Effect of hydrogen on the average output power of the UV Cu/sup +/ Ne-CuBr laser

The effect of different additives-air, synthetic air, N/sub 2/, O/sub 2/, CO/sub 2/, He, Ar, Xe, and H/sub 2/, to the neon buffer gas on the average output power of a UV Cu/sup +/ Ne-CuBr is investigated. It is found that the addition of small amounts of hydrogen, 0.02-0.04 torr, leads to an increase by more than twice of the average output power for simultaneous laser oscillation at the five Cu/sup +/ lines-248.6, 252.9, 259.7, 260.0, and 270.3 nm.