DESCRIPTION

· The SPCM-AQRH Single Photon Counting Module by Excelitas Technologies detects single photons within a 400nm to 1060nm wavelength range, outperforming other photon counters.
· Features a unique 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 an operating temperature range of 5˚C to 70˚C.
· Offers mounting options: free space window, FC fiber adaptor, C-mount, or tube cage mount bracket/adaptor.
· Enhanced with reduced dead time (<25 ns), improved timing resolution, and internal protection circuitry against overload.

FEATURES

· Peak Photon Detection Efficiency (PDE): >70% at 650nm.
· Active area diameter: 180µm.
· Dynamic range: >35 Mcps.
· Gated output.
· Single +5V power supply.
· RoHS-compliant.
· Low after-pulse probability.
· High uniformity across the active area.
· Superior linearity.

APPLICATIONS

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