UM/LabM/UHSM/MicroM Selected Line Infrared Detection Modules

2-12 µm; Active Area 0.0025, 1 mm²; Responsivity ≥5.0x10¹-≥6.5x10⁴ V/W; Detectivity ≥5.0×10⁶-≥2.3×10¹⁰ cm·Hz^1/2/W; Power Supply +5,+9 VDC

Vigo System’s UM, LabM, UHSM and MicroM selected line series of infrared (IR) detection modules integrate the infrared photodetector with signal processing electronics, optics, heat dissipation systems and other components in a common package – resulting in very convenient and user‑friendly devices that can be easily used in a variety of MWIR/LWIR applications.

This integration makes the detectors less vulnerable to over-bias, electrostatic discharge, electromagnetic interference (EMI) and other environmental exposures. Additional advantages of the integration are improved high-frequency (HF) performance, output signal standardization, miniaturization, and cost reduction. Vigo System’s selected product line guarantees a short order fulfillment date and an effective price.

Vigo System offers detection modules with an infrared detector optimized for uncooled operation or for temperatures achievable with Peltier-coolers in the spectral range from 2 µm to 12 μm. IR radiation emitted by an object is concentrated on the active area of an IR detector, generating photoelectric signals which are sensed by the front-end electronics (FEE). The front-end electronics circuitry is typically used to:

• Provide optimum conditions for the operation of IR detectors (to achieve high sensitivity, fast response, and a wide dynamic range. This is typically achieved with optimized constant voltage bias and current mode of the photoelectric signal readout.)
• Protect detector elements against overbias
• Amplify the signal within the required frequency band. This could be done with a minimized contribution of the preamplifier noise to the resulting noise of the detection module.

In addition to front-end electronics, detection modules may include additional electronic blocks for signal conditioning, such as gain blocks, filters, thermoelectric cooler controllers, analog-digital converters (ADC) and other components. Except for MicroM, these IR detection modules feature 3° wedged zinc selenide anti-reflection coated windows preventing unwanted interference effects.

Vigo System’s UM series features universal „all-in-one” 3.0 µm to 6.7 μm and DC to 1 MHz (UM-I-6) as well as 2 µm to 12 μm and DC to 70(100) MHz (UM-(I-)10.6) HgCdTe IR detection modules. A thermoelectrically cooled (for some models optically immersed) photovoltaic detector, based on HgCdTe heterostructure, is integrated with a transimpedance, DC-coupled preamplifier, a fan and a thermoelectric cooler controller in a compact housing.

Vigo System’s LabM series of programmable detection modules enable control of many parameters, such as bandwidth and gain, even during normal operation. This opens up completely new possibilities to designers of measuring systems. In a fully analogue input circuit, many switching elements are used, even with a variable, digitally-controlled capacitance to compensate the transimpedance input stage.

Within the LabM series, 3.0 µm to 7.5 μm and over 200 MHz (LabM-I-6) and 2 µm to 12 μm and DC to 100 MHz (LabM-I-10.6 ) HgCdTe programmable, laboratory IR detection modules are available, with optically immersed photovoltaic detectors based on HgCdTe heterostructure, integrated with a transimpedance, programmable preamplifier.

Vigo System’s UHSM series of convenient and user‑friendly ultra-high-speed detection modules aims at LWIR applications requiring high-time-resolution or high-frequency-bandwidth optical detection. Electronics and mechanics have been designed specifically to support the propagation of high-speed signals.

Within the UHSM series, 3 µm to 12 µm and over 1 GHz (UHSM-10.6) or 700 MHz (UHSM-I-10.6) HgCdTe ultra high speed „all-in-one” IR detection modules are available. Thermoelectrically cooled, photovoltaic detectors (optically immersed for UHSM-I-10.6), based on HgCdTe heterostructure, are integrated with a transimpedance, AC coupled preamplifier, a fan and a thermoelectric cooler controller in a compact housing.

Vigo System’s MicroM is a micro-size detection module with uncooled photovoltaic multiple junction detector. It is optimized for operation in the spectral range from 2 μm to 12 μm and frequency bandwidth from DC to 10 MHz. It is easy to assemble in space-limited measuring systems for long wavelength infrared (LWIR) applications.

Key Features:

• Very High Performance and Reliability
• Integrated TEC Controller and Fan (UM, UHSM)
• Very Small Size (MicroM)
• Single Power Supply: +5 VDC, +9 VDC
• DC Monitor (UM, SHSM)
• DC Offset Compensation (LabM)
• Parameters Configurable by the User (LabM): Output Voltage Offset; Gain (in 40 dB Range); Bandwidth (1.5 MHz/15 MHz/200 MHz); Coupling AC/DC; Detector’s Parameters (Temperature, Reverse Bias etc.)
• Sensitive to IR Radiation Polarization (UM(-I)-10.6, ) LabM-I-10.6, MicroM)
• Optimized for Effective Heat Dissipation
• Wide Frequency Bandwidth Over 1 GHz (UHSM)
• Compatible With Optical Accessories
• Cost-effective OEM Version Available
• Universal, Versatile & Flexible, Convenient to Use
• Fast Delivery
• Active Element Material: Epitaxial HgCdTe Hetereostructure
• Active (Optical) Area: 1x1 mm², 0.05x0.05 mm²
• Cut-on Wavelength λcut-on (10%): ≤2.0 to 3.0 μm
• Peak Wavelength λpeak: 5.2 to 9.5 μm
• Optimum Wavelength λopt: 6.0 to 10.6 μm
• Cut-off Wavelength λcut-off (10%): 6.7 to 12.5 μm
• Detectivity D*: ≥1.50x10⁷ to ≥2.3×10¹⁰ cm·Hz^1/2/W (λpeak), ≥5.0×10⁶ to ≥1.5×10¹⁰ cm·Hz^1/2/W (λopt)
• Output Noise Density vn (100 kHz): ≤70 nV/Hz^1/2 to ≤400 µV/Hz^1/2
• Voltage Responsivity Rv: ≥1.2x10² to ≥6.5x10⁴ V/W (λpeak), ≥5.0x10¹ to ≥3.6x10⁴ V/W (λopt)
• Low Cut-off Frequency flo: DC to 300 Hz
• High Cut-off Frequency fhi: ≥1 MHz to ≥1.0 GHz
• Infrared Windows: None, wZnSeAR
• Acceptance Angle Φ: ~36° to ~85°

Applications: Leak Detection; Gas Detection, Monitoring and Analysis (CO, CO2, NH3, NOx); CO2 Laser Measurements; Laser Power Monitoring & Control; Laser Beam Profiling & Positioning; Laser Calibration; Characterization of Pulsed Laser Sources; Flue Gas Denitrification; Fuel Combustion Monitoring at Power Plants and Other Industrial Facilities; Breath Analysis; Explosion Prevention; Contactless Temperature Measurement & Control; Semiconductor Manufacturing; Glucose Monitoring; Dentistry; Dual-comp Spectroscopy; Heterodyne Detection; LIDAR; Object Scanners; Time-resolved Fluorescence Spectroscopy; Free-space Optical Communication