HgCdTe (MCT) Detection Module

2.4 – 4.3 µm, over 5 MHz, with optically immersed photovoltaic detector

LabM-I-4 is a laboratory IR detection module with optically immersed photovoltaic detector based on HgCdTe heterostructure, integrated with transimpedance, programmable preamplifier. 3° wedged sapphire window prevents unwanted interference effects. For proper operation programmable „smart” VIGO thermoelctric cooler controller PTCC-01 (sold separately) and Smart Manager Software (freeware) are required. LabM-I-4 module comes complete with PTCC-01 and Smart Manager is the best solution for prototyping and R&D stage in a variety of MWIR applications. This set provides flexible approach to different needs of system designers.

Spectral response (Ta = 20°C)


  • High performance and reliability
  • DC offset compensation
  • Configurable bandwidth (1.5 MHz / 5 MHz)
  • Coupling AC/DC
  • Compatible with optical accessories
  • Versatility and flexibility
  • Quantity discounted price
  • Fast delivery


  • Gas detection, monitoring and analysis (CH4, C2H2, CH2O, HCl, NH3, SO2, C2H6)
  • Breath analysis
  • Explosion prevention
  • Flue gas denitrification
  • Emission control (exhaust fumes, greenhouse gases)

Specification (Ta = 20°C, default module settings)

Typical value
Optical parameters
Cut-on wavelength λcut-on (10%) µm
Peak wavelength λpeak, µm
Optimum wavelength λopt, µm
Cut-off wavelength λcut-off (10%) µm
Detectivity D*(λpeak), cm⋅Hz1/2/W
Detectivity D*(λopt), cm⋅Hz1/2/W
Output noise density vn(10 MHz), nV/Hz1/2
Electrical parameters
Voltage responsivity Rvpeak), V/W
Voltage responsivity Rvopt), V/W
Low cut-off frequency flo, Hz
DC/10 (adjustable)
High cut-off frequency fhi, Hz ≥5M (adjustable)
Output impedance Rout, Ω 50
Output voltage swing Vout, V 1  (RL = 1 MΩ*))
Output voltage offset Voff, V
max ±20
Other information
Active element material
epitaxial HgCdTe heterostructure
Optical area AO, mm×mm
Acceptance angle, Φ
Ambient operating temperature Ta, °C
10 to 30
Signal output socket
Power supply and TEC control socket
LEMO (female) ECG.0B309.CLN
Mounting hole
*) RL – load resistance

Mechanical layout, mm

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