Investigation of a laser utilizing self-terminating transitions in europium atoms and ions

An investigation was made of the time and energy characteristics of a self-terminating (cyclic) gas laser utilizing europium atoms and ions and operating in a periodic self-heating regime. The active medium was excited by a system based on the Blumlein circuit. The total average radiation power due to atomic transitions was 1.95 W at the optimal (ν=10 kHz) pulse repetition frequency in a tube 2 cm in diameter and 46 cm long. The total average radiation power of the ionic lines was ~10 mW (for the same repetition frequency).