Draka Comteq B.v.

Adrian Amezeua-Correa

Denis Molin

Frans Gooijer

Pieter Matthijsse

Gertjan Krabshuis

Elise Regnier

A multi-mode optical waveguide fiber including a central core region having an outer radius surrounded by an inner cladding region having an outer radius, the inner cladding region having a lower index of refraction than the central core region, wherein both the central core and inner cladding regions are doped with fluorine, wherein the refractive index profile of the central core region is of the gradient index type and the central core region in the range of r&#x3b5;[0-r] comprises germanium at a maximum concentration within the range of 0.5 percent by weight to 4.0 percent by weight taken at a given radius, wherein said fiber has an Overfilled Modal Bandwidth &#x3e;500 MHz&#xb7;km at a wavelength of 850 nm and 1300 nm, according to IEC 60793-2-10.

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Davidson, NC, United States of America

Adrian Amezeua-Correa