DESCRIPTION

· The SPCM-AQRH is a Single Photon Counting Module by Excelitas Technologies, detecting photons from 400nm to 1060nm.
· Features a silicon avalanche photodiode with a 180µm circular active area, achieving over 70% photon detection efficiency at 650nm.
· Generates a TTL-level pulse for each detected photon, output via a BNC connector requiring 50 Ω termination.
· Includes thermoelectric cooling and temperature control for stable performance across 5˚C to 70˚C.
· Offers mounting options: free space window, FC fiber adaptor, C-mount, or tube cage mount bracket.
· Enhanced with reduced dead time (<25 ns), improved timing resolution, and internal protection circuitry.
· Compliant with EU RoHS Directive 2015/863/EU.

FEATURES

· Peak PDE: >70% @ 650nm.
· Dynamic range: >35 Mcps.
· Single +5 V supply.
· Low after pulse probability.
· High uniformity over large active area.
· Unmatched linearity.
· RoHS-compliant.

APPLICATIONS

· LIDAR.
· Quantum Cryptography.
· Photon correlation spectroscopy.
· Astronomical observation.
· Optical range finding.
· Adaptive optics.
· Ultra-sensitive fluorescence.
· Particle sizing.
· Microscopy.