A new design for a high-power , tail-free, high repetition frequency single mode CO2 laser

A new discharge design for pulsed CO2 lasers has benn made with a series of short longitudinal synchronous discharges working at high pressure with large section. In thsi way single mode high-power ( up to 40KW at 100ns ) tail-free pulses have been obtained at intermediate repetition frequency ( 25Hz) in a He-free mixture dominated by CO2 ( 75-90%).this laser is ideal for producing frequency mixing in non linear crystals