Figure 4
From: Moving Bragg grating solitons in a semilinear dual-core system with dispersive reflectivity
Stability regions corresponding to the upper gap in the (m, Ω) plane for different values of soliton velocity (increasing δ from left to right) and relative group velocity (increasing c from top to bottom) for κ = 4. The areas which lie outside the gap and consequently do not contain soliton solutions are shown by the diagonal lines.
