Fig. 3
From: Determination of mode strengths in channel waveguide from the complex electric field
Retrieved modal strengths and output field profile for an asymmetric slab waveguide, for which we consider only the TE modes. The third order mode has maximum strength. In (a), magenta line shows the fundamental mode, black lines mark the waveguide boundaries, red and blue lines show real part of the actual and retrieved total field profiles, respectively. (b) actual (blue) and retrieved (red) mode strengths are compared, (c) real part of CSD, (d) phase of CSD. The white dash line in (c) indicate the selected line profile of CSD used for mode strength retrieval.
