University of Southampton

Rowland Sammut

Liang C Dong

David John Richardson

Neil Gregory Raphael Broderick

Herman Leonard Offerhaus

An optical fibre has a cladding layer surrounding a core, the cladding layer comprising at least a first, relatively inner generally cylindrical region, a third, relatively outer generally cylindrical region, and a second region disposed between the first and third regions, the second region having a higher refractive index than the first and third regions; and the peak difference in refractive index between the first cladding region and the core being less than about 0.0030.

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Weetangera, Australia

Rowland Sammut