Development of Portable Laser Marking System for Three-Dimensional Structuring Applications

摘要

This study aims to develop a portable laser marking system that consists of a fiber-optics diode laser with a wavelength of 808 nm, optics/opto-mechanical components, a laser scanning module, a laser energy control module, and a human-machine interface for fabricating three-dimensional structures. The measured results of laser beam quality revealed that the laser beam was collimated with TEM_(00) mode through a fiber collimator and the roundness of laser beam was approximately of 96%. Moreover, the laser output power increased proportionally with increasing the pulse repetition rate. The deflective angle of scanner mirrors was adjusted by using 0.192 voltage to obtain a scan distance of 1 mm, and the maximum scanning field was 100 mm × 100 mm. The pulse widths were ranging from 530μs to 48μs when the laser pulse repetition rates were adjusted from 1 kHz to 10 kHz, respectively.