IQ Mixer Calibration for Superconducting Circuits

Abstract

An important device for modulation and frequency translation in the field of circuit quantum electrodynamics is the IQ mixer, an analog component for which calibration is necessary to achieve optimal performance. In this paper, we introduce techniques originally developed for wireless communication applications to calibrate upconversion and downconversion mixers. A Kalman filter together with a controllable carrier frequency offset calibrates both mixers without removing them from the embedding measurement infrastructure. These techniques can be embedded into room temperature control electronics and they will find widespread use as circuit QED devices continue to grow in size and complexity.

References in corpus (7)

• A Quantum Engineer's Guide to Superconducting Qubits
• Rapid high-fidelity multiplexed readout of superconducting qubits
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• Optimal state estimation for cavity optomechanical systems
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Cited by in corpus (7)

• The QICK (Quantum Instrumentation Control Kit): Readout and control for qubits and detectors
• Multipartite entanglement in a microwave frequency comb
• Calibration of Drive Non-Linearity for Arbitrary-Angle Single-Qubit Gates Using Error Amplification
• SQ-CARS: A Scalable Quantum Control and Readout System
• In situ mixer calibration for superconducting quantum circuits
• A practical guide for building superconducting quantum devices
• Measurement and control of a superconducting quantum processor with a fully-integrated radio-frequency system on a chip