In KAIST, Kumgang laser is being developed for demonstration of the kW level coherent beam combination using
stimulated Brillouin scattering phase conjugation mirrors. It will combine 4 modules of DPSSL rod amplifier which
produces 1 kW output power. It is composed of the single frequency front-end, pre-amplifier module, and main amplifier.
The output powers of the pre-amp and main amplifier module are 200 W (20 mJ @ 10 kHz / 10 ns) and 1.07kW (107 mJ
@ 10 kHz / 10 ns), respectively.