Measurement of the Band Dispersions of a Floquet-Bloch Lattice Realised with Coupled Fibre Rings

Photonic systems have recently emerged as very powerful emulators of lattice physics. A number of works have used coupled waveguides and photonic resonators to study fundamental lattice phenomena like Bloch oscillations, gap solitons and one-way topological edge states. Of particular interest are systems that implement lattices subject to periodic time modulation: they open the possibility of studying wavepacket phenomena hardly accessible in solid state systems, such as anomalous quantum Hall edge transport and Thouless pumps.