Abstract:To investigate the propagation of electromagnetic fields in large-scale photonic devices,an efficient wavelet-based finite-difference time-domain (FDTD) numerical model was established and parallelized in computer cluster.In comparison to the standard FDTD method,this model features higher numerical dispersion properties.Thus,a significant reduction in the number of spatial cells,i.e.used memory,and a considerable decrease in the run time was achieved in the parallel computation environment.In this paper,the computation efficiency of the parallelized FDTD model was demonstrated,the main factors which influence the parallel computation were analyzed;then,a mathematical model to estimate the run time of the computation was also established.
