Efficient gas lasers pumped by double-discharge circuits with semiconductor opening switch

• Published in: Progress in quantum electronics 2012-01, Vol.36 (1), p.143-193
• Main Authors: Panchenko, Alexei N., Tarasenko, Victor F.
• Format: Article
• Language: English
• Subjects: Circuits; Discharge; Efficient gas lasers; Excitation; Gas lasers; Gas mixtures; Generators; Inductive energy storage; Semiconductor opening switch; Semiconductors; Switches
• ISSN: 0079-6727; 1873-1627
• DOI: 10.1016/j.pquantelec.2012.03.005

A review of applications of double-discharge circuits based on generators with inductive energy storage (IES) and semiconductor opening switches (SOS) for efficient excitation of different gas lasers is presented. Using a pre-pulse-sustainer circuit technique based on inductive energy storage and semiconductor opening switch generators allows the formation of a pre-pulse with high amplitude and short rise-time and provides a sharp increase of discharge current which significantly improves discharge stability and life-time of the volume discharge in gas mixtures containing halogens. A pre-pulse with high pumping power forms a high-density discharge plasma and an inversion population in gas mixtures under study within ∼10ns and provides both early onset of lasing and conditions for efficient excitation of an active medium from the storage capacitor. As a result, pulse duration, output energy and efficiency of the lasers under study were improved.