OPTICAL CABLE AND OPTICAL-CABLE MANUFACTURING METHOD

An optical cable of the present disclosure includes a plurality of optical fiber units. The optical fiber unit has a plurality of intermittently-coupled optical fiber ribbons. In a cross section perpendicular to a longitudinal direction, at least one of the optical fiber units is such that a length of a vector GU is shorter than a largest length of vectors MG of the plurality of the optical fiber ribbons, where the vector MG is a vector starting from a midpoint M and ending at a center of gravity G, M is the midpoint between optical fibers at both ends of each optical fiber ribbon, G is the center of gravity of the optical fiber ribbon, and the vector GU is a resultant vector of the vectors MG of the respective optical fiber ribbons.