High Power High Efficiency Diode Laser Stack for Processing

4th International Conference on Advanced Engineering and Technology

Gu, Yuanyuan^1 ; Lu, Hui^1 ; Fu, Yueming^1 ; Cui, Yan^1

Tianhua College, Shanghai Normal University, Section of Practice and Training, Shanghai

201815, China^1

关键词: Developed countries;    Diode laser stack;    Gaas semiconductors;    High power diode laser;    High-efficiency;    ITS applications;    Life expectancies;    Rectangular beams;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/317/1/012008/pdf
DOI  :  10.1088/1757-899X/317/1/012008

来源: IOP

【 摘 要 】

High-power diode lasers based on GaAs semiconductor bars are well established as reliable and highly efficient laser sources. As diode laser is simple in structure, small size, longer life expectancy with the advantages of low prices, it is widely used in the industry processing, such as heat treating, welding, hardening, cladding and so on. Respectively, diode laser could make it possible to establish the practical application because of rectangular beam patterns which are suitable to make fine bead with less power. At this power level, it can have many important applications, such as surgery, welding of polymers, soldering, coatings and surface treatment of metals. But there are some applications, which require much higher power and brightness, e.g. hardening, key hole welding, cutting and metal welding. In addition, High power diode lasers in the military field also have important applications. So all developed countries have attached great importance to high-power diode laser system and its applications. This is mainly due their low performance. In this paper we will introduce the structure and the principle of the high power diode stack.