Kominis, YannisBountis, TassosFlach, Sergej2018-08-232018-08-232016-09-19Yannis Kominis, Tassos Bountis, Sergej Flach. 2016. The Asymmetric Active Coupler: Stable Nonlinear Supermodes and Directed Transport. Scientific Reportshttp://nur.nu.edu.kz/handle/123456789/3401We consider the asymmetric active coupler (AAC) consisting of two coupled dissimilar waveguides with gain and loss. We show that under generic conditions, not restricted by parity-time symmetry, there exist finite-power, constant-intensity nonlinear supermodes (NS), resulting from the balance between gain, loss, nonlinearity, coupling and dissimilarity. The system is shown to possess non-reciprocal dynamics enabling directed power transport functionality.enAttribution-NonCommercial-ShareAlike 3.0 United StatesAsymmetric Active CouplerArticle