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为利用现有装备简单获得纳秒脉宽、峰值较高的单脉冲激光,满足军事应用和高温等离子体干涉研究的时间分辨要求,采用专利技术优化了调Q脉冲激光自斩波KDP泡克耳斯盒电光开关的触发狭隙,解决了19 kV全波电压下静态绝缘阻断和调Q激光脉冲前沿低阈值击穿双重可靠以及全系统动作同步,确保了触发的快捷和峰值附近斩波,实现了从传统红宝石激光器脉宽30 ns,能量80 mJ的调Q激光脉冲中斩出1.7 ns,4 mJ的单脉冲激光。实验和分析表明,预处理崎化了开关电极间的场分布,强化了激光触发作用,保证了斩出脉冲的窄脉宽和高峰值。
In order to meet the time resolution requirements of military applications and high-temperature plasma interference research by simply obtaining nanosecond pulse width and high-peak single-pulse lasers with the existing equipment, the patented technology is used to optimize the Q-switched pulsed laser self-chopping KDP foam Si box electro-optic switch trigger slot to solve the static insulation at 19 kV full-wave voltage cut off and Q-switched laser pulse with low threshold breakdown dual reliable and system-wide synchronization to ensure that the trigger fast and chop near the peak, A single-pulse laser of 1.7 ns and 4 mJ was cut from a Q-switched laser pulse with a pulse width of 30 ns and an energy of 80 mJ. Experiments and analysis show that the pretreatment of the switch between the field distribution of the switch electrode, and enhance the laser triggering to ensure that the chopped-off pulse of narrow pulse width and high peak.