Figure 2
Variation of coupling length Lc with the change of (a) width w and height h, and (b) Variation of Lc with separation distance d of silicon waveguide without strips. Inset: electric field (Ey) distribution (2D surface plot) of the symmetric and antisymmetric super-TE-modes for two adjacent silicon waveguides with geometrical parameters w = 1.5 µm, h = 0.6 µm, and d = 0.5 µm. image of Electric field distribution is created by COMSOL Multiphysics 5.3, https://www.comsol.com (license number—17074294) released to Zewail City of Science and Technology, Giza, Egypt.
