Dense wavelength division multiplexing (DWDM) system is a technique that allows optical carriers at different wavelengths to be multiplexed and transmitted simultaneously over a single waveguide. The standard channel spacing of a DWDM system is 0.8nm. In this research work, a DWDM system based on a photonic microring resonator has been designed using the ring radius variation method. Three reference ring radii of 1, 5, and 10µm have been used to investigate the number of channels that can be incorporated into the triple bands (S, C, and L). The three reference ring radii have been designed with radius variation, ∂r, of 0.9nm, 4.5nm, and 9.2nm, respectively, and the total number of channels incorporated into the system are 207, 196, and 194, respectively.
