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High power mid-IR laser, with fixed wavelength and narrowband / broadband output


DRS Daylight Solutions

The Aries-2 series is a family of high power mid-IR lasers, with fixed wavelength, and an average output power of up to 1 W. The Aries-2 laser has an extremely robust and stable resonator structure providing users with superb linewidth control and wavelength stability, especially as environmental conditions vary. With a wide selection of quantum cascade laser chips available, Aries-2 can be factory-configured to suit different application needs.

Aries-2 high power mid-IR laser systems include a SideKick™ laser controller, which gives you flexible, precise control of laser output power, temperature, and pulse parameters.

Features & Benefits

  • Optical power up to 2 W
  • Wavelength availability: 3-13 µm
  • CW* or pulsed output
  • Linewidths of < 1 cm-1 (pulsed, FWHM) or < 100 MHz (CW, tuned to SLM) Output power* to > 1 W (peak) or > 0.5 W (average)
  • Superior TEM00 beam quality and low beam pointing allows fibre coupling
  • Superb wavelength stability: ≤ 0.5 cm-1/hr within operating temperature range
  • High power stability: < 2% rms (1 hr)
  • Current (amplitude) modulation up to 1 MHz
  • SideKick™ controller, GUI, and SDK included with all systems
  • Proprietary HFQD™ circuitry protects your chips
* Requires suitable chip(s)



  • Imaging
  • Illumination
  • LIDAR and DIAL systems
  • Standoff detection
  • Environmental monitoring
  • TIC, VOC, GHG, and leak detection
  • IRCM research
  • Materials characterisation
  • Optical fibre testing
  • OPA/OPO seeding
  • Detector calibration
Operation Mode Pulsed or CW
Centre Wavelength Availability 4-11 μm*
Spatial Mode TEM00 (nominal)
Beam Divergence < 4 mrad**
(full angle, 1/e² intensity width)
Beam Diameter < 5 mm²
(1/e² intensity width)
Ellipticity < 1.5
Pulse Repetition Frequency CW to 1 MHz
Rise/Fall Time (10-90%) < 100 ns
QCL Compliance Voltage < 17 VDC
QCL Operating Current < 3 A
Operating Range (Case Temp) 15 – 55 °C
Dimensions (L x W x H) 14 x 7 x 8.6 cm
Performance Examples
Centre Wavelength Optical Power
4.0 μm 1.0 W
4.6 μm 2.0 W
8.7 μm 1.0 W
10.5 μm 0.3 W
* Call for specific wavelength availability.
** Measured at 4 μm; scales with wavelength – please enquire.
Forced air and liquid cooling accessories required for higher duty cycles.
Water cooling required for CW operation or pulsed duty cycles > 5%.
Aries-2 Datasheet

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Ask the Expert

If you’re interested in the products shown here, or have questions about something you can’t find on our website, please get in touch through the form below.

Our knowledgeable sales team will be happy to help. We can normally source exactly what you need, or work with you to come up with custom solutions.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to the Photonics team.


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