Construction principles and an optical layout have been developed for solid-state diode-pumped lasers based on a two-waveguide slab active element with conductive cooling that allows scaling of the power in the kilowatt range. Prototypes of a two-waveguide diode-pumped Nd:YAG laser with a mean radiation power of up to 1000 W have been investigated. The possibility is discussed of using slab elements made from heat-strengthened neodymium glass to create powerful pulsed-periodic slab lasers.

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