COLORED OPTICAL FIBER AND OPTICAL FIBER RIBBON ASSEMBLY CONTAINING SAID FIBER

摘要

Optical fiber ribbon comprising an optical fiber having a radiation curable internal coating and a radiation curable colored coating disposed to surroun d said internal coating, and a radiation curable matrix material surrounding o ne or more of said optical fibers to form a ribbon, in which : said colored coating has a degree of adhesion to the inner coating which is higher than t he degree of adhesion to the matrix material; and said optical fiber in said optical fiber ribbon shows, upon aging to the ribbon for at least two weeks in water at 60~C, an increase in the attenuation of the transmitted signal at 1550 nm of less than 0.05 db/km with respect to the attenuation of the assembled optical fiber measured before aging.