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HgCdTe (MCT) Four-Channel Detection ModuleQM-10.6
3.0 – 12.0 µm, DC – 1 MHz, with photovoltaic quadrant geometry multiple junction detector
QM-10.6 is „all-in-one” position IR detection module. Uncooled photovoltaic multiple junction quadrant geometry detector, based on HgCdTe heterostructure, is integrated with transimpedance, DC coupled four-channel preamplifier. It is designed to accurately measure the displacement of an incident beam relative to the calibrated center. This device is ideal for measuring the movement of a beam, the distance traveled, or as feedback for alignment systems.
Features
Four channels
Low crosstalk
Single power supply
Sensitive to IR radiation polarisation
Compatible with optical accessories
Applications
CO2 laser (10.6 µm) measurements
Laser power monitoring and control
Laser beam profiling and positioning
Laser calibration
Specification (Ta = 20°C)
Parameter |
Typical value |
|
|
Optical parameters
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Cut-on wavelength λcut-on (10%) µm
|
3.0±1.0 | |
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Peak wavelength λpeak, µm
|
8.0±2.0 | |
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Optimum wavelength λopt, µm
|
10.6 |
|
|
Cut-off wavelength λcut-off (10%) µm
|
12.0±1.0 | |
Detectivity D*(λpeak), cm ⋅Hz1/2/W |
≥1.0×107
|
|
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Detectivity D*(λopt), cm
⋅Hz1/2/W |
≥4.5×106
|
|
|
Output noise density vn(100 kHz), μV/Hz1/2
|
≤4.5
|
|
|
Electrical parameters
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| Voltage responsivity Rv(λpeak, RL = 1 MΩ*)), V/W |
≥2.2×102
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|
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Voltage responsivity Rv(λopt, RL = 1 MΩ*)), V/W
|
≥1.1×102
|
|
|
Low cut-off frequency flo, Hz
|
DC |
|
| High cut-off frequency fhi, Hz | ≥1M | |
| Output impedance Rout, Ω | 50 | |
| Output voltage swing Vout(RL = 1 MΩ*)), V | 0 – 4 | |
|
Output voltage offset Voff, V
|
max ±20 | |
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Power supply voltage Vsup, V
|
+7.5 |
|
|
Power consumption, W
|
max 6 | |
|
Other information
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Active elements material
|
epitaxial HgCdTe heterostructure | |
|
Active areas A, mm×mm
|
4×(1×1) | |
|
Distance between active elements, mm
|
0.15±0.1 | |
|
Window
|
none | |
|
Acceptance angle, Φ
|
~70° | |
|
Ambient operating temperature Ta, °C
|
10 to 30 | |
|
Signal output sockets
|
4×MCX | |
|
Power supply socket
|
DC 2.1/5.5 | |
|
Mounting hole
|
M4 | |
|
Fan
|
yes | |
| *) RL – load resistance | ||
Spectral response (Ta = 20°C)
Mechanical layout, mm
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Application notes
Temperature sensor characteristics
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