Generators with inductive energy storage (GIES) are developed for laser application. Discharge and laser parameters in high-pressure gas mixtures are studied. It was shown that the IES generator produces high-voltage pre-pulse and sharp increase of discharge current which allows to form long-lived stable discharge in different gas mixtures. Improve of both pulse duration and output energy was achieved for XeCl-, XeF- and KrF excimer lasers. Maximal at that date radiation power, output energy and laser pulse duration of N2 laser were obtained. Efficient operation on CO2 molecules with high peak power was demonstrated. Ultimate efficiency of HF(DF) non-chain lasers was achieved.© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.