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Reconfigurable re-entrant cavity for wireless coupling to an electro-optomechanical device.

T Menke¹, P S Burns², A P Higginbotham²

¹Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.

The Review of Scientific Instruments

|October 2, 2017

Summary

We developed an improved electro-optomechanical device for microwave-to-optics conversion, enhancing optical networks for superconducting qubits. This modular design simplifies assembly and improves optical performance.

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Area of Science:

Quantum engineering
Optomechanics
Superconducting circuits

Background:

Superconducting qubits require robust interfaces for quantum information processing.
Existing microwave-to-optics converters face challenges in assembly and performance tuning.
Optical networks are crucial for scalable quantum computing architectures.

Purpose of the Study:

To present an improved electro-optomechanical converter design for microwave-to-optics conversion.
To simplify the optical assembly and decouple it from the microwave setup.
To enhance the performance and compatibility of converters for superconducting qubit networks.

Main Methods:

Utilized a three-dimensional microwave cavity for enhanced coupling.
Integrated an LC resonator onto the converter chip.
Employed a modular device assembly for flexible tuning and testing.

Main Results:

Demonstrated a simplified optical assembly decoupled from the microwave setup.
Achieved flexible tuning of microwave coupling with minimal loss.
Confirmed no adverse impact on electromechanical experiments from the microwave cavity.

Conclusions:

The improved design offers a modular and tunable solution for microwave-to-optics conversion.
Enhanced compatibility with high-finesse optical cavities promises better optical performance.
This advancement facilitates the development of optical networks for superconducting qubits.