电弧涂层螺旋电极无声共振放电二氧化碳激光器

研制成功了共振逆变器激励无声放电快速轴流二氧化碳激光器，其电极是以电弧涂层法制作，覆盖于石英放电管的外壁。电极几何形状采用了平行和螺旋等方式，实验证明螺旋电极比平行电极的放电更为均匀，输出也较高。此激光器以ＣＯ２：Ｎ２：Ｈｅ＝１：１７：２的混合气比及５ｋＰａ的氧压操作，输出２２５Ｗ功率时能量转换效率８％。

Arc Sprayed Helical Electrodes Resonant Silent Discharge CO_2 Laser

A type of fan axial flow CO2 laser based upon resonant silent discharge has beendeveloped successfully.Its electrodes were arc sprayed on the surface of fused silicadischarge tubes,and.the discharge was sustained by a resonant inverter tuned at about 100kHz. The sprayed electrodes proved excellent adhesion, and the belieal ones offered verygood discharge uniformity. When operated at 5 kPa gas pressured and CO2:N2: He= 1:17:2 mixing ratio, the output of this laser was 225 W with 8% wall plug efficiency.Thevery high and low contents of N2 and He in the mixed gas made this laser different fromothers.