Broadband parametric amplifiers based on nonlinear kinetic inductance artificial transmission lines

S. Chaudhuri; D. Li; K. D. Irwin; C. Bockstiegel; J. Hubmayr; J. N. Ullom; M. R. Vissers; J. Gao

doi:10.1063/1.4980102

Broadband parametric amplifiers based on nonlinear kinetic inductance artificial transmission lines

S. Chaudhuri, D. Li, K. D. Irwin, C. Bockstiegel, J. Hubmayr, J. N. Ullom, M. R. Vissers, J. Gao

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

We present broadband parametric amplifiers based on the kinetic inductance of superconducting NbTiN thin films in an artificial (lumped-element) transmission line architecture. We demonstrate two amplifier designs implementing different phase matching techniques: periodic impedance loading and resonator phase shifters placed periodically along the transmission line. Our design offers several advantages over previous CPW-based amplifiers, including intrinsic 50 Ω characteristic impedance, natural suppression of higher pump harmonics, lower required pump power, and shorter total trace length. Experimental realizations of both versions of the amplifiers are demonstrated. With a transmission line length of 20 cm, we have achieved gains of 15 dB over several GHz of bandwidth.

Original language	English (US)
Article number	152601
Journal	Applied Physics Letters
Volume	110
Issue number	15
DOIs	https://doi.org/10.1063/1.4980102
State	Published - Apr 10 2017
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4980102

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title = "Broadband parametric amplifiers based on nonlinear kinetic inductance artificial transmission lines",

abstract = "We present broadband parametric amplifiers based on the kinetic inductance of superconducting NbTiN thin films in an artificial (lumped-element) transmission line architecture. We demonstrate two amplifier designs implementing different phase matching techniques: periodic impedance loading and resonator phase shifters placed periodically along the transmission line. Our design offers several advantages over previous CPW-based amplifiers, including intrinsic 50 Ω characteristic impedance, natural suppression of higher pump harmonics, lower required pump power, and shorter total trace length. Experimental realizations of both versions of the amplifiers are demonstrated. With a transmission line length of 20 cm, we have achieved gains of 15 dB over several GHz of bandwidth.",

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T1 - Broadband parametric amplifiers based on nonlinear kinetic inductance artificial transmission lines

AU - Chaudhuri, S.

AU - Li, D.

AU - Irwin, K. D.

AU - Bockstiegel, C.

AU - Hubmayr, J.

AU - Ullom, J. N.

AU - Vissers, M. R.

AU - Gao, J.

PY - 2017/4/10

Y1 - 2017/4/10

N2 - We present broadband parametric amplifiers based on the kinetic inductance of superconducting NbTiN thin films in an artificial (lumped-element) transmission line architecture. We demonstrate two amplifier designs implementing different phase matching techniques: periodic impedance loading and resonator phase shifters placed periodically along the transmission line. Our design offers several advantages over previous CPW-based amplifiers, including intrinsic 50 Ω characteristic impedance, natural suppression of higher pump harmonics, lower required pump power, and shorter total trace length. Experimental realizations of both versions of the amplifiers are demonstrated. With a transmission line length of 20 cm, we have achieved gains of 15 dB over several GHz of bandwidth.

AB - We present broadband parametric amplifiers based on the kinetic inductance of superconducting NbTiN thin films in an artificial (lumped-element) transmission line architecture. We demonstrate two amplifier designs implementing different phase matching techniques: periodic impedance loading and resonator phase shifters placed periodically along the transmission line. Our design offers several advantages over previous CPW-based amplifiers, including intrinsic 50 Ω characteristic impedance, natural suppression of higher pump harmonics, lower required pump power, and shorter total trace length. Experimental realizations of both versions of the amplifiers are demonstrated. With a transmission line length of 20 cm, we have achieved gains of 15 dB over several GHz of bandwidth.

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Broadband parametric amplifiers based on nonlinear kinetic inductance artificial transmission lines

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