Supercontinuum generation in a hollow-core methanol-silica based photonic crystal fiber: computational model and analysis

Abstract

We have computationally modeled a hollow-core photonic crystal fiber made up of methanol and silica for numerical study of linear effects, nonlinear effects and supercontinuum generation in the near-infrared wavelength region. We have obtained the dispersion in both normal and anomalous dispersion regimes with zero-dispersion wavelength at 1450 nm. The proposed fiber design possessed the nonlinear coefficient as 15.10 W-1.km-1 for the effective mode area 7.24 μm2 at pump wavelength of 1.55 μm in the anomalous dispersion region. The proposed fiber design is able to generate the ultrabroadband supercontinuum spectrum 600-2400 nm in a 12 cm long fiber length using 12 kW input peak power. Such fibers are strong candidate for the applications in wavelength division multiplexing.