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We investigate a theoretical model to accurately predict the output performances of slab laser amplifiers, which is one of the key issues in the study of space-based lasers.The realistic absorbed pump energy density,which induces nonuniformity of stored energy density in the laser medium,is introduced into the model.Using this model,the amplification performances of two space-based laser amplifiers with different pump configurations are compared.The results indicate that the bounce-pumped amplifier(BPA) achieves much higher output energy and efficiency compared with the side-pumped amplifier(SPA);it is also more suitable for space-based lasers.
We investigate a theoretical model to precisely predict the output performances of slab laser amplifiers, which is one of the key issues in the study of space-based lasers. The realistic absorbed pump energy density, which induces nonuniformity of stored energy density in the laser medium , is introduced into the model. The use of this model, the amplification performances of two space-based laser amplifiers with different pump configurations are compared. the results that indicate that the bounce-pumped amplifier (BPA) achieves much higher output energy and efficiency compared with the side-pumped amplifier (SPA); it is also more suitable for space-based lasers.