We demonstrate amplification of picosecond laser pulses to 40?mJ at a 2?kHz pulse repetition frequency (PRF) from a two-stage cryogenic chirped-pulse Yb:YAG amplifier, composed of a regenerative amplifier (RGA) and a two-pass booster amplifier. The RGA produces 8.2mJ of energy at 2kHz PRF and 13.2mJ at 1kHz PRF with excellent energy stability (approximately 0.3% rms) and beam quality (M(2)<1.1)...

Josephson parametric amplifiers are an important part of a modern superconducting quantum computing platform and squeezed states generation devices. Traveling wave impedance-matched provide broad bandwidth for high-fidelity single-shot readout multiple qubit circuits. Here, we present quantum-limited 3-wave-mixing amplifier based on nonlinear asymmetric inductive elements (SNAILs), whose useful...