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.
B. G. Malinin, A. A. Mak, V. M. Volynkin, K. V. Gratsianov, A. S. Eremenko, V. M. Mit'kin, V. G. Pankov, V. A. Serebryakov, V. I. Ustyugov, S. A. Chizhov, and V. E. Yashin, "A kilowatt, two-waveguide slab laser," J. Opt. Technol. 70, 905-907 (2003)