Contamination control for high-power solid-state laser driver and improvement of cleanliness in slab amplifiers

The contamination control method covering the whole process of laser driver construction is proposed to ensure the safe operation of high-power solid-state laser driver. The technical means for improving cleanliness level including high pressure washing, cleanliness detection and protection are described, and a technical approach is proposed for improving cleanliness of the slab amplifiers of SG-Ⅲ laser driver. The illuminating cleaning experiment by flashlamp light is introduced. The results indicate that the cleanliness of SG-Ⅲ laser driver is close to NIF, and better than other similar devices.