Three-wave mixing in JTWPAs is more sensitive to pump phase noise than four-wave mixing, with even-order nonlinearities above 4th order causing more than 10 dB phase noise increase at high offsets as pump power rises.
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Impact of Pump Phase-Noise on Josephson Traveling-Wave Parametric Amplifiers
Three-wave mixing in JTWPAs is more sensitive to pump phase noise than four-wave mixing, with even-order nonlinearities above 4th order causing more than 10 dB phase noise increase at high offsets as pump power rises.