“Significant breakthroughs have been made in nanosecond laser pulse technology, and the research team has successfully implemented a high-speed mirror Q-switching control system, providing a direct way to obtain narrow pulse, high peak power output lasers. The system is based on the Arduino mega 2560 microcontroller, which accurately controls the charging and discharging of the laser power supply and the start and stop of the high-speed motor. At the same time, by integrating frequency reduction control of the xenon lamp discharge time, it achieves precise control of the delay time. At a repetition rate of 5 Hz and a rotation speed of 650 r/s, the highest single pulse laser energy obtained was 45.7 mJ, with a pulse width of 86.2 ns and a corresponding peak power of 530.2 kW. This achievement lays the foundation for the further development of nanosecond laser pulse technology and is expected to bring more efficient and accurate solutions to laser processing, medical and other fields.”