LOOSE TUBE, LOOSE TUBE TYPE OPTICAL FIBER CABLE, SINGLE FIBER ISOLATION METHOD FOR LOOSE TUBE OPTICAL FIBER TAPE, LOOSE TUBE MANUFACTURING METHOD, AND METHOD FOR GATHERING TOGETHER A PLURALITY OF OPTICAL FIBERS

摘要

[Problem] To reduce the diameter of a loose tube having optical fiber tape. [Solution] The present invention is a loose tube provided with a plurality of optical fibers and a tube accommodating the plurality of optical fibers together with filler material. The plurality of optical fibers are configured from an intermittent fixed type optical fiber tape in which link portions linking adjacent optical fibers are intermittently disposed, wherein the intermittent fixed type optical fiber tape is disposed in the tube with the plurality of optical fibers, constituting the intermittent fixed type optical fiber tape, bundled together.