MIRcat Mid-IR Laser

Peak velocities up to 30,000 cm-1/s

The MIRcat adds high-speed tuning, higher spectral repeatability, improved thermal management, and longer-wavelength options to the first generation of the MIRcat laser, a field-proven multi-quantum cascade laser system. The MIRcat is truly a one-box, fully automated system with a flexible, modular design that allows factory configuration of up to four pulsed or continuous wave/pulsed modules, plus the option to add or upgrade modules later. The MIRcat offers a tuning range approaching 1000 cm-1 (> 6 µm) and wavelength coverage to > 13 µm. It also delivers unmatched, industry-leading performance in critical areas like peak tuning speeds of > 30,000 cm-1/s, output power up to 1 W, and TEM00 beam quality to enable high-efficiency fiber coupling. A new, higher-precision tuning mechanism and lower-noise drive electronics provide wavelength repeatability as high as < 0.1 cm-1 and CW RIN as low as -140 dBc/Hz.


Features & Benefits:

  • Wavelength availability: 3-13 µm
  • Tune up to 1000 cm-1 speeds up to 5000 cm-1/s
  • CW* or pulsed output (up to 3 MHz/30% duty)*
  • Ultra-quiet CW: RIN as low as -140 dBc/Hz
  • Superb TEM00 beam quality and low beam pointing allows fiber coupling
  • High output power for high SNR*: to > 1 W (peak) and > 0.5 W (average)
  • GUI and SDK command sets included
  • Proprietary HFQD circuitry protects your chips

*Requires suitable chip(s).


  • Standoff detection
  • Process control
  • Atmospheric research
  • Nanoscale imaging and spectroscopy
  • TICVOC, and GHG chemical and biological agent detection
  • Combustion diagnostics
  • Biomedical diagnostics
  • Imaging
  • Photoacoustic spectroscopy


Product Specifications

Wavelength Availability Module options covering from < 4 µm to > 13 µm
Max. Tuning Speed (Step)  250 ms step-and-settle time to arbitrary λ
Modes of Operation Pulsed or CW
Max. Tuning Speed (Scan) Peak velocity to > 30,000 cm-1/s
Available Configurations  Select 1, 2, 3 or 4 laser modules
Wavelength Accuracy ≤ 1 cm-1
Example Configurations  MIRcat-2400-PX-A (Pulsed, 6.5—12.4 µm)
MIRcat-2400-PX-B (Pulsed, 5.5—11 µm)
MIRcat-2400-PCX-B (CW/Pulsed, 6—11 µm)
Average Power Stability < 3% (1 hr)
Tuning Modes Set λ, Step & Measure, Continuous Scans
Spatial Mode TEM00 (nominal)
Beam Divergence < 4 mrad at 4 µm (full angle, 1/eintensity width)
Beam Pointing Stability  < 2 mrad (beam centroid change)
Spot Size < 2.5 mm (1/e2 intensity radius)
Polarization Linear, vertical, > 100:1

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