Gain and noise spectral density in a parametric amplifier with added white noise: Theory and experiment

In this paper, we discuss the behavior of a linear classical parametric amplifier in presence white noise and give theoretical estimates spectral density based on approximate Green’s functions obtained by using averaging techniques. To validate our theory, compare analytical results with experimental data from an analog circuit numerical simulations model’s stochastic differential equations. The were accurately described model. Moreover, noticed components output signal amplifier, which are due to noisy precursors instability. position, width, magnitude these agreement theory proposed here.