Self-Pulsing in driven-dissipative photonic Bose-Hubbard dimers

TL;DR

This paper experimentally studies the nonlinear dynamics and self-pulsing behavior of a driven-dissipative photonic Bose-Hubbard dimer, revealing stable oscillations and hysteresis effects in coupled fiber resonators.

Contribution

It provides the first detailed experimental investigation of self-pulsing and hysteresis in a driven-dissipative photonic Bose-Hubbard dimer system.

Findings

Observation of stable self-switching oscillations near avoided resonance crossings.

Hysteresis cycles significantly affected by driven cavity detuning.

Experimental results align with the driven-dissipative Bose-Hubbard dimer model.

Abstract

We experimentally investigate the nonlinear dynamics of two coupled fiber ring resonators, coherently driven by a single laser beam. We comprehensively explore the optical switching arising when scanning the detuning of the undriven cavity, and show how the driven cavity detuning dramatically changes the resulting hysteresis cycle. By driving the photonic dimer out-of-equilibrium, we observe the occurrence of stable self-switching oscillations near avoided resonance crossings. All results agree well with the driven-dissipative Bose-Hubbard dimer model in the weakly coupled regime.