Patent ID: 9739965
Date: 2017-08-22
CPC Classifications: G02B

Claim:
1. An optical fiber ribbon comprising three or more optical fibers arranged in parallel and connecting portions connecting the respective adjacent two optical fibers, the connecting portions being formed intermittently in each of a ribbon longitudinal direction and a ribbon width direction, wherein split strength of the connecting portions is in a range from 1.50 gf to 21.0 gf, wherein the connecting portions each is formed by filling a gap provided between the adjacent two optical fibers so as to adhere to each of the adjacent two optical fibers, the adjacent optical fibers being not in contact with each other, and wherein the connecting portions each have a thickness in cross section in the ribbon longitudinal direction perpendicular to the ribbon width direction that gradually increases in an arc from one side towards a middle, is thickest in the middle and gradually decreases in an arc towards another side.