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26 August 2022 Recent progress on digital frequency-domain multiplexed readout of transition edge sensors using sub-kelvin SQUIDs
Tucker Elleflot, Aritoki Suzuki, Kam Arnold, Stephen Boyd, Robin Cantor, Tijmen de Haan, Amber Hornsby, John Joseph, Adrian Lee, Joshua Montgomery, Megan Russell
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Proceedings Volume PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; PC121900N (2022) https://doi.org/10.1117/12.2630218
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada
Abstract
Digital Frequency-Domain Multiplexing (DfMux) is a transition edge sensor multiplexing technique that has been used in mm-wave receivers with multiplexing factors as high as 68. It is the baseline readout technology for LiteBIRD and a potential upscope option for PICO. Recent efforts have been directed toward simplifying packaging, reducing parasitic impedance, and improving readout noise performance by integrating all cryogenic readout components onto a single cryogenic stage. Here we present recent progress including further improved performance and an increase in the scale of operation. This work marks an important step toward the development of DfMux for space-based mm-wave receivers.
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Tucker Elleflot, Aritoki Suzuki, Kam Arnold, Stephen Boyd, Robin Cantor, Tijmen de Haan, Amber Hornsby, John Joseph, Adrian Lee, Joshua Montgomery, and Megan Russell "Recent progress on digital frequency-domain multiplexed readout of transition edge sensors using sub-kelvin SQUIDs", Proc. SPIE PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, PC121900N (26 August 2022); https://doi.org/10.1117/12.2630218
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KEYWORDS
Multiplexing
Sensors
Cryogenics
Receivers
Packaging
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