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InGaAs Single Photon Counting Module

Reference: MPD-InGaAs

High-end detection module for NIR-single-photon counting and timing.



0,00 € tax excl.




Simon Kempf
Sales Engineer
+49 8153 405-18
s.kempf@laser2000.de
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Product description

It is based on an InGaAs/InP SPAD with 25 µm active area diameter (10 µm for fibre-pigtailed version) that allows photon counting from 900 nm to 1.7 µm. The module consists of the detector and the control unit which are integrated in a compact housing. This allows to easily integrate it in any experimental setup.

The electronics surrounding the detector was designed to exploit the good performance of InGaAs/InP SPADs. The module includes a pulse generator for gating the detector, a front-end electronics for avalanche sensing, a fast circuitry for promptly quenching the avalanche current, by acting both at the cathode and at the anode of the detector, and some sub-circuits for signal conditioning.

Thanks to its ease-of-use and great flexibility, all the parameters of the SPAD can be adjusted by the user, in order to optimize the operating conditions according to the measurements to be performed.


MODULE FEATURES:

  • 25µm active sensing area diameter
  • High Photon Detection Efficiency up to 40% from 900nm to 1550nm 
  • Free Space and Fiber Pigtailed version available
  • Available in different Grade depending on Dark Counts specifications
  • Adjustable PDE and hold-off time
  • Gate width from 1 ns to 500 ns
  • Int. or Ext. trigger up to 133 MHz

ParameterNotesMinTypMaxEinheit
Active area diameterFree space25µm

FC/PC fibre pigtailed (SMF-28)10
Photon Detection EfficiencyVex=2 V; λ=1550 nm10%
Timing jitter (FWHM)At Vex=6 V70ps
DarkcountrateVex=2 V; T=229 K Free space810kcps
Vex=2 V; T=229 K SM fibre-pigtailed12kcps
SPAD temperatureSW selectable225243K
Gate risetime(20-80%)2ns
Excess bias rangeFree Gate and free running25V
Fixed Gate27V
Hold-off timeSW selectable in 10 ns steps13000µs
GatewidthSW selectable in 1 ns steps11.4ns-ms
Gate repetition frequenzy100MHz
Internal trigger frequencySW selectable in 1 Hz steps100100Hz-MHz
Delay pathSW selectable in 1 ns steps0100ns
Counter integration timeSW gesteuert in 20 ms steps0,160s
PHOTON OUT, NIM OUTNIM Output-8000mV
Required load (DC)50Ω
PHOTON OUTPulse width10ns
TRIGGER IN, AUX INAmplitude-22,5V
Load Impedance (DC)50Ω
Pulse width800ps
TTL OUTOutput levels02,7V
Required load (DC)50

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