An SPCM operates in Geiger mode, allowing it to detect individual photons, whereas a standard photodiode produces a current proportional to the total incident light intensity.
Single Photon Counting Modules (SPCM) Component Intelligence
Precision photon detection for ultra-low light environments.
What are Single Photon Counting Modules (SPCM) components?
SPCMs are specialized detectors designed to register individual photons. They are critical for applications requiring extreme sensitivity, such as quantum key distribution, fluorescence lifetime imaging, and LIDAR, where signal levels are near the noise floor.
How to Choose Single Photon Counting Modules (SPCM) Components
Selecting an SPCM requires balancing sensitivity against noise performance.
Detection Efficiency
Verify the quantum efficiency at your specific operating wavelength.
Dark Count Rate
Lower dark counts are essential for high signal-to-noise ratios in low-light environments.
Dead Time
Short dead times allow for higher photon count rates without saturation.
Afterpulsing
Assess the probability of spurious pulses following a detection event.
Active Area
Ensure the active area matches your optical coupling requirements.
Popular Single Photon Counting Modules (SPCM) Components
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