Fig. 1. Two kinds of SBS-PCM phase-locking laser beam combining methods

Fig. 2. N.G. Basov coherent beam combining of two vertically polarized pump beams^[31]

Fig. 3. Diagram of Kumgang-4 kW coherent beam combining laser system^[39]

Fig. 4. Diagram of Brillouin enhanced four-wave mixing principle^[40]

Fig. 5. Brillouin-enhanced four-wave mixing phase-conjugating system^[31]

Fig. 6. Schematic diagram of the four-beam optical coherent beam path with output near- and far- field distribution measurements at LLNL, USA^[42]

Fig. 7. Schematic diagram of Raman amplification process in plasma^[45]

Fig. 8. Eight-beam laser beam combining in plasma experiment at LLNL, USA^[56]

Fig. 9. Schematic diagram of the 21 cross beam energy transfer experiment by R. K. Kirkwood et al^[58]

Fig. 10. Four-color front-end system optical path diagram^[62]

Fig. 11. Raman amplification-based diamond laser beam combining at Macquarie University, Australia^[66]

Fig. 12. Schematic diagram of the non-collinear SBS amplification process of hundreds-picosecond pulse with active frequency compensation^[75]

Fig. 13. Design of a repetitive-rated hundred-joule level laser system based on SBS amplification laser beam combining technology^[76]