Optimal Design of an Ultrasmall SOI-Based 1 × 8 Flat-Top AWG by Using an MMI

Table 1

Parameter optimization results of the SOI-based AWG.

Parameters	Parameters value
Wavelength	1550.918 nm
Number of output waveguides	8
Number of arrayed waveguides	30
Path length difference	19.76 𝜇m
Length of free propagation region	67 𝜇m
Diffraction order	40
Wavelength spacing	2 nm