title: Dispersion properties of dual-core photonic-quasicrystal fiber.
abstract: We propose a photonic quasi-crystal fiber with a dual-core structure. The circular-like outer core caused by the quasi-periodic arrangement gives rise to an interesting dispersion property that is different from that of a photonic crystal fiber with a dual-core structure. The absolute value of negative dispersion for the dual-core photonic quasi-crystal fiber increases as the distance between the nearest holes increases, while the absolute value of negative dispersion for the dual-core photonic crystal fiber decreases. The dispersion property can be useful in reducing the coupling loss between the compensating dispersion fiber and a conventional single mode fiber.
authors.affiliation: Nanophotonics Laboratory, Advanced Photonics Research Institute, GIST, Gwangju 500-712, Republic of Korea.
authors.forename: Soan
authors.initials: S
authors.lastname: Kim
authors.forename: Chul-Sik
authors.initials: CS
authors.lastname: Kee