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arXiv · 2208.02279

Period-doubled Floquet Solitons

Sebabrata Mukherjee·Mikael C. Rechtsman
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Abstract

We propose and experimentally demonstrate a family of Floquet solitons in the bulk of a photonic topological insulator that have double the period of the drive. Our experimental system consists of a periodically-modulated honeycomb lattice of optical waveguides fabricated by femtosecond laser writing. We employ a Kerr nonlinearity in which self-focusing gives rise to spatial lattice solitons. Our photonic system constitutes a powerful platform where the interplay of time-periodic driving, topology and nonlinearity can be probed in a highly tunable way.

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Sebabrata Mukherjee, Mikael C. Rechtsman. 2022-08-03. Period-doubled Floquet Solitons. https://doi.org/10.1364/optica.494823

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