Analytical Formulas for Dispersion and Effective Area in Hollow-Core Tube Lattice Fibers

In this work, we propose analytical formulas for the estimation of dispersion properties and effective area fundamental mode hollow-core inhibited coupling fibers with a microstructured cladding composed by ring dielectric tubes. The are based on model which has already been successfully applied to confinement loss. takes into account effects core modes in context single-tube approximation. Effective index, group velocity dispersion, estimated compared results obtained from numerical simulations, considering ten different fibers. comparison shows good accuracy proposed formulas, do not require any tuning fitting parameters. On basis analysis carried out, scaling law relating radius is also given. Finally, give same parameters other Hollow-core fibers, such as nested, ice-cream, kagome