Nonstandard FDTD Simulation-Based Design of CROW Wavelength Splitters

Figure 6

Wavelength spectra from the simulation of the wavelength splitter of Figure 2. The observation ports are set at resonance-enhanced points outside disks 𝐴 and 𝐵. (a) Spectrum on the port 𝐴. Interchannel extinction ratios = 26.3 dB. (b) Spectrum on the port 𝐵. Interchannel extinction ratio = 29.1 dB.

(a)

(b)