The Asymmetric Active Coupler: Stable Nonlinear Supermodes and Directed Transport

2016/06/10 by Yannis Kominis, Kominis, Yannis, Tassos Bountis +3
Physics and Astronomy · #Chaotic Dynamics (nlin.CD) #FOS: Physical sciences #Optics (physics.optics) #Pattern Formation and Solitons (nlin.PS) #nlin.CD #nlin.PS #physics.optics

paper · pdf · doi:10.48550/arxiv.1606.03310

arxiv created 2016/06/10 · arxiv updated 2016/06/13

Abstract

We 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 nonreciprocal dynamics enabling directed power transport and optical isolation functionality.

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