Numerical Examination of Nonlinearity in the Core of a Square Lattice Photonic Crystal Fiber

摘要

As light travels in the core of a square lattice photonic crystal fiber, many interesting phenomena are observed like the parametric nonlinearities from the third-order susceptibility composed of Kerr Effect and the Stimulated Raman Scattering. In this report, the nonlinearities in the core of a photonic crystal fiber are examined by using the Z transform. The 2D FDTD is used as numerical technique, and Z transform is applied instead of the Fourier Transform. As the numerical example, the phenomena of the propagation pulse in the square lattice photonic crystal fiber and the nonlinearity is examined for the weak Kerr Effect in the propagation pulse.