Continuously tunable high-pressure RF-excited CO2waveguide laser

The design and frequency tuning characteristics of a pulsed RF-excited CO
2
waveguide laser operating at 10 atm are reported. Continuous tunability has been obtained over a 300 GHz wide spectral range from the
R(12)
to the
R(26)
line in the 10.4 μm band. The laser output has good temporal and spectral characteristics.