The Zurich Instruments SHFPPC Parametric Pump Controller is a fully integrated system for operating Josephson parametric amplifiers. Leveraging the benefits of parametric amplification, the SHFPPC enables high-fidelity readout at the quantum limit for the measurement of superconducting or spin-based qubits.
Each channel features a microwave source with automatic level control to generate the required pump tone with high power and low phase noise. To suppress the residual pump tone in the return signal path, each channel features a cancellation circuit that can be calibrated automatically. The bi-directional operation of this circuit supports the two main application use cases: cancelling the pump tone at room temperature or in the cryostat.