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Volume 22
Issue 3
10.3390/s22031225
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Communication

A Wideband Cryogenic Readout Amplifier with Temperature-Insensitive Gain for SNSPD

by
Xiaokang Niu
1,
Lianming Li
1,2,
Xu Wu
1,2 and
Dongming Wang
1,2,*
1
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210000, China
2
Purple Mountain Laboratory, Nanjing 210000, China
*
Author to whom correspondence should be addressed.
Sensors 2022, 22(3), 1225; https://doi.org/10.3390/s22031225
Submission received: 28 November 2021 / Revised: 27 January 2022 / Accepted: 2 February 2022 / Published: 6 February 2022
(This article belongs to the Special Issue Novel Sensors and Techniques in Quantum Imaging Applications)
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Abstract

This paper presents a temperature-insensitive wideband cryogenic amplifier for superconducting nanowire single-photon detectors (SNSPD). With a proposed folded diode-connected transistor load to realize a good device-tracking feature, the theoretical derivations the simulations and test results prove that the amplifier-gain cell has a stable gain performance over a wide temperature range, solving the issues of a lack of the accurate cryogenic device models. The amplifier achieves a gain of 26 dB from 100 kHz to 1 GHz at 4.2 K, consuming only 1.8 mW from a 1.8 V supply. With a 0.13-μm SiGe BiCMOS process, the chip area is 0.5 mm².
Keywords: cryogenic amplifier; superconducting nanowire single photon detectors; SNSPD; wideband; readout; low power cryogenic amplifier; superconducting nanowire single photon detectors; SNSPD; wideband; readout; low power

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MDPI and ACS Style

Niu, X.; Li, L.; Wu, X.; Wang, D. A Wideband Cryogenic Readout Amplifier with Temperature-Insensitive Gain for SNSPD. Sensors 2022, 22, 1225. https://doi.org/10.3390/s22031225

AMA Style

Niu X, Li L, Wu X, Wang D. A Wideband Cryogenic Readout Amplifier with Temperature-Insensitive Gain for SNSPD. Sensors. 2022; 22(3):1225. https://doi.org/10.3390/s22031225

Chicago/Turabian Style

Niu, Xiaokang, Lianming Li, Xu Wu, and Dongming Wang. 2022. "A Wideband Cryogenic Readout Amplifier with Temperature-Insensitive Gain for SNSPD" Sensors 22, no. 3: 1225. https://doi.org/10.3390/s22031225

APA Style

Niu, X., Li, L., Wu, X., & Wang, D. (2022). A Wideband Cryogenic Readout Amplifier with Temperature-Insensitive Gain for SNSPD. Sensors, 22(3), 1225. https://doi.org/10.3390/s22031225

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