Cri/oFlex® superconducting cables replace conventional wiring inside cryostats, delivering higher channel density, lower thermal load, and proven reliability at scale. Built for quantum and cryogenic systems that demand more.
Our products consist of polyimide in combination with Silver (Ag) or Niobium Titanium (NbTi), creating a robust, low-loss flexible stripline for cryogenic environments. Microwave losses are 1.5 dB/m @6GHz for NbTi platform, while maintaining a contact resistance of less than 10 mOhm.
The attenuator uses modeled attenuation profile distribution and a modular design based on –5 dB unit cells to achieve predictable performance. Its planar structure enables fast, localized heat extraction through clamping, ensuring effective thermal management and stable operation.
The low-pass filters suppress unwanted high-frequency signals at the quantum device, helping to maintain a clean electromagnetic environment for sensitive measurements. Each filter is engineered with a defined cut-off frequency—commonly 1, 8, or 12 GHz—to match the requirements of different quantum systems.
IR filters block high-frequency radiation with a slope of -1 or -1.5 dB/ GHz to decrease quasi particle poisoning. The metal powder in side the dielectric, available for both the Ag and NbTi platforms, dissipates the signals.
Flux Bias lines are essential for controlling superconducting qubits and tuneable couplers, where they are used to precisely tune the qubit’s frequency or manage coupling between qubits. These lines are engineered for bias signals up to 1 GHz, with a focus on minimizing both active and passive heating across all cryogenic stages.
Microwave Drive lines are used for exciting transitions between qubit states and for performing qubit-state-dependent measurements. They are engineered for high signal fidelity in the 6-8 GHz operating range, where qubits control and readout protocols demand precise amplitude, phase stability, and low noise.
Signal lines serve as a versatile building block for cryogenic, high-frequency I/O and are used across a wide range of applications where many channels must be routed into cold and space-constrained environments. Designed for simplicity, these lines do not include integrated components, making them easy to deploy and compatible with a broad variety of setups.
Read-out systems transfer signals from the quantum device back to the control electronics, placing stringent demands on signal integrity, noise performance, and often requires low-temperature amplification. We offer a fully integrated solution by combining our in-house produced return and Pump lines with carefully selected third-party active and isolating components.
