NASA NTRS · 19740039065
Four photon parametric amplification
Abstract
An analysis is presented describing four-photon parametric amplification in an unbiased Josephson junction. Central to the theory is the model of the Josephson effect as a nonlinear inductance. Linear, small signal analysis is applied to the two-fluid model of the Josephson junction. The gain, gain-bandwidth product, high frequency limit, and effective noise temperature are calculated for a cavity reflection amplifier. The analysis is extended to multiple (series-connected) junctions and subharmonic pumping.
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Parrish, P. T., Feldman, M. J., Ohta, H., Chiao, R. Y.. 1974-01-01. Four photon parametric amplification. https://ntrs.nasa.gov/citations/19740039065
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