Draka Comteq B.v.

Draka Fibre Technology B.v.

Martinus Johannes Marinus Jozeph Swarts

Mattheus Jacobus Nicolaas Van Stralen

Igor Milicevic

Dennis Robert Simons

Marco Korsten

The present invention relates to a device for manufacturing an optical preform by means of an internal vapour deposition process, said device comprising an energy source and a substrate tube, which substrate tube comprises a supply side for supplying glass-forming precursors and a discharge side for discharging constituents that have rot been deposited on the interior of the substrate tube, said energy source being movable along the length of the substrate tube between a point of reversal at the supply side and a point of reversal at the discharge side.

Device and method for manufacturing an optical preform

The present invention relates to a method of manufacturing a solid preform by moving a heat source parallel to the longitudinal axis of a substrate tube, whose inner surface is coated with one or more doped or undoped glass layers, so as to collapse the substrate tube into the solid preform in a number of passes, with an etchant being supplied to the interior of the substrate tube after a number of passes of the heat source.

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Veldhoven, Netherlands

Martinus Johannes Marinus Jozeph Swarts