长寿命CO_2激光器

实验证明,要获得长寿命的 CO_2激光器的主要措施有:(1)杜绝慢性漏气;(2)电极材料的选择及氧化处理;(3)减少 CO_2:分子的分解。我们的做法是:激光管不经烘烤,并附加水蒸气,电极材料均经真空除气且充氧氧化,在采用纯银电极、气体组分分别为(1)CO_2-N_2-He-Xe-H_2O;(2)CO_2-CO-He-Xe-H_2O;(3)CO_2-N_2-CO-tte-Xo-H_2O 时,运转寿命分别达(1)10476小时;(2)9185小时(仍在运转);(3)9207小时(仍在运转)。而采用纯镍电极,气体组分为 CO_2-N_2-He-Xe-H_2O,运转寿命达1644小时。

A long life-time CO2 laser

It is shown experimentally that three major factors must be considered to obtain a CO2 laser with long life-time.They are:1)elimination of slow gas leakage,2)selection and oxidation of electrode material,3)decreasing the decomposition of CO2 molecules.We have done in the following ways:laser tube is not dried but filled with water vapor,the electrode material must be degassed in vacuum and oxidized by filling oxygen gas.When pure silver electrode is employed,gas mixtures constitutions of 1)CO2-N2-He-Xe-H2O,2)CO2-CO-He-Xe-H2O,3)CO2-N2-CO-He-Xe-H2O, the operation life-times are respectively 1)10,476 hours,2)9185 hours(still in operation),3) 9207 hours(still in operation);while pure nickel electrode is used with CO2-N2-He-Xe-H2O gas mixture,operation life-time is only 1644 hours.