LabM-I-4

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.

DATASHEET

Spectral response (Ta = 20°C)

Features

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

Applications

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)

Parameter	Typical value
Optical parameters
Cut-on wavelength λ_cut-on (10%) µm	2.4±0.5
Peak wavelength λ_peak, µm	3.5±0.5
Optimum wavelength λ_opt, µm	4.0
Cut-off wavelength λ_cut-off (10%) µm	4.3±0.3
*Detectivity D(λ_peak), cm⋅Hz^1/2/W**	≥2.0×10¹⁰
*Detectivity D(λ_opt), cm⋅Hz^1/2/W**	≥1.2×10¹⁰
Output noise density v_n(10 MHz), nV/Hz^1/2	≤300
Electrical parameters
Voltage responsivity R_v(λ_peak), V/W	≥3.5×10⁴
Voltage responsivity R_v(λ_opt), V/W	≥2.3×10⁴
Low cut-off frequency f_lo, Hz	DC/10 (adjustable)
High cut-off frequency f_hi, Hz	≥5M (adjustable)
Output impedance R_out, Ω	50
Output voltage swing V_out, V	1 (R_L = 1 MΩ^*))
Output voltage offset V_off, V	max ±20
Other information
Active element material	epitaxial HgCdTe heterostructure
Optical area A_O, mm×mm	1×1
Window	wAl₂O₃
Acceptance angle, Φ	~36°
Ambient operating temperature T_a, °C	10 to 30
Signal output socket	SMA
Power supply and TEC control socket	LEMO (female) ECG.0B309.CLN
Mounting hole	M4
Fan	yes
^*) R_L – load resistance

LabM-I-4

HgCdTe (MCT) Detection Module

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

Spectral response (Ta = 20°C)

Features

Applications

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

Parameter

Typical value

Mechanical layout, mm

Related documents