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ID120 Visible Single-Photon Detector

High quantum efficiency at 800nm large active area 500μm

This product is no longer available for purchase. Contact us if you need more information.

  • Free-running
  • 80% quantum efficiency
  • 500 μm active area
  • Adjustable settings

IDQ’s ID120 series consists of compact and affordable single-photon detector modules, based on reliable silicon avalanche photodiodes that are sensitive in the visible spectral range.

These new detectors come as free-space module, passive quenching, maximal efficiency value around 800nm.

Key advantages of the ID120 modules are high quantum efficiency up to 80%, a large active area and adjustable settings.


  • Tunable Quantum Efficiency
  • Tunable temperature of the APD
  • C-mouint, SM1, Thorlabs cage compatible
  • Provided with universal network adapter (110/220 V)

  • NIM and LVTTL outputs
  • Wide spectral range (350 nm – 1000 nm)
  • Highly reliable

  • Time-correlated single photon counting TCSPC
  • Time-resolved confocal microscopy
  • Fluorescence and luminescence detection
  • Single molecule spectroscopy, DNA sequencing
  • Fluorescence correlation spectroscopy
  • Decay time measurements, laser testing
  • Spectrophotometry, flow cytometry
  • LIDAR, optical range finding
  • Quantum optics, quantum cryptography, OTDR

Product Documentation

Application Notes

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