Abstract
Using standard telecommunication equipment, we present an experimental platform for investigating Parity-Time () symmetry in a two-dimensional synthetic lattice with tunable gain, loss and phase structure. By exploiting the fibre nonlinearity, dissipative solitons and wave collapse are realized, for which the later one gives rise to an amplified, self-accelerating nonlinear wave packet. Following a concept developed in [1], we present a novel protocol for realizing -symmetry in a 2D synthetic lattices based on mixed short and long-range coupling. Our set-up (see Fig. 1a) consists of two pairs of slightly dissimilar coupled fibre loops, where each fibre patch is approximately 30 km long.
© 2019 IEEE
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