Patent ID: 6904210

Claim:
A fiber optic cable, comprising: an outer jacket; and an optical fiber ribbon disposed within the outer jacket, wherein the ribbon comprises more than one optical fiber configured to transmit in at least one of the C-band, L-band and U-band of wavelengths, and at least two distinct matrix coatings disposed on the optical fibers, the coatings having distinct characteristics, wherein the two matrix coatings comprise an undercoat and an overcoat, wherein the undercoat has a glass transition temperature that ranges from approximately −60° C. to approximately 120° C., and the overcoat has a glass transition temperature that ranges from approximately 90° C. to approximately 150° C., wherein the undercoat coats the individual optical fibers and fills the interstices therebetween, and the overcoat is disposed on and surrounds the undercoat, thereby forming the optical fiber ribbon, and wherein the undercoat and the overcoat each forms a coverage over the optical fibers, and wherein the ratio of the coverage of the optical fibers by the undercoat to the coverage by the overcoat ranges from approximately 0.5 to approximately 2.0.