Fig. 1. Schematic of the general layout of the laser driver with its target chamber. (a) Arrangement of laser beam, which is injected at the front end (FE) with an initial energy of 5 J, reflected at the Pockels cell (PC) with an amplified energy of 1.5 kJ, amplified in the main amplifier and filtered by the laser filters (LAF), and finally delivered at the spatial filter (SF) with an energy of 20 kJ and a beam size expansion from 260 mm to 530 mm. (b) Beamlet of four beams at 3ω. (c) Octahedral spherical Hohlraum and its ideal laser arrangement with 16 beamlets per end. The human figure to the left of (b) shows the scale of the laser driver.