Fiber-Optically Triggered Four Parallel GaAs Photoconductive Semiconductor Switches
Fiber-Optically Triggered Four Parallel GaAs Photoconductive Semiconductor Switches
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DOI：
10.1088/1009-0630/13/6/21
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发表时间：
2011-12
影响因子：
1.7
通讯作者：
Shi Wei;Xue Hong;Liao Ning;Chen Suguo;Dai Ruijuan
中科院分区：
文献类型：
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作者：
Shi Wei;Xue Hong;Liao Ning;Chen Suguo;Dai Ruijuan
用4束1064 nm激光同时触发4个并联的GaAs光电导开关。研究了四种线性电脉冲的瞬态特性。当四束激光能量分别为16.4 mJ、15.6 mJ、15.3 mJ和13.7 mJ时，在8 kV的偏压下，获得了四个脉宽约25 ns、上升时间约10 ns的稳定电脉冲。最大开关电压幅值为3.8kV。在保持触发脉冲能量和偏置电压不变的情况下，用10 Hz的激光脉冲对三种GaAs光子晶体进行了触发。给出了同步计算方法，计算出4个平行GaAs光子晶体的同步为79 ps。分析了偏压和激光能量对电脉冲电压幅值的影响。此外，还讨论了同步与抖动时间的关系。
Four parallel GaAs photoconductive semiconductor switches (PCSSs) were triggered simultaneously by four 1064 nm laser beams. The transient characteristics of four linear electrical pulses were investigated. When the energy of four laser beams were 16.4 mJ, 15.6 mJ, 15.3 mJ, and 13.7 mJ, respectively, four stable electrical pulses of about 25 ns width and 10 ns rise time were obtained at the same bias voltage of 8 kV. The maximum switching voltage amplitude was 3.8 kV. With the triggering pulse energy and bias voltage kept constant, the three GaAs PCSSs were triggered at 10 Hz laser pulse. The method of synchronization calculation was given, and the synchronization of four parallel GaAs PCSSs was calculated to be 79 ps. The influence of bias voltage and laser energy on the voltage amplitude of electrical pulse was analyzed. Furthermore, relationship between the synchronization and the jitter time was also discussed.