Line tunable CO2 lasers are used for spectroscopy, interferometry and far IR laser pumping. In order to provide discreet lines ACCES LASER COMPANY uses different laser models.
The simplest version is line stabilized by changing the resonator length. Depending on the laser output, the temperatur and the resonator length, this method only provides acces to a few lines.
Far more lines are available with the grating tuned versions. Due to the use of a high definition dispersive element, depending on the model up to 50 lines and more can be selected.
The additional line tracker provides even greater line stability.