Photonic crystal fiber coupler and fabricating method thereof

摘要

Disclosed is a photonic crystal-fiber coupler that can distribute light while maintaining the inherent optical properties of photonic crystal fibers. The inventive photonic crystal-fiber coupler comprises at least two photonic crystal fibers and at least one coupling region longitudinally formed along the part of each photonic crystal fiber. Each photonic crystal fiber has a core portion and a cladding portion and includes a plurality of longitudinal holes formed in such a manner to surround the core portion.