EXCELITASNEWSPCM-AQRH
SPCM-AQRH Single Photon Counting Module
The family’s standard module: counts single photons from 400 to 1064 nm with peak detection efficiency above 70%.

Excelitas · Single Photon Counting Modules (SPCM)
SPCM-AQ4C
Four independent channels in one package: SLiK photodiodes with FC fiber connectors on each channel, 400–1060 nm.
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QO-TDCC8
Time-stamps the SPCM output pulses to complete photon counting, coincidence and correlation (TCSPC) measurements. Its 8 configurable inputs read several modules at once, including the four-channel AQ4C.
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EXCELITASNEWSPCM-AQRH
The family’s standard module: counts single photons from 400 to 1064 nm with peak detection efficiency above 70%.
EXCELITASNEWSPCM-AQRH-TR
The version selected for TCSPC and fluorescence lifetime work: timing resolution below 250 ps with 75% typical PDE at 650 nm.
EXCELITASNEWSPCM-NIR
The version selected for red and near-infrared: 70% typical PDE at 780 nm for long-range LiDAR, quantum communication and microscopy.