Ultraviolet curing resin composition, coated optical fiber, colored optical fiber, optical fiber ribbon, method for manufacturing coated optical fiber, method for manufacturing colored optical fiber, and method for manufacturing optical fiber ribbon

A coated optical fiber comprising:

• a bare optical fiber;
• a primary layer that is formed of a first ultraviolet curing resin composition and covers the bare optical fiber;
• and
• a secondary layer that is formed of a second ultraviolet curing resin composition and covers the primary layer,
• wherein the first ultraviolet curing resin composition includes a silane coupling agent that reversibly bonds the bare optical fiber and the primary layer.

A method for manufacturing a coated optical fiber comprising:

• a step of drawing a bare optical fiber from an optical fiber preform;
• a step of forming a primary layer by applying a first ultraviolet curing resin composition around the bare optical fiber;
• and
• a step of forming a secondary layer by applying a second ultraviolet curing resin composition around the primary layer;
• and
• a step of irradiating ultraviolet light to cure the first ultraviolet curing resin composition and the second ultraviolet curing resin composition,
• wherein the first ultraviolet curing resin composition includes a silane coupling agent that reversibly bonds the bare optical fiber and the primary layer.