光学精密工程2024，Vol.32Issue(8)：1122-1129,8.DOI:10.37188/OPE.20243208.1122
2.79 μm高速转镜调Q Er,Cr:YSGG纳秒窄脉冲激光器
High-speed rotating-mirror Q-switched Er,Cr:YSGG nanosecond narrow pulse laser at 2.79 μm
摘要
Abstract
Rotating mirror Q-switched technology incurs no intracavity insertion loss,making it a direct method for obtaining narrow pulses and high peak power output lasers.Nanosecond pulses require the use of high-speed rotating mirror Q-switch,along with precise control of motor speed and xenon lamp dis-charge delay.This ensures maximum population inversion of in the laser medium,leading to the highest laser energy output.This paper presented the design of a high-speed rotating mirror Q-switched control system with the Arduino Mega 2560 microcontroller as its core.The system utilized precise parse of serial screen instructions by the microcontroller to control the charging and discharging of the laser power supply and the start-stop operations of the high-speed motor.Additionally,it integrated and downshifted the pulse signals from the rotating mirror to control the precise delay time for triggering the xenon lamp dis-charge,thereby achieving precise control over the delay time for the nanosecond narrow pulse Q-switched output of the lamp-pumped Er,Cr:YSGG laser.The highest single-pulse laser energy of 45.7 mJ,pulse width of 86.2 ns,and corresponding peak power of 530.2 kW were obtained at a repetition frequency of 5 Hz with a rotating mirror speed of 650 r/s.关键词
转镜调Q/固体激光器/Er,Cr:YSGG激光/Arduino/氙灯泵浦Key words
rotating mirror Q-switch/solid state laser/Er,Cr:YSGG laser/Arduino/Xe flash lamp分类
电子信息工程引用本文复制引用
朱永斌,马圣洁,程庭清,王礼,陈月明,江海河..2.79 μm高速转镜调Q Er,Cr:YSGG纳秒窄脉冲激光器[J].光学精密工程,2024,32(8):1122-1129,8.基金项目
国家重点研发项目(No.2018YFB0407204) （No.2018YFB0407204）
