METHOD AND SYSTEM FOR LASER-BASED HIGH-SPEED DIGITAL MARKING OF OBJECTS

摘要

Laser marking system and method are provided. A laser source (10) is configured to supply a laser beam having a first optical intensity level and a respective beam cross-section. A spatial light modulator (SLM) (12) is optically coupled to the laser source to receive the laser beam. The SLM is controlled to generate an output laser beam with an optical pattern containing a data code matrix across the beam cross-section. An optical amplifier (20) is coupled to the SLM to receive the laser beam from the SLM and generate an amplified laser beam containing the same data code matrix as generated by the SLM. The amplified laser beam has a second optical intensity level higher relative to the first intensity level and is selectable to either ablatively or non-ablatively mark a target object with the data code matrix.