We created a practical air-filled switch triggered by a ∼10 9 W picosecond laser beam with a slightly variable breakdown delay and low jitter. The switch relies on the spark gap with a coaxial geometry, which is ignited by a focused laser beam directed at a certain angle to the gap axis. The switch is integrated with a high-voltage cable generator operating at a constant negative voltage of up to 50 kV. We demonstrate that, by just varying the ignition angle of the spark gap, one can achieve variable breakdown delay tunable within ∼0.1–10 ns with ≲1 ns jitter. Empirical dependences of switching characteristics of the developed device on the ignition angle are obtained. We demonstrate that, combined with variation of the ignition beam energy and charging voltage, variation of the spark gap ignition angle provides superior control over the gap switching characteristics without complicating the switch design. The proposed approach to driving the switching characteristics ...

中文翻译：

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激光触发的气体开关具有亚纳秒级的抖动，击穿延迟可在约0.1–10 ns范围内可调，由火花隙点火角决定

我们创建了一个实用的充满空气的开关，该开关由约10 W皮秒的10 W皮秒激光束触发，击穿延迟略微变化且抖动低。该开关依赖于具有同轴几何形状的火花隙，该火花隙由聚焦的激光束以与间隙轴成一定角度的方向点燃。该开关与高压电缆发生器集成在一起，该发生器可在高达50 kV的恒定负电压下运行。我们证明，仅通过改变火花隙的点火角，就可以实现可变的击穿延迟，该延迟可以在约0.1ns到10ns的范围内可调，并具有≲1ns的抖动。获得了所开发的装置的开关特性对点火角的经验依赖性。我们证明，结合点火束能量和充电电压的变化，火花隙点火角的变化可提供对间隙切换特性的出色控制，而不会使开关设计复杂化。提议的驱动开关特性的方法...