Highly nonlinear photonic crystal fibers for optical coherence tomography applications

Based on the finite difference method, different properties of highly nonlinear photonic crystal fibers are calculated. It is demonstrated that the nonlinear coefficients more than 64 and 55 [Wkm]
⁻¹
at 1.06 µm and 1.3 µm, respectively, with flattened chromatic dispersion of 0 ± 3.7 ps/(nm.km) and low confinement losses, simultaneously.