): S.F. Carter ; M.W. Moore ; D. Szebesta ; J.R. Williams ; D. Ranson ; P.W. France
- DOI: 10.1049/el:19901361
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- Author(s): S.F. Carter 1 ; M.W. Moore 1 ; D. Szebesta 1 ; J.R. Williams 1 ; D. Ranson 1 ; P.W. France 1
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View affiliations
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Affiliations:
1: British Telecom Research Laboratories, Ipswich, UK
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Affiliations:
1: British Telecom Research Laboratories, Ipswich, UK
- Source:
Volume 26, Issue 25,
6 December 1990,
p.
2115 – 2117
DOI: 10.1049/el:19901361 , Print ISSN 0013-5194, Online ISSN 1350-911X
A major cause of loss in fluoride fibres has been extrinsic scatter from bubbles trapped in preforms during casting. A new reduced pressure casting (RPC) technique has been developed to eliminate bubbles, and the minimum fibre loss has been reduced to 0.65 ± 0.25 dB/km at 2.59 μm, measured over a 110 m length of fibre.
Inspec keywords: optical losses; zirconium compounds; casting; optical workshop techniques; optical fibres; aluminium compounds; fluoride glasses; lanthanum compounds; barium compounds; bubbles in solids; sodium compounds; optical glass
Other keywords:
Subjects: Optical fibre fabrication, cladding, splicing, joining; Fibre optics; Optical propagation, dispersion and attenuation in fibres; Optical fabrication, surface grinding; Optical glass; Optical materials
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