Such an institution has also achieved a breakthrough in high-power blue laser pointer early. In September 2020, the Guangdong Guangdong-Hong Kong-Macao Greater Bay Area Hard Science and Technology Innovation Research Institute (“Hard Science Academy”) for the first time launched its self-developed industrial-grade blue semiconductor direct output laser with an output power of 500W; in March this year, it was held at the Shanghai Optical Expo At the same time, the Chinese Academy of Hard Sciences made a further breakthrough, launching a 1000W blue semiconductor laser. This series of products are mainly used for welding, cladding, 3D printing, etc. of high-reflection materials, not only filling the domestic market gap in this field, but its technology is also at the world’s leading level.
It is understood that the Guangdong Academy of Hard Science is approved by the Guangdong Provincial Department of Science and Technology, organized by the Guangzhou High-tech Industrial Development Zone Management Committee, and supported by the Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, and Xike Holdings. . Its blue laser research and development team is affiliated to the Optoelectronics Technology Innovation Center of the Chinese Academy of Hard Sciences, led by a senior returnee doctor who has been in the optoelectronics industry for decades, and has experienced technical talents in optics, structure, electrical, and technology. Through in-depth research on the laser processing market and comparison of technical routes, the team found that compared to infrared light, blue light has inherent advantages in the field of material processing.
According to the chief scientist of the Chinese Academy of Hard Sciences, infrared lasers perform well in many industrial applications, but they are not ideal in terms of high anti-metal processing in the corresponding band. The absorption rate of blue light for the same material is 10-20 times that of infrared light. Blue laser processing can also improve the spatter problem caused by infrared laser processing.
Take the blue laser independently developed by the Chinese Academy of Hard Sciences as an example. When the most common high-reflection material “copper” in the processing industry is used, the power required by conventional infrared lasers is about 4000 watts, while the blue laser only needs 400-800 watts. Processing can be achieved; at the same time, the high absorption rate of blue light by copper metal greatly increases the process window, and the welding effect can be fine-tuned through parameter control to achieve “spatter-free welding”; in addition to the improvement in quality, blue light welding copper metal It also has obvious speed advantages, at least 8 times faster than infrared laser welding.
On the technical route, our blue green laser pointer adopts the industry’s first “free space output + thin beam rectangular spot + highly filled area array beam” structure, taking into account high power, small size, and light weight, and its volume is only the volume of a solid laser machine. 1/10-1/5, the system is more stable, avoiding the need for frequent maintenance of the solid-state laser machine. “Hu Jinfu said.