Photon counting modules
C11202 series
Single pixel photon counting
module for low-light-level detection
1
Structure
Parameter
Symbol
C11202-050
C11202-100
Unit
Internal photodetector
-
Single-pixel photon counter
-
Photoseinsitive area size
-
ϕ
50
ϕ
100
μ
m
Absolute maximum ratings
Parameter
Symbol
Condition
C11202-050
C11202-100
Unit
Supply voltage
Vs
±
6
V
Operating temperature
Topr
No condensation
-10 to +40
°
C
Storage temperature
Tstg
No condensation
-20 to +70
°
C
Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the
product within the absolute maximum ratings.
Electrical and optical characteristics (Typ. Ta=25 °C,
λ
=
λ
p, Vs=±5 V, unless otherwise noted)
Parameter
Symbol
Condition
C11202-050
C11202-100
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Spectral response range
λ
320 to 900
320 to 900
nm
Peak sensitivity wavelength
λ
p
-
450
-
-
450
-
nm
Element temperature
(set temperature)
Td
-
-20
-
-
-20
-
°
C
Photon detection e
ffi
ciency
PDE
60
70
-
60
70
-
%
Dark count
-
-
7
25
-
30
100
cps
Afterpulse probability
-
100 ns to 500 ns
-
0.1
-
-
0.1
-
%
Comparator output
-
TTL compatible
TTL compatible
-
Maximum count rate
-
-
30
-
-
20
-
Mcps
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 ampli
fi
er, a comparator, a high-voltage power supply circuit,
and a temperature controller. The photosensitive area is available in two sizes of
ϕ
50
μ
m and
ϕ
100
μ
m, and such small photo-
sensitive areas o
ff
er a low dark count. Modules operate just by connecting them to an external power supply (±5 V).
Low-light-level measurement
High sensitivity in the short wavelength range
Low afterpulse
Fluorescence measurement
Particle diameter measurement
Low dark count
Analytical instrument
Features
Applications