Evaluation of a Microwave SQUID Multiplexer Prototype

Author

Lehnert, K.W. ; Irwin, K.D. ; Castellanos-Beltran, M.A. ; Mates, J.A.B. ; Vale, L.R.

Author_Institution

Univ. of Colorado at Boulder, Boulder

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

705

Lastpage

709

Abstract

As large arrays of ultrasensitive cryogenic detectors of radiant energy are developed, multiplexing schemes are required to manage system complexity. Any such scheme must also meet stringent sensitivity, bandwidth, dynamic range and power dissipation specifications. We describe preliminary tests of a microwave frequency-division multiplexed readout of SQUID amplifiers. From these initial tests we estimated the number of SQUIDs that can be multiplexed with this scheme and the sensitivity and bandwidth of each SQUID amplifier.

Keywords

SQUIDs; cryogenic electronics; frequency division multiplexing; microwave amplifiers; microwave detectors; superconducting resonators; SQUID amplifiers; bandwidth; frequency division multiplexing; microwave SQUID multiplexer prototype; microwave frequency-division multiplexed readout; power dissipation; radiant energy; resonators; ultrasensitive cryogenic detectors; Bandwidth; Cryogenics; Detectors; Energy management; Multiplexing; Power system management; Prototypes; SQUIDs; Sensor arrays; Testing; Frequency division multiplexing; SQUIDs; phase noise; superconducting resonators;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.898118

Filename

4277553