[en] The importance of this work is in avoiding of some difficulties affecting the studies of isotope separation, uranium enrichment, industrial, and medical applications. This was achieved through some methods to improve the energy and bandwidth of the laser output. For this purpose a COT quencher was to deactivate the triplet state and after some work, the optimum operating conditions were, when the concentration of R6G dye was 5x10^-4 mol/1 dissolved in ethanol + methanol with the addition of COT at concentration 0.2 millimole. Building a pulsed dye laser system making a good use of the results obtained from a commercial system to test the efficiency of the constructed one. 15 tabs.; 28 figs.; 78 refs