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Nonreciprocity, Isolation and Time-reversal Symmetry in Nonlinear Devices

Fernandes, D. E. ; Silveirinha, M. G.

Nonreciprocity, Isolation and Time-reversal Symmetry in Nonlinear Devices, Proc International Conference on Metamaterials, Photonic Crystals and Plasmonics META, Lisboa, Portugal, Vol. , pp. - , July, 2019.

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Abstract
Here we highlight that nonlinear devices that operate as “electromagnetic diodes” for individual port excitations, cannot possibly provide a robust optical isolation under a simultaneous port excitation. Moreover, in the lossless case, typical nonlinear structures, despite being nonreciprocal, are time-reversal invariant, and thereby are inherently bi-directional.