Advantages of single-mode and multi-mode continuous green light applications


1. Advantages of single-mode continuous green light application: 

(1) Compared with multi-mode laser, single-mode has greater focal depth and melting depth. Under the same parameters, the aspect ratio of a single-mode laser is 7.6, while that of a multi-mode laser is 1.05. Therefore, single-mode laser has stronger penetration than multi-mode laser

 

(2) Higher energy density and a larger process window can be achieved when welding products with the same power

 

(3) Since single-mode has a large aspect ratio, its welding precision is much higher than that of multi-mode. It does not require a large laser power to achieve precision welding, and the heat effect and deformation after welding are small

 

(4) Since the focused spot is smaller, more delicate welding can be obtained and higher processing accuracy can be achieved

 

(5) Better beam quality, a longer focal length field lens can be used in actual use, and the processing format is larger; this advantage can greatly increase the size of the printed sample in 3D printing and reduce the impact of material splash on the field lens.

 

(6) Due to the high energy density, the average power required for precision welding is smaller, so the power used by single-mode continuous green light is generally lower, and the energy efficiency ratio is higher than that of multi-mode continuous green light.

 

2. Advantages of multi-mode continuous green light:

 

(1) Multi-mode kilowatt continuous green light uses optical fiber transmission, and the optical path is relatively flexible;

 

(2) When welding thin sheets, a single pen can obtain a wider weld, which helps to improve efficiency;

 

(3) Flat-top spot, better uniformity, welding on ultra-thin sheets, more precise back mark control.

 

Kilowatt single-mode continuous green light and kilowatt multi-mode continuous green light each have their own advantages in precision welding applications; in precision 3D printing applications, single-mode continuous green light has obvious precision advantages.

 

It is recommended that you choose a single-mode or multi-mode continuous fiber green light laser according to your needs in the precision processing of high-reflectivity materials such as copper.

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