Suppression of surface modes in the fiber

摘要

To provide systems and processes for manufacturing hollow core fibers (HCFs).SOLUTION: A hollow core fiber (HCF) 210 has a cross section with a substantially circular hollow core 250 in a cladding lattice, an axial center, and a reference direction that extends radially in one direction from the axial center. The HCF comprises modified holes 270, 280, 290 that are located along linear paths that extend radially outward from the axial center. The modified holes, which are located at various radial distances from the axial center and at various azimuthal angles from the reference direction, have non-uniform modified properties. These non-uniform modified properties include radially varying properties, azimuthally varying properties, or a combination of radially varying and azimuthally varying properties.SELECTED DRAWING: Figure 2