Draka Comteq B.v.

Gerard Kuyt

Frans Gooijer

Pieter Matthijsse

Ivo Flammer

Elise Regnier

Marianne Bigot-Astruc

Gertjan Krabshuis

Franciscus Johannes Achten

Gilles Melin

Stephanus Gerardus Fransiscus Geerings

Adrian Amezcua-Correa

A multimode optical fiber includes a central core and an outer cladding (e.g., an outer optical cladding). Typically, the optical fiber's central core is a depressed, central core having an alpha-index profile (i.e., a graded-index profile), an outer radius r, and a maximum refractive index difference &#x394;nwith respect to the outer cladding. The central core's alpha-index profile has a minimum refractive index at the central core's outer radius rthat corresponds to a refractive index difference &#x394;nwith respect to the outer cladding. Exemplary optical-fiber embodiments may include an inner cladding having an outer radius rand a width w. Exemplary optical-fiber embodiments may include a buried trench having a width wand an outer radius r. Furthermore, exemplary optical-fiber embodiments may include an intermediate cladding having an outer radius rand a width w.

High-bandwidth, radiation-resistant multimode optical fiber

A single mode optical transmission fiber comprises a depressed core having at least 0.41 weight percent fluorine and an index difference (|&#x394;n|) with pure silica greater than 1.5&#xd7;10, a depressed cladding having at least 1.2 weight percent fluorine and an index difference (|&#x394;n|) with pure silica greater than 4.5&#xd7;10and an index difference (|&#x394;n|&#x2212;|&#x394;n|) with the depressed core greater than or equal to 3&#xd7;10.

Fluorine-doped optical fiber

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Boxtel, Netherlands

Gerard Kuyt