OPTICAL FIBER CABLE, MANUFACTURING METHOD THEREOF, METHOD OF STRANDING OPTICAL FIBER RIBBON IN OPTICAL FIBER CABLE, AND LAMINATE OF OPTICAL FIBER RIBBON IN OPTICAL FIBER CABLE

摘要

PROBLEM TO BE SOLVED: To suppress an increase in light transmission loss which is caused by a laminate position occurring due to cable bend, without reducing a space factor in an optical fiber cable neither increasing the internal diameter of the cable. SOLUTION: In an optical fiber cable 1, a laminate 7 stored in a cable core 5 is constituted by laminating a plurality of optical fiber ribbons 3 in a first direction and is constituted by stranding the plurality of optical fiber ribbons 3 constituted of a center laminate part 17 and both side laminate parts 19A and 19B. In the center laminate part 17, several optical fiber ribbons 3 in the center part in the first direction are laminated in the first direction in parallel with a second direction orthogonal to the first direction. The both side laminate parts 19A and 19B are constituted by laminating other optical fiber ribbons 3 in the first direction on both sides of the center laminate 17 in the first direction. A cable sheath 21 is provided on an outer peripheral part of the cable core so as to cover the cable core 5. COPYRIGHT: (C)2005,JPO&NCIPI