Method for making an optical conductor
AssigneeAlcatel
InventorsMichaël Yang, Christopher McNutt, David Benzel
Life of this patent
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Abstract
The invention relates to a method of manufacturing an optical conductor, in which method, a mixture of a resin and of a photo-initiator is exposed to UV radiation in order to form, by cross-linking, the covering of the optical conductor. The cross-linking takes place by causing the conductor (10) to advance past a UV source at a speed of at least 10 meters per minute (m/min). The invention provides a first source (18) which emits monochromatic UV radiation to achieve cross-linking mainly on the surface, and a second UV source which emits UV radiation of broad spectrum containing wavelengths that are longer than the wavelength of the monochromatic source to achieve cross-linking mainly in depth.
Claims11
A method of manufacturing an optical conductor or a ribbon of optical conductors, said method comprising the step of exposing a mixture of a resin and of a photo-initiator to ultraviolet (UV) radiation in order to form, by cross linking, a covering of the optical conductor or a material for assembling together a plurality of conductors, cross-linking taking place by causing the conductor or bundle of conductors to advance past an ultraviolet source at a speed of at least 10 meters per minute (m/min);
- wherein said method comprises exposing said mixture to UV radiation from a first source emitting substantially monochromatic UV radiation to achieve cross-linking mainly on the surface, and then exposing said mixture to UV radiation from a second UV source emitting UV radiation of broad spectrum containing wavelengths that are longer than the wavelength of the monochromatic source to achieve cross-linking mainly in depth.
Dependencies are inferred from the claim text.