Recently, we started a new project toward data-driven laser processing, in which real-time monitoring data are delivered to AI system for high-speed optimization. Then, the optimized laser parameters are transferred to the ultrafast laser processing system. To follow the optimized parameters instantly, it’s important to develop a new laser processing system with high-speed modulation as well as wide-range variable parameters.
In this work, effect of ultrafast laser parameters including high-speed modulation on ablation volume was discussed for micro-drilling of glass materials. The drilling of silica glass was performed under three types of modulation conditions with the same total input power and number of pulses: monotonic increase in the pulse energy, constant energy, monotonic decrease. As a result, the holes drilled with monotonic decrease became much deeper compared to samples drilled under monotonic increase. The usefulness of the high-speed laser modulation was demonstrated.
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