Tapers in single-mode optical fibre by controlled core diffusion

Tapers in single-mode optical fibre by controlled core diffusion

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A method of obtaining tapered single mode fibre cores by controlled thermal diffusion of the dopant is described. The mechanical fibre dimensions are maintained during this process. Extended tapers have been produced, which show an increased tolerance to longitudinal and transverse offsets. Such tapers will prove useful for a range of optical fibre components.


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