Patent ID: 11860438
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. An intermittently coupled-type optical fiber ribbon, comprising:
a plurality of optical fibers arranged in parallel in a direction orthogonal to a longitudinal direction of the plurality of optical fibers; and
a coupling resin coating all of the plurality of optical fibers, wherein
slits are formed by intermittently inserting a cleaving blade into the coupling resin between some adjacent optical fibers of the plurality of optical fibers,
an outer diameter of each of the optical fibers is 220 μm or less,
a distance between the optical fibers into which the cleaving blade is inserted among the adjacent optical fibers is 10 μm or more and 100 μm or less, and
a gel fraction of the coupling resin is 90% or more.