DESCRIPTION

· The SPCM-AQRH Single Photon Counting Module by Excelitas Technologies detects single photons from 400nm to 1060nm with superior performance.
· Features a unique silicon avalanche photodiode with a 180µm diameter active area, achieving >70% peak 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 including free space window, FC fiber adaptor, C-mount, and tube cage mount bracket/adaptor.
· Enhanced with reduced minimum dead time (<25 ns), improved timing resolution, and internal protection circuitry against ambient lighting overloads.
· Compliant with the European Union’s RoHS Directive 2015/863/EU.

FEATURES

· Peak Photon Detection Efficiency (PDE): >70% at 650nm.
· Active Area: 180µm diameter.
· Dynamic Range: >35 Mcps.
· Gated Output.
· Single +5V Supply.
· RoHS Compliant.
· Low After Pulse Probability.
· High Uniformity Across Large Active Area.
· Unmatched Linearity.
· Mounting Options: Free space window, FC fiber adaptor, C-mount bracket, Tube cage mount bracket.

APPLICATIONS

· LIDAR.
· Quantum Cryptography.
· Photon Correlation Spectroscopy.
· Astronomical Observation.
· Optical Range Finding.
· Adaptive Optics.
· Ultra-Sensitive Fluorescence.
· Particle Sizing.
· Microscopy.