Four wave-mixing in a microstrip kinetic inductance travelling wave parametric amplifier
arXiv:2004.10532 · doi:10.1063/5.0004236
Abstract
Superconducting quantum circuits are typically operated at low temperatures (mK), necessitating cryogenic low-noise, wide-band amplifiers for signal readout ultimately also compatible with room temperature electronics. While existing implementations partly meet these criteria, they suffer from certain limitations, such as rippled transmission spectra or limited dynamic range, some of which are caused by the lack of proper impedance matching. We develop a MIcrostrip Kinetic Inductance Travelling Wave Amplifier (MI-KITWA), exploiting the nonlinear kinetic inductance of tungsten-silicide for wave-mixing of the signal and a pump, and engineer the impedance to , while decreasing the phase velocity, with benefit for the amplification. Despite losses, pumping on our device amplifies the signal by 15 dB over a 2 GHz bandwidth.
arXiv comment5 pages + supplemental material
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Cited by in corpus (11)
- Perspective on traveling wave microwave parametric amplifiers
- Nonlinearity and wideband parametric amplification in an NbTiN microstrip transmission line
- Three-wave mixing traveling-wave parametric amplifier with periodic variation of the circuit parameters
- A high gain travelling-wave parametric amplifier based on three-wave mixing
- An rf-SQUID-based traveling-wave parametric amplifier with -84 dBm input saturation power across more than one octave bandwidth
- Reflection-enhanced gain in traveling-wave parametric amplifiers
- Linear and nonlinear properties of a compact high-kinetic-inductance WSi multimode resonator
- Magnetic-field dependence of a Josephson traveling-wave parametric amplifier and integration into a high-field setup
- Nonlinear mechanisms in Al and Ti superconducting travelling-wave parametric amplifiers
- Influence of bias voltage noise on the Inelastic Cooper-Pair Tunneling Amplifier (ICTA)
- Compact Itinerant Microwave Photonics with Superconducting High-Kinetic Inductance Microstrips