Piezo-optomechanical signal transduction using Lamb wave supermodes in a suspended Gallium Arsenide photonic integrated circuits platform

Abstract

Piezoelectric optomechanical platforms present one of the most promising routes towards efficient transduction of signals from the microwave to the optical frequency domains. New device architectures need to be developed in order to achieve the stringent requirements for building efficient quantum transducers. In this work, we utilize the mechanical supermode principle to improve the overall microwave to optical transduction efficiency, by fabricating Lamb wave resonators that are hybridized with the mechanical breathing modes of a rib waveguide in a suspended gallium arsenide (GaAs) photonic integrated circuits (PIC) platform. Combining the strong elasto-optic interactions available in GaAs with the increased phonon injection efficiency enabled by this architecture, we demonstrate signal transduction up to 7 GHz, and an increase in transduction efficiency by $\approx$ 25$\times$ for the hybridized mode ($f_m\approx$ 2 GHz), using this approach. We also outline routes for improving device performance to enable quantum transduction within this platform.

v2: updated efficiency calculations, added additional datasets and 3D FEM simulations of the supermode

References in corpus (4)

• Supplementary information for "Quantum supremacy using a programmable superconducting processor"
• Quantum technologies with hybrid systems
• Cavity Optomechanics
• Microwaves in Quantum Computing

Cited by in corpus (6)

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• Piezoelectric actuation for integrated photonics
• Quantifying and mitigating optical surface loss in suspended GaAs photonic integrated circuits
• Manipulation of magnetic systems by quantized surface acoustic wave via piezomagnetic effect
• Engineering cm-scale true push-pull electro-optic modulators in a suspended GaAs photonic integrated circuit platform by exploiting the orientation induced asymmetry of the Pockels $r_{41}$ coefficient
• Gigahertz-frequency Lamb wave resonator cavities on suspended lithium niobate for quantum acoustics