Answers are grounded in this paper and cite their sources.
The physics of nonlinear couplers is dictated by its normal modes, modes that are found from linear (axially uniform) couplers. Elementary power-flow arguments establish whether the mode is stable or unstable. These facts provide the bifurcation diagram that fully characterizes nonlinear coupling.
No takes yet. Share an insight, caveat, or question.
Mitchell et al. (1989) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: