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ID281 Superconducting Nanowire

Single-photon detector with 80% quantum efficiency and fastest electronics

  • Detection range: 400-2500 nm
  • 80% quantum efficiency
  • Jitter: 50 ps (FWHM)
  • Closed-cycle cryostat

IDQ’s ID281 series detection system consists of a superconducting nanowire detector combined with high-performance electronics and a reliable cryogenic system. The system operates at 0.8 K and offers impressive performance: 80% quantum efficiency, count rate up to 15 MHz, dark counts <100 Hz, jitter below 50 ps (FWHM) and no afterpulsing.

The complete system is plug and play and includes: cryocooler, stable and adjustable bias current sources, cryogenic amplification stage, discriminators and counters. It comes with the best-in-class control and timing electronics: 1 GHz counters, 20 ps time resolution and fast data transfer rate (100 Mcps).

Our superconducting nanowire single-photon detectors can also be integrated into your own cryogenic system: the ID281 comes with everything that is necessary to install it in your own cryostat; including electronics, software, feed-throughs, cryogenic cables and connectors.


  • Detection range: 400-2500 nm
  • Free-running operation
  • Best-in-class quantum efficiency: 80%
  • Jitter: 50 ps (FWHM)
  • Low dark count rate: <100 Hz
  • 15 MHz maximum count rate
  • Closed-cycle cryostat
  • 1 to 8 channels per cryostat
  • Agile control and data recording electronics
  • Quantum key distribution
  • Single-photon source characterization
  • Eye-safe laser ranging (LIDAR)
  • Singlet oxygen measurement
  • Photoluminescence
  • Fluorescence lifetime measurement
  • Fibre optics characterization
  • Failure analysis of electronics circuits
  • Quantum computing & quantum optics