Three-electrode XeC1 laser, based on the use of a double discharge and regime of preliminary electron multiplication, was investigated. Utilization of this method of discharge formation allowed significantly to decrease operating voltage at the main storage capacitor, obtain full matching of the pumping source with a load, and increase laser efficiency up to 3.7%.
The paper describes a three-electrode electric-discharge XeC1 -laser, in which the discharge ignition takes place, when a highvoltage pulse is delivered to a middle control electrode, a capacitor bank of the main discharge is connected directly to two other electrodes. The three-electrode system of a double discharge formation provides a sequential in time breakdown of two discharge gaps followed by a general discharge current The laser reached the high efficiency up to 3.7 % with the fast commutation < 5 % from the pump energy and a significant decrease of the load on the elements of the electric system of the laser power supply.
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