Broadband Josephson parametric amplifier using lumped-element transmission line impedance matching architecture

We present a fishbone-like lumped-element artificial transmission line to overcome impedance mismatch in a reflection-type Josephson parametric amplifier between a nonlinear resonator and an external transmission line. Using this easily prepared architecture, we design and fabricate a broadband Jose...

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Bibliographic Details
Published in:Applied physics letters 2022-02, Vol.120 (8)
Main Authors: Lu, Yapeng, Xu, Wenqu, Zuo, Quan, Pan, Jiazheng, Wei, Xingyu, Jiang, Junliang, Li, Zishuo, Zhang, Kaixuan, Guo, Tingting, Wang, Shuo, Cao, Chunhai, Wang, Huabing, Xu, Weiwei, Sun, Guozhu, Wu, Peiheng
Format: Article
Language:English
Subjects:
Amplification
Applied physics
Broadband
Circuits
Four-wave mixing
Frequency ranges
Impedance matching
Parametric amplifiers
Quantum electrodynamics
Three-wave mixing
Transmission lines
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Summary:We present a fishbone-like lumped-element artificial transmission line to overcome impedance mismatch in a reflection-type Josephson parametric amplifier between a nonlinear resonator and an external transmission line. Using this easily prepared architecture, we design and fabricate a broadband Josephson parametric amplifier, which has gain in an excess of 20 dB with a bandwidth of hundreds of MHz. Furthermore, by varying the working point of the device, the operating frequency of amplification can be tuned in a wide frequency range of 1 GHz while the amplifier operates in the mode of either three-wave mixing or four-wave mixing. Such a parametric amplifier is suitable for engineering applications of superconducting circuit quantum electrodynamics.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0080314