Design and Analysis of Ultralow Voltage Graphene on the Silicon Rich Nitride Tunable Ring Resonator-Based Add-Drop Filter for DWDM Systems

Figure 7

Simulation of the filter responses at through and drop ports using NCMT are plotted together with the S-parameters simulation results given by FEM. T = 298 K in the TE mode (TM mode giving practically the same profile). Full wave at half maximum (FWHM) = 50 GHz (0.4 nm) around the resonance wavelength of 1570 nm with FSR = 3.7 nm, Q = 2584, finesse = 19, and an extinction ratio (ER) = 60 dB.