Mid-Infrared Lasers

Middle Infrared lasers (2-5 µm) are in great demand for a variety of applications including plastic and polymer processing, spectroscopy, non-invasive medical diagnosis, laser scalpel, remote sensing, free space communications and pumping OPOs. Numerous defense related applications include countermeasures, stand-off detection of explosion hazards, eyesafe seekers for smart munitions, and covert communications systems. Lasers based on IPG’s TM:ZnSe/S crystals are the sources of choice when one needs a system that is compact, efficient, robust, powerful, and continuously tunable over a broad spectral range.

IPG's single-frequency, broadly-tunable mid-IR lasers now deliver an ultra-narrow output linewidth of just a few hundred kHz. The standard linewidth specification is now <1 MHz.

Contact IPG Photonics for more information

Main Features:

  • Broadly Tunable
  • Compact
  • Cost effective
  • Efficient
  • Powerful
  • Robust

Mid-Infrared Product Line

Model SFTL-Cr-ZnSe-2300-1000


Mid-Infrared Gain Materials
TM: ZnSe/S Series

 Uniformly-doped 5 x 5 x 20 mm Cr:ZnSe Crystals

Passive Q-Switches
Co2+ :ZnS, Cr2+:ZnS and Cr2+:ZnSe                                           

Samples of Cr2+:ZnS, Cr2+:ZnSe and Co2+:Zns Saturable Absorbers



Passive Q-Switches
Fe2+:ZnSe and Fe2+:ZnS

Samples of Fe2+:ZnSe Single and Polycrystalline Saturable Absorbers


Single-frequency Broadly Tunable Mid-IR Lasers
SFTL Series

Model SFTL-Cr-ZnSe-2300-1000


High Power Tunable Single-Frequency Mid-IR Lasers

Model HPSFTL-Cr-ZnSe-2400-10

High Power Narrow Linewidth Tunable Mid-IR Lasers
HPTLM Series

Model HPTLM-Cr-ZnS/Se-2400-3000

Rapidly Tunable Mid-IR Lasers
RTLM Series

Model HPTLM-Cr-ZnS/Se-2400-3000


Fixed Frequency Mid-IR Lasers
FFML Series 

Model FFML-Cr-ZnS/Se-2250-5000


Q-Switched Fiber-Bulk Hybrids

Model PQSFBH-Ho-YAG/2100-50