Difference Frequency Generation leverages telecom technology by combining two commodity DFB lasers and a non-linear crystal to reach the spectroscopically important "fingerprint regions" of the C-H stretch at 3.3 microns.

Now, you can have a turnkey, mid-infrared  laser system in the 3.2-3.6 micron range without cryogens in your lab: see our commercially available Iris™ Difference Frequency Laser system .