In order to improve the protective effect

Technology of green laser pointer is more advanced and complicated.
Laser medium for the diffusion bonding Yb: YAG / of YAG crystals, the middle is the size of the F 4 × 80 mm, doped with atomic number fraction of 0.6% Yb: YAG, both ends of the bond F a 6 mm white of YAG crystal total length of 128 mm, face and cut a small wedge angle in order to prevent parasitic oscillation. When the pump power of 9 kW, 2.65 kW laser output laser optical conversion efficiency of 28%. The high beam quality (M2 = 2.1) when the pump power of 6 kW, 860 W laser output. Units of domestic rod-like high-power solid-state lasers are mainly concentrated in the Institute of Physics, Chinese Academy of Sciences of Fujian FJIRSM North China Opto-Electronics, Huazhong University of Science and Technology, Institute of Semiconductors, by and other units. The customer can choose the suitable output power of green laser pointer as per the actual needs.
April 2006, Institute of Semiconductors, using self-developed high-power laser head through the double rods for more than 3 kW solid-state laser output; October, Institute of Physics by rods way to obtain the high power of 3.8 kW 
The plasma cloud penetration effects are most obvious at low welding speed zone. When the welding speed increases, its impact will be reduced. The shielding gas to reach the surface through the nozzle exit pressure injection, hydrodynamic shape and diameter of the exports of the nozzle size is very important. It must be large enough to drive the spray of the protective gas covered surface, but in order to effectively protect the lens to prevent the metal vapor contamination or metal splash damage to the lens, nozzle size should be limited. The flow must also be controlled, otherwise laminar flow becomes turbulent protective gas atmosphere involved in the bath, and ultimately the formation of pores. In order to improve the protective effect, but also with additional lateral blowing. Various functions of green laser pointer with remote control will be introduced.The plasma cloud penetration effects are most obvious at low welding speed zone. When the welding speed increases, its impact will be reduced. The shielding gas to reach the surface through the nozzle exit pressure injection, hydrodynamic shape and diameter of the exports of the nozzle size is very important.