The effects of the insertion of a CW, low-pressure CO2 laser into a TEA CO2 laser cavity

Abstract The single mode performances of a CW-TEA (double discharge) CO 2 hybrid laser are reported. Single longitudinal and single transverse mode emission have been obtained in the short laser pulse regime (200 mJ, 150 ns fwhm) and in the long laser pulse regime (70 mJ, 2.5 μsec fwhm) on at least 30 lines of both the 10.6 μm and 9.6 μm bands in a far field, diffraction limited, half angle of divergence of 1.11 mrad.