id101 Mini OEM Photon Counter

id101 Mini OEM Photon Counter

id Quantiques id101 is intended for large-volume OEM applications, and is the smallest, most reliable and most efficient single photon detector on the market. Measuring only 8.3mm in diameter, this compact module offers timing resolution down to 40ps and ultra-low dead time of 45ns.

Based on a reliable silicon avalanche photodiode and sensitive in the visible spectral range, these modules are able to detect weak optical signals down to the single photon level.

The id101 consists of a CMOS silicon chip packaged in a standard TO5-8pin header with a transparent window cap. The chip combines either a 20micron or a 50micron single photon avalanche diode together with a fast active quenching circuit. Free space or fiber-coupled versions are available.

The id101 is provided as an electronic component and can be mounted on a printed circuit board and integrated in apparatus such as spectrometers or microscopes. The small detector size make it ideal for portable device applications.


  • 40ps timing resolution
  • 45ns dead time
  • Spectral range 350-900nm
  • Compact in T05 header
  • Free-sapce of fiber-coupled versions



This product could be used for the following applications:

  • Fluorescence
  • Luminescence Detection
  • Fluorescence correlation spectroscopy
  • Single Molecule Spectroscopy
  • Single photon counting detector
  • Quantum Cryptography
  • Laser scanning microscopy


This product is manufactured by id Quantique.

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