Types of silicon photodiode detectors
Silicon photodiode detectors include:
PN junction silicon photodiodes are characterized by high sensitivity and low noise. And are therefore ideal detectors for medical and analytical instruments, industrial measurement systems and other applications.
Silicon PIN junction photodiodes provide a very fast time response when a shutter voltage is applied. They are therefore suitable for use in optical communications, fast sensors, etc.
Avalanche PIN photodiodes exhibit an intrinsic gain, which distinguishes them from conventional silicon photodiodes. In these components, there is a region of high electric field that accelerates the generated charge carriers so much that secondary charge carriers are formed by impact ionisation.
A photodiode array consists of several silicon photodiodes arranged either in a row sensor or in a two-dimensional array. Photodiode arrays find applications in many fields (laser beam positioning, colour measurement, spectrometry, etc.).
Dual-color detectors contain two different photosensors, with one sensor mounted over the other along the same optical axis. Each is sensitive to a different spectral region and the whole component can thus detect a wide range of radiation.
An array of silicon avalanche photodiodes that operate in the so-called Geiger mode is referred to as an MPPC detector. Its properties make it advantageous for detecting extremely weak signals (single photon counting level).
A PSD is a photodiode with a photosensitive resistive layer in the shape of a strip (1D detector) or a plate (2D detector). Unlike a CCD sensor with discrete elements, it provides continuous position data. PSDs have high spatial resolution and fast response.
Si photodiode modules
Photodiode modules are high-precision photodetectors that integrate a Si photodiode and an I/U amplifier into a single housing. The output of these modules is an analog voltage that can be easily controlled, e.g. with a voltmeter.
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Model
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Photosensitive area
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Spectral response
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Maximum sensitivity
|
|
C10439-01
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2.4 × 2.4 mm2
|
190 to 1100 nm
|
960 nm
|
|
C10439-02
|
5.8 × 5.8 mm2
|
190 to 1100 nm
|
960 nm
|
|
C10439-03
|
10 × 10 mm2
|
190 to 1100 nm
|
960 nm
|
|
C10439-07
|
2.4 × 2.4 mm2
|
190 to 1100 nm
|
960 nm
|
|
C10439-08
|
5.8 × 5.8 mm2
|
190 to 1100 nm
|
960 nm
|
|
C10439-09
|
10 × 10 mm2
|
190 to 1100 nm
|
960 nm
|
|
C10439-10
|
Φ1 mm
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500 to 1700 nm
|
1550 nm
|
|
C10439-11
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Φ3 mm
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500 to 1700 nm
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1550 nm
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Compatible signal processing unit: C10475
MPPC modules
These modules contain the MPPC photon detector together with other components required for its operation (amplifier, compensation circuit, high voltage power supply circuit).
PSD modules
PSD modules integrate a high precision position sensitive detector and a low noise amplifier into one housing.
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Model
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Photosensitive area
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Spectral response
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Maximum sensitivity
|
|
C10443-01
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4 × 4 mm2
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320 to 1100 nm
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960 nm
|
|
C10443-02
|
9 × 9 mm2
|
320 to 1100 nm
|
960 nm
|
|
C10443-03
|
12 × 12 mm2
|
320 to 1060 nm
|
920 nm
|
|
C10443-04
|
12 × 12 mm2
|
320 to 1060 nm
|
920 nm
|
|
C10443-06
|
10 × 10 mm2
|
320 to 1100 nm
|
960 nm
|
Compatible signal processing unit: C10460
