Patent ID: 8094985
Filing Date: 2012-01-10
Classification: G02B,H04J

Abstract:
1. A multi-core holey fiber comprising: a plurality of cores arranged separately from each other; and a cladding surrounding the plurality of cores wherein the cladding has a plurality of holes arranged in a triangular lattice shape to create hole layers around each of the plurality of cores; wherein a ratio d/Λ is not more than 0.5, where Λ [μm] is lattice constant of the triangular lattice, d [μm] is diameter of each of the holes; a distance between adjacent cores is equivalent to not less than six hole layers; the core arranged farthest from the center of the multi-core holey fiber is surrounded by not less than three hole layers; and the sum of coupling coefficients between the adjacent cores is not more than 1.6×10