[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. A cold cathode He-Cd laser of high power and long lifetime is reported. Maximum monomode output of over 100 mW has been obtained with a discharge length of 140 to 150 cm. The lifetime is over 3500 hours when the output is 50 mW with a dischage length of 125 cm.[J]. Chinese Journal of Lasers, 1981, 8(8): 54