“…Input pulse energy, J 132/54/64 b DKDP thickness, cm 3.8/4.3/4.3 b Input beam diameter, cm 27 Pump beam area, cm 2 25 × 25 Pump energy in input beam diameter, J 3250 Full pump energy, J 3900 OPCPA efficiency a 0.32 Beam area at outputs 4.1-4.12, cm 2 5 × 5 Beam energy a at outputs 4.1-4.12, J 50 of 'cut' beams, either soft diaphragms are used, similar to those described in Refs. [71,72], or mirrors with an inhomogeneous reflection coefficient, or toothed diaphragms [73,74] . The pulse energy density is about 2 J/cm 2 , which makes it possible to use such diaphragms [74] .…”