Optical Bias and Cryogenic Laser Readout of a Multipixel Superconducting Nanowire Single Photon Detector

F. Thiele, N. Lamberty, T. Hummel, T. Bartley, ArXiv:2403.14276 (2024).

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Thiele, Frederik; Lamberty, Niklas; Hummel, Thomas; Bartley, Tim
Abstract
Cryogenic opto-electronic interconnects are gaining increasing interest as a means to control and read out cryogenic electronic components. The challenge is to achieve sufficient signal integrity with low heat load processing. In this context, we demonstrate the opto-electronic bias and readout of a commercial four-pixel superconducting nanowire single-photon detector array using a cryogenic photodiode and laser. We show that this approach has a similar system detection efficiency to a conventional bias. Furthermore, multi-pixel detection events are faithfully converted between the optical and electrical domain, which allows reliable extraction of amplitude multiplexed photon statistics. Our device has a passive heat dissipation of 2.6mW, maintains the signal rise time of 3ns, and operates in free-running (self-resetting) mode at a repetition rate of 600kHz. This demonstrates the potential of high-bandwidth, low noise, and low heat load opto-electronic interconnects for scalable cryogenic signal processing and transmission.
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arXiv:2403.14276
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Thiele F, Lamberty N, Hummel T, Bartley T. Optical Bias and Cryogenic Laser Readout of a Multipixel Superconducting  Nanowire Single Photon Detector. arXiv:240314276. Published online 2024.
Thiele, F., Lamberty, N., Hummel, T., & Bartley, T. (2024). Optical Bias and Cryogenic Laser Readout of a Multipixel Superconducting  Nanowire Single Photon Detector. In arXiv:2403.14276.
@article{Thiele_Lamberty_Hummel_Bartley_2024, title={Optical Bias and Cryogenic Laser Readout of a Multipixel Superconducting  Nanowire Single Photon Detector}, journal={arXiv:2403.14276}, author={Thiele, Frederik and Lamberty, Niklas and Hummel, Thomas and Bartley, Tim}, year={2024} }
Thiele, Frederik, Niklas Lamberty, Thomas Hummel, and Tim Bartley. “Optical Bias and Cryogenic Laser Readout of a Multipixel Superconducting  Nanowire Single Photon Detector.” ArXiv:2403.14276, 2024.
F. Thiele, N. Lamberty, T. Hummel, and T. Bartley, “Optical Bias and Cryogenic Laser Readout of a Multipixel Superconducting  Nanowire Single Photon Detector,” arXiv:2403.14276. 2024.
Thiele, Frederik, et al. “Optical Bias and Cryogenic Laser Readout of a Multipixel Superconducting  Nanowire Single Photon Detector.” ArXiv:2403.14276, 2024.

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