| 摘要 |
PROBLEM TO BE SOLVED: To manufacture an optical fiber array reduced in optical fiber array pitch by a simple method. SOLUTION: This optical fiber array is constituted by making the V-groove side front end face of a substrate 1 having an optical fiber stage 1a and coated optical fiber ribbon stage 1b arrayed with a plurality of the V-grooves 1c and the front end faces of the optical fibers 4a, 4b exposed by removing coatings at the terminals of two sheets of coated optical fiber ribbons 3a, 3b flush with each other, alternately inserting the front ends of the optical fibers of two sheets of the coated optical fiber ribbon into the V-grooves and pressing and fixing the surfaces of the optical fibers with a cap member 2. In such a case, the portions having the coatings of two sheets of the coated optical fiber ribbon are superposed on each other in the state of offsetting in the transverse direction of the ribbons on at least the coated optical fiber ribbon stage 1b of the substrate and near the same. A spacer 5 for preventing the flow of the adhesives is inserted between the coated optical fiber ribbons 3a and 3b of part in the longitudinal direction of two sheets of the coated optical fiber ribbons superposed on each other. The optical fibers and the coated optical fiber ribbon are fixed and protected by adhesives 6 from the edges of the cap member 2 to the portions of the coatings of the coated optical fiber ribbons.
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