High-power, continuous frequency tunable TE CO2 laser

Abstract
A continuously tunable TE CO2 laser is described, whose frequency tunable ranges of 16 cm−1 in the P-branch and 14 cm−1 in the R-branch of 9.6 μm band were obtained with a single line energy of about 400 mJ/pulse. This large output was realized by decreasing the intracavity laser power illuminating the optical components used due to the increase in discharge width. A grid-type, UV-preionized TE CO2 laser using a cable PFN was scalable and able to decrease optical damage of components.