Numerical analysis of photonic crystal fiber with chalcogenide core tellurite cladding composite microstructure

Kinds of photonic crystal fibers with chalcogenide core tellurite cladding composite microstructure are proposed. The multi-core photonic crystal fiber can reach the higher nonlinearity coefficient and the larger effective mode area. The small single-core photonic crystal fiber has a very high nonlinearity coefficient. At the wavelength λ=0.8 μm, the nonlinearity coefficient can reach 31.37053 W^-1·m^-1, at the wavelength λ=1.55 μm, the nonlinearity coefficient is 11.19686 W^-1·m^-1.