Research on New Energy Source of Laser Rapid Prototyping System

Most of the laser light sources used in the existing laser rapid prototyping systems are gas lasers. Gas lasers have disadvantages such as large volume, poor reliability, short life span, and unavailability of fixed spectrum. Therefore, we need to study a new type of energy source. Compared with gas lasers and other solid-state lasers, semiconductor lasers have the advantages of small size, low power consumption, long life, optional spectrum, etc., and have become many fields such as solid-state laser pumping, laser printing, scanning, display, data access, Important light source for remote sensing and optical communication. Another recently developed laser-fiber laser that can be applied to rapid prototyping technology has the advantages of large heat dissipation area, good beam quality, and small size. It has also been used in high-precision laser processing, optical communications, lidar systems, and space Technology, laser medicine and other fields have been applied. 1 High-power semiconductor laser line array The high-power semiconductor laser line array is a light-emitting array with a certain pitch formed by a separate laser source through a special processing method. The laser beam is collimated by the fast axis and slow axis collimating lens to ensure that it is in the front A laser beam with a certain width is formed on the working plane; the cross compensation combination of two rows of such linear arrays forms a continuous linear array energy source. Each laser source is controlled by a microcomputer, and whether it emits light or not can realize the lengthening of the laser beam.