title: Dispersion of square solid-core photonic bandgap fibers.
abstract: A novel solid-core photonic bandgap (PBG) fiber with a square lattice is proposed. It is proved that light can propagate with the PBG effect in a defect core that is created by downdoping the central silica of the lattice. Compared with those of solid-core honeycomb PBG fibers, both the PBG widths and the bandwidthsof defect modes are increased in square PBG fibers. Simulations show that dispersion of this square solid-core PBG fiber is dominated by material dispersion and influenced by the PBG edges at the bandwidth boundaries.
authors.forename: Yi
authors.initials: Y
authors.lastname: Ni
authors.forename: Zhang
authors.initials: Z
authors.lastname: Lei
authors.forename: Jia
authors.initials: J
authors.lastname: Shu
authors.forename: Peng
authors.initials: P
authors.lastname: Jiangde