Abstract: To provide an optical fiber ribbon whereby a plastic optical fiber can be used in such a state that the tensile strength is good. A plastic optical fiber ribbon 10 characterized in that at least one plastic optical fiber 1 and at least one plastic wire 2 having a Young's modulus of at least 3,000 MPa are arranged so that their central axes are parallel to each other in the same plane, and integrated by a collective coating 3.

Abstract: A plastic optical fiber ribbon excellent in efficiency for positioning to V grooves is provided. The ribbon contains plural plastic optical fibers integrated by a collective coating and arranged so that their center axes are parallel to one another in the same plane. At least one outer surface in the thickness direction of the ribbon has a mountain-valley shape following the outer surfaces of the plastic optical fibers, in which an inclined portion is present where the thickness of the collective coating gradually increases in a direction from the peak toward the valley of the mountain, and in a cross section perpendicular to the longitudinal direction of the ribbon, a central angle of the sector formed by connecting an arc from the apex of the mountain to the starting point of the inclined portion and a center of the plastic optical fiber is from 30 to 80°.

Abstract: To provide a plastic optical fiber ribbon excellent in efficiency for positioning to V grooves. A plastic optical fiber ribbon 10 wherein a plurality of plastic optical fibers 1 are arranged so that their center axes are parallel to one another in the same plane and are integrated by a collective coating 2, wherein at least one outer surface in the thickness direction of the plastic optical fiber ribbon 10 has a mountain-valley shape following the outer surfaces of the plastic optical fibers 1, in which an inclined portion is present where the thickness of the collective coating 2 gradually increases in a direction from the peak 2a of the mountain toward the valley 2b, and in a cross section perpendicular to the longitudinal direction of the plastic optical fiber ribbon 10, a central angle ? of the sector formed by connecting an arc from the apex P of the mountain to the starting point Q of the inclined portion and a center of the plastic optical fiber 1 is from 30 to 80°.

Abstract: To provide an optical fiber ribbon whereby a plastic optical fiber can be used in such a state that the tensile strength is good. A plastic optical fiber ribbon 10 characterized in that at least one plastic optical fiber 1 and at least one plastic wire 2 having a Young's modulus of at least 3,000 MPa are arranged so that their central axes are parallel to each other in the same plane, and integrated by a collective coating 3.