i have been made such code for ultra short pulse propagation in nonlinear optical fiber. in this code i took into my account the effect of material and waveguide dispersion. the material model i used is the Loranzian model. the results can be found in the papers
1. M. Nady, M. B. El_Mashade, A. M. Attiya , " Analysis of Ultra-Short Pulse Propagation in a Non-Linear Optical Fiber by Using BOR-FDTD Technique ", 25th National Radio Science Conference (NRSC2008), March, 18-20, 2008, Faculty of Engineering, Tanta Univ. Egypt
2. M. Nady, A. M. Attiya, M. B. El_Mashade , " Analysis of Nonlinear Fiber Bragg Grating Using BOR-FDTD with Direct Integration Method", 25th National Radio Science Conference (NRSC2008), March, 18-20, 2008, Faculty of Engineering, Tanta Univ. Egypt
if you intersted i will upload it for you
thanks