Effects of pulverized Mg powders on pyrotechnic pumping source

In order to increase the pumping efficiency of pyrotechnically pumped laser, a method was presented to increase the burning rate and improve the irradiance ability of pyrotechnic agent. The new compositions were designed to replace Al-Mg alloy powders by pulverized Mg powders partially. When mass ratio between Mg and Al-Mg was 1∶1, 2.1 times burning rate and 2.4 times radiant intensity were achieved for poles, 2.4 times burning rate and 2.55 times radiant intensity were achieved for pellets, and the spectrum efficiency of poles and pellets were improved ratherish. A model was built to analyze burning rate after detonation. Calculational results according to the model were that, 2.3 times burning rate than that of Al-Mg powder as the reducing agent was achieved when mass fraction of Mg was