Patent ID: 7139456

Claim:
An optical fiber wiring sheet comprising: at least one optical-fiber aligning section comprising a plurality of two-dimensionally aligned and wired coated optical fibers; and at least one optical-fiber branching part where at least one of the plurality of coated optical fibers branches off as a branching coated optical fiber from the remaining coated optical fibers, wherein the coated optical fibers have ends which constitute optical input/output ports, wherein the optical-fiber aligning section further comprises an optical-fiber rearranging part where the alignment order of the coated optical fibers changes wherein the optical-fiber aligning section having the optical-fiber rearranging part forms a loop, wherein the at least one optical-fiber branching part comprises at least one inside optical-fiber branching part and at least one outside optical-fiber branching part, wherein the ends of the branching coated optical fibers of the at least one inside optical-fiber branching part and the at least one outside optical-fiber branching part constitute the optical input/output ports disposed inside and outside the loop, respectively.