Optical fiber ribbon, connector-equipped optical fiber ribbon, optical fiber cable and optical fiber

An optical fiber ribbon comprising:

• an optical fiber that has a plurality of cores inside a cladding and that has a helical part in which positions of the plurality of cores in a longitudinal direction of the cladding helically change, a non-helical part in which the positions of the plurality of cores in the longitudinal direction do not helically change, and a coating layer that covers the cladding;
• and
• a fixing portion configured to fix the coating layers of a plurality of the optical fibers to each other such that the plurality of optical fibers are arranged in a direction intersecting the longitudinal direction, wherein
• the coating layer has a coating region in which a coating portion that coats the cladding is provided, and a coating-removed region that is provided at a position corresponding to the non-helical part and from which the coating portion is removed, and
• a first resin that adheres and fixes the cladding and the coating portion to each other is provided in the coating-removed region.