Josephson parametric amplifiers are an important part of a modern superconducting quantum computing platform and squeezed quantum states generation devices. Traveling wave and impedance-matched parametric amplifiers provide broad bandwidth for high-fidelity single-shot readout of multiple qubit superconducting circuits. Here, we present a quantum-limited 3-wave-mixing parametric amplifier based on superconducting nonlinear asymmetric inductive elements (SNAILs), whose useful bandwidth is enhanced with an on-chip two-section impedance-matching circuit based on microstrip transmission lines. The amplifier dynamic range is increased using an array of 67 SNAILs with 268 Josephson junctions, forming a nonlinear quarter-wave resonator. Operating in a current-pumped mode, we experimentally demonstrate an average gain of 17 dB across 300 MHz bandwidth, along with an average saturation power of –100 dBm, which can go as high as −97 dBm with quantum-limited noise performance. Moreover, the amplifier can be fabricated using a simple technology with just one e-beam lithography step.
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5 December 2022
Research Article|
December 06 2022
Broadband SNAIL parametric amplifier with microstrip impedance transformer
D. Ezenkova
;
D. Ezenkova
(Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
2
Dukhov Automatics Research Institute, VNIIA
, Moscow 127030, Russia
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D. Moskalev
;
D. Moskalev
(Conceptualization, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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N. Smirnov
;
N. Smirnov
(Conceptualization, Formal analysis, Investigation, Methodology, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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A. Ivanov
;
A. Ivanov
(Formal analysis, Investigation, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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A. Matanin
;
A. Matanin
(Formal analysis, Investigation, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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V. Polozov
;
V. Polozov
(Formal analysis, Investigation, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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V. Echeistov
;
V. Echeistov
(Formal analysis, Investigation, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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E. Malevannaya
;
E. Malevannaya
(Formal analysis, Investigation)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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A. Samoylov
;
A. Samoylov
(Formal analysis, Investigation, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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E. Zikiy
;
E. Zikiy
(Formal analysis, Investigation, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
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I. Rodionov
I. Rodionov
a)
(Conceptualization, Formal analysis, Investigation, Project administration, Supervision, Writing – review & editing)
1
FMN Laboratory, Bauman Moscow State Technical University
, Moscow 105005, Russia
2
Dukhov Automatics Research Institute, VNIIA
, Moscow 127030, Russia
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 121, 232601 (2022)
Article history
Received:
October 07 2022
Accepted:
November 26 2022
Citation
D. Ezenkova, D. Moskalev, N. Smirnov, A. Ivanov, A. Matanin, V. Polozov, V. Echeistov, E. Malevannaya, A. Samoylov, E. Zikiy, I. Rodionov; Broadband SNAIL parametric amplifier with microstrip impedance transformer. Appl. Phys. Lett. 5 December 2022; 121 (23): 232601. https://doi.org/10.1063/5.0129862
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