Array of Fabry-P\'erot waveguide resonators with tunable coupling

TL;DR

This paper demonstrates a scalable array of Fabry-Pérot waveguide resonators with tunable coupling via thermo-optic effects, enabling applications in optical delay lines and quantum simulators.

Contribution

It introduces a side-coupled Fabry-Pérot resonator array with widely tunable coupling rates, advancing integrated photonic device capabilities.

Findings

Coupling rate can be widely tuned through thermo-optic effect.

Device is linearly scalable and compatible with other integrated photonic components.

Potential applications include optical delay lines and quantum simulators.

Abstract

We demonstrate the elements of a coupled-resonator optical waveguide in a side-coupled Fabry-P\'erot configuration, and show that the coupling rate between adjacent waveguides can be widely tuned through the thermo-optic effect. The device is linearly scalable and can be combined with other integrated devices, with applications as an optical delay line or as a key element in a cavity-QED based quantum simulator.