RF-ICE: large-scale gigahertz readout of frequency-multiplexed microwave kinetic inductance detectors

M. Rouble; G. Smecher; A. Anderson; P. S. Barry; K. Dibert; M. Dobbs; K. S. Karkare; J. Montgomery

doi:10.1117/12.2630286

31 August 2022 RF-ICE: large-scale gigahertz readout of frequency-multiplexed microwave kinetic inductance detectors

M. Rouble, G. Smecher, A. Anderson, P. S. Barry, K. Dibert, M. Dobbs, K. S. Karkare, J. Montgomery

Proceedings Volume 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; 1219024 (2022) https://doi.org/10.1117/12.2630286
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

We present RF-ICE, a novel readout platform for microwave kinetic inductance detectors (MKIDs), optimized for use on millimeter-wavelength telescopes. The RF-ICE system extends ICE, a versatile, mature signal processing platform currently in use on telescopes around the world, into a new operational domain with MKIDs biased with gigahertz carriers. The system couples the FPGA-based ICE motherboard with a radio-frequency digitization daughterboard to enable direct digital synthesis from 0 to 6 GHz without the need for external mixing. The system operates two independent readout modules, each with 1024 frequency-multiplexed readout channels spaced across 500 MHz of carrier bandwidth. The system, which is under active development, is in operation with prototype detector wafers and will be deployed for the upcoming SPT-SLIM and SPT-3G+ experiments.

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M. Rouble, G. Smecher, A. Anderson, P. S. Barry, K. Dibert, M. Dobbs, K. S. Karkare, and J. Montgomery "RF-ICE: large-scale gigahertz readout of frequency-multiplexed microwave kinetic inductance detectors", Proc. SPIE 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 1219024 (31 August 2022); https://doi.org/10.1117/12.2630286

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