[en] The paper reports the research progress in all-solid-state high power green laser. The intracavity frequency-doubled green laser adopts the two-rod L-shaped cavity. When the pumping power is 1 174 W, the 532 nm output power is 186 W and the optical-optical efficiency is 15.8% with LBO frequency-doubling crystal. A diode pumped master oscillator power amplifier laser with output pulse energy of 1.2 J at 400 Hz repetition rate is demonstrated. With a type II phase matched KTP crystal, 525 mJ green light pulse energy at 400 Hz repetition rate is obtained. The frequency conversion efficiency is about 43.7%. The laser energy of the double beam laser is more than 1 J with the technique of polarization synthesis. Moreover, a 90 degree quartz rotator is placed between the two laser modules to fulfill thermal-induced birefringence compensation of laser media, and a specially designed large aperture tapered fiber as a solid state phase conjugation mirror is used in the power amplifier to improve beam quality. (authors)