Long-distance quantum key distribution (QKD) requires scalable, high-performance single-photon detection. The MARCONI project brought together Chase Research Cryogenic Ltd (CRC), the University of Glasgow, Redwave Labs and the University of Cambridge to develop a 64-channel SNSPD receiver.
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Scalable quantum photonics requires single-photon detectors that can be integrated directly with optical circuits. Superconducting nanowire single-photon detectors (SNSPDs) offer high sensitivity but require ultra-low temperatures to operate effectively.
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Superconducting nanowire single-photon detectors (SNSPDs) offer exceptional sensitivity and timing performance, making them highly attractive for next-generation LiDAR. However, SNSPDs require cryogenic temperatures to operate, creating a critical requirement for reliable, compact and stable sub-kelvin cooling.
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