HgCdTe (MCT) Four-Channel Detection Module

QM-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.

See specification

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
Cut-on wavelength λcut-on (10%) µm
3.0±1.0
Peak wavelength λpeak, µm
8.0±2.0
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
Detectivity D*(λopt), cm⋅Hz1/2/W
≥4.5×106
Output noise density vn(100 kHz), μV/Hz1/2
≤4.5
Electrical parameters
Voltage responsivity Rvpeak, RL = 1 MΩ*)), V/W
≥2.2×102
Voltage responsivity Rvopt, 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
Power supply voltage Vsup, V
+7.5
Power consumption, W
max 6
Other information
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)

QM-10.6-2

Mechanical layout, mm

QM-10.6-1

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