Figure 4

Reconstructed density matrices of the polarization-entangled states generated from the 700-nm-wide waveguide (a,b) and the 1,100-nm-wide waveguide (c,d).
Reconstructed density matrices of the polarization-entangled states generated from the 700-nm-wide waveguide (a,b) and the 1,100-nm-wide waveguide (c,d).