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

An electro-optomechanical device capable of microwave-to-optics conversion has recently been demonstrated, with the vision of enabling optical networks of superconducting qubits. Here we present an improved converter design that uses a three-dimensional microwave cavity for coupling between the micr...

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Bibliographic Details
Published in:Review of scientific instruments 2017-09, Vol.88 (9), p.094701-094701
Main Authors: Menke, T., Burns, P. S., Higginbotham, A. P., Kampel, N. S., Peterson, R. W., Cicak, K., Simmonds, R. W., Regal, C. A., Lehnert, K. W.
Format: Article
Language:English
Subjects:
Assembly
Converters
Microwave coupling
Microwave transmission
Modular equipment
Optical communication
Scientific apparatus & instruments
Transmission lines
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Summary:An electro-optomechanical device capable of microwave-to-optics conversion has recently been demonstrated, with the vision of enabling optical networks of superconducting qubits. Here we present an improved converter design that uses a three-dimensional microwave cavity for coupling between the microwave transmission line and an integrated LC resonator on the converter chip. The new design simplifies the optical assembly and decouples it from the microwave part of the setup. Experimental demonstrations show that the modular device assembly allows us to flexibly tune the microwave coupling to the converter chip while maintaining small loss. We also find that electromechanical experiments are not impacted by the additional microwave cavity. Our design is compatible with a high-finesse optical cavity and will improve optical performance.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5000973