Draka Fibre Technology B.v.

Draka Comteq B.v.

Peter Johannes Theodorus Pleunis

Antonius Henricus Elisabeth Breuls

Eric Aloysius Kuijpers

Myrna Boon

Martinus Ludovicus Petrus Wilhelmus Van Den Heuvel

An optical fibre for propagating a signal in different modes, including a longitudinal length 'a' of a change in the tension buildup in the optical fibre and a longitudinal distance 'L' between two such changes are in accordance with the equation, a&#x3c;=0.5 L, for at least part of the optical fibre.

Method of manufacturing an optical fibre having variations in the refractive index

A method of manufacturing an optical fibre, which method comprises the steps of:

Method for manufacturing an optical fibre having variations in the refractive index

The present invention relates to a method of manufacturing an optical fibre suitable for high transmission rates, which method comprises: i) supplying one or more glass forming precursors, and possibly a dopant, to a quartz substrate tube, ii) forming a plasma in the quartz substrate tube for the purpose of bringing about a reaction mixture so as to form glass layers, which may or may not be doped, on the interior of the substrate tube, iii) collapsing the substrate tube obtained in step ii) into a perform while heating, and iv) drawing an optical fibre from the perform while heating. The present invention furthermore relates to an optical fibre suitable for high transmission rates.

Method of manufacturing an optical fibre suitable for high transmission rates

The present invention relates to a multimode fiber having a refractive index profile, wherein the area surrounding the center of the fiber has a refractive index profile such that the responses of a DMD (Differential Mode Delay) measurement carried out on a fiber having a length of at least 300 m are obtained without any pulse splitting occurring in the center of the fiber.

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Weert, Netherlands

Peter Johannes Theodorus Pleunis