高圧力封じ切りcw CO2レーザーの出力特性
1981 年 50 巻 1 号 p. 41-49
詳細
1981 年 50 巻 1 号 p. 41-49
Power characteristics of a cw electric-discharge convective-cooled CO2 laser, operated at high pressure (70_??_200 Torr) sealed-off condition were obtained. The dependence of smallsignal gain and saturation intensity on pressure and gas species were investigated on the basis of the experimental results.
It is found that N2 and He are both essential for the CO2 laser of this type and a partial exchange of He for Ar can be made without any reduction of efficiency. It enables us to reduce consumption of expensive He gas.
Glow discharge tends to be unstable when N2 and/or Ar addition ratio increase. However, it is shown that N2 and Ar increase saturation intensity and small signal gain respectively.
