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Photon counting module



Single pixel photon counting module for low-light-level detection

The C11202 series is a single-photon counting module capable of detecting low light levels. The C11202 series is made up of a thermoelectrically cooled single-pixel photon counter (SPPC), an amplifier, a comparator, a high-voltage power supply circuit, and a temperature controller. The photosensitive area is available in two sizes of φ50 μm and φ100 μm, and such small photosensitive areas offer a low dark count. Modules operate just by connecting them to an external power supply (±5 V).

-High sensitivity in the short wavelength range
-Low dark count
-Low afterpulse

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Wavelength type VIS
Built-in sensor TE-cooled single pixel photon counter (SPPC)
Effective photosensitive area φ100 μm
Spectral response range (min./max.) 320 to 900
Dark count (typ) 0.03 kcps
Photon detection efficiency (typ.) 70 %
Output Digital
Measurement condition Ta=25 ℃, λ=λp, Vs=±5 V

Dimensional outline (unit: mm)


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