MIRcat Mid-IR Laser: Advanced high-speed spectral performance

The first iteration of the MIRcat laser is a field-proven multi-quantum cascade laser system that gains enhanced heat management, higher spectral repeatability, high-speed tuning, and longer wavelength possibilities with the MIRcat.

A true one-box, fully automated system, the MIRcat features a flexible, modular architecture that enables up to four pulsed or continuous wave/pulsed modules to be configured at the factory, with the flexibility to add or modify modules at a later time. The wavelength coverage of the MIRcat extends to >13 µm, with a tuning range approaching 1000 cm-1 (>6 µm).

Furthermore, it offers unparalleled, state-of-the-art performance in crucial domains such as peak tuning speeds exceeding 30,000 cm-1/s, output power exceeding 1 W, and TEM00 beam quality to facilitate high-efficiency fiber coupling. Wavelength repeatability as high as <0.1 cm-1 and CW RIN as low as -140 dBc/Hz are made possible by new, higher-precision tuning mechanisms and lower-noise drive electronics.


Features and benefits

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


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

Product specifications

Source: Daylight Solutions Inc.

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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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