Design of Polarization-Independent Coarse Wavelength Splitters Based on Ridge-Waveguide Directional Couplers

Figure 6

Simulated power in the cross waveguide for TE and TM polarizations of (a) λ = 1.31 μm, (b) λ = 1.54 μm, and (c) the corresponding field profiles along the directional coupler.

(a)

(b)

(c)