Alcatel

Jurgen Berndt

Michael Hoffart

Norbert Nowack

An apparatus for drawing a fiber ( ), particularly an optical glass fiber, from a heated preform ( ), has a tubular heating element ( ), which encloses preform ( ) at least partly in its longitudinal direction, and an induction coil ( ) surrounding tubular heating element ( ) at a radial distance. Along an inside surface ( ) of the tubular heating element ( ) a protective tube ( ) is provided, which surrounds fiber ( ) and preform ( ) at a radial distance. Protective tube ( ) reliably prevents burning off of the heating element and thus a deterioration of the properties of the fiber ( ).

Optical fiber draw furnace having a SiC or Silicon Nitride tube

In an apparatus ( ) for coating an optical fiber ( ) with an UV curable polymer coating comprising a coating chamber ( ) with an intake nozzle ( ) and an outlet nozzle ( ) for applying the coating to the optical fiber ( ) as well as an UV source arranged behind the outlet nozzle, the end face of outlet nozzle ( ) facing the UV source is coated with a material ( ) that is antiadhesive with respect to the coating material.

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Viersen, Germany

Jurgen Berndt