Title :
Small and large signal analyses of Josephson nonlinear inductance for superconductive parametric amplifier
Author :
Mohebbi, Hamid Reza ; Majedi, A.Hamed
Author_Institution :
Dept. of ECE., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
Due to the inherent nonlinearity in the Josephson junction (JJ) element, there is great potential to develop nonlinear parametric devices, such as amplifiers and mixers. In this paper, we investigate the time domain small-signal and large-signal analysis on the nonlinear flux-current characteristics of an array of lumped JJs. The procedure is similar to that applied on the nonlinear current-voltage characteristics of a semiconductor p-n junction diode, and results are presented in closed-form equations. The gain improvement due to parametric interaction of the pump with the signal is also discussed at the end of the paper.
Keywords :
parametric amplifiers; semiconductor diodes; superconducting junction devices; superconductivity; Josephson junction element; Josephson nonlinear inductance; closed-form equations; semiconductor p-n junction diode; superconductive parametric amplifier; Circuits; Inductance; Josephson junctions; Optical amplifiers; Quantum computing; Semiconductor optical amplifiers; Signal analysis; Superconducting device noise; Superconductivity; Voltage; Josephson junction; Large-signal analysis; Nonlinear devices; Parametric amplifier; Small-signal analysis;
Conference_Titel :
Science and Technology for Humanity (TIC-STH), 2009 IEEE Toronto International Conference
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-3877-8
Electronic_ISBN :
978-1-4244-3878-5
DOI :
10.1109/TIC-STH.2009.5444531
