A High-Order Compact 2D FDFD Method for Waveguides

Table 1

The computational times and the number of nonzero elements.

Method	Computational time (s)	Number of nonzero elements
Low order (32 × 32 meshes)	166	27028
Low order (40 × 40 meshes)	418	42740
High order (16 × 16 meshes)	28	18336