Optical fiber cable
AssigneesSumitomo Electric Industries, Ltd., NTT, Inc.
InventorsYutaka Hashimoto, Fumiaki Sato, Masashi Kikuchi, Soichi Ishikawa, Akira Sakurai, Yusuke Yamada, Sadaharu Homan
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AssigneesSumitomo Electric Industries, Ltd., NTT, Inc.
InventorsYutaka Hashimoto, Fumiaki Sato, Masashi Kikuchi, Soichi Ishikawa, Akira Sakurai, Yusuke Yamada, Sadaharu Homan
Estimating the term…
A core portion of each of optical fibers of an optical fiber cable is made of pure silica glass, an effective cross-sectional area of the core portion at a wavelength of 1550 nm is 110 μm2 or more and 150 μm2 or less. The optical fibers include an intermittent connection portion in which a connection portion to which an adhesive resin is applied and a non-connection portion to which the adhesive resin is not applied are alternately provided between adjacent optical fibers. The optical fiber ribbon has a ratio of a total adhesion length to which the adhesive resin is applied to a total length between all the optical fibers of 40% or more per a unit length of the optical fiber ribbon, and an occupancy ratio of the optical fiber ribbon to a cross-sectional area of the internal space is 30% or more and 40% or less.
An optical fiber cable in which an optical fiber ribbon formed by arranging a plurality of optical fibers in parallel is mounted in an internal space,
Dependencies are inferred from the claim text.