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1 September 1991 Parametric study of a high-average-power XeCl laser
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Proceedings Volume 1503, Excimer Lasers and Applications III; (1991) https://doi.org/10.1117/12.46960
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands
Abstract
A wide-aperture, x-ray preionized discharge pumped XeCl laser is described. The laser head is included in a gas circulation loop. The x-ray generator is made of a secondary emission electron gun. The x-ray pulse duration is 400 ns (FWHM). The laser energy (EL) and the average power are given as a function of various parameters: charging voltage (Vc), buffer gas pressure (PL), total capacitance (CT), the interelectrode distance (d), and the repetition rate. The laser discharge is driven by a classical LC-inversion circuit. The stored energy (ES) in the capacitor bank is CTxVc2/2 and the efficiency is defined by EL/ES. Up to a repetition rate of 50 Hz, the laser energy per pulse remains almost constant, with low fluctuations. The best efficiency, for different pressures, is obtained for the same Vc/PLxd value. The optimal buffer gas pressure decreases with an increase of the total capacitance. More than 4.5 J per pulse, single shot, have been extracted from a 40 X 5.8 X 4 cm3 discharge (efficiency equals 1%). At a lower laser energy level (2.5 J), the maximum efficiency reaches 2.5%. An average output power of 175 W has been obtained. With this device, good preliminary results on Kr/F2/Ne mixture are given.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bruno Godard, Emmanuel Estocq, Franck Joulain, Pierre Murer, Marc X. Stehle, Jean C. Bonnet, and Daniel R. Pigache "Parametric study of a high-average-power XeCl laser", Proc. SPIE 1503, Excimer Lasers and Applications III, (1 September 1991); https://doi.org/10.1117/12.46960
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