Patent ID: 8452146
Filing Date: 2013-05-28
Classification: C03C,G02B

Abstract:
1. A process for manufacturing an optical fiber comprising: drawing an optical waveguide from a glass preform; applying a layer of a first coating material onto the optical waveguide; curing the first coating layer material to obtain a first coating layer; applying a layer of a second coating material onto the first coating layer; applying a layer of colored coating material onto the layer of second coating material; and curing the second coating material and the colored coating material in a single step, wherein the second coating material is cured to a percentage equal to or higher than 90% and lower than 96% to obtain a second coating layer superposed on the first coating layer and a colored coating layer superposed on the second coating layer, the obtained second coating layer having an elastic modulus higher than that of the first coating layer and lower than that of the colored coating layer.