Optical fiber, optical fiber ribbon, and method of manufacturing optical fiber

Abstract

An optical fiber includes a fiber, a primary resin layer and a second resin layer. The fiber includes at least one core and a cladding covering the core, and extends in a longitudinal direction. The primary resin layer covers an outer circumference of the fiber. The secondary resin layer covers an outer circumference of the primary resin layer. The fiber has an orientation with respect to a rotation direction about the longitudinal direction. The primary resin layer includes, in the longitudinal direction, a plurality of first regions each having a first Young's modulus and a plurality of second regions each having a second Young's modulus higher than the first Young's modulus.

Dependencies are inferred from the claim text.