Research on synchronization of 15 parallel high gain photoconductive semiconductor switches triggered by high power pulse laser diodes

Research on synchronization of 15 parallel high gain photoconductive semiconductor switches triggered by high power pulse laser diodes
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高功率脉冲激光二极管触发15个并联高增益光电导半导体开关同步研究

DOI:
10.1063/1.4906035
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发表时间:
2015-01
影响因子:
4
通讯作者:
W. Wang, L. S. Xia, Y. Chen, et al.
W. Wang, L. S. Xia, Y. Chen, et al.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
W. Wang, L. S. Xia, Y. Chen, et al.

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研究了15个并联高增益砷化镓光电导半导体开关(GaAs PCSS)的同步,以获得更高的输出电压。每个 PCSS 由高功率脉冲激光二极管独立触发。激光脉冲的脉冲宽度、能量、峰值功率和中心波长分别约为18ns、360μJ、20kW和905nm。在堆叠式Blumlein传输线结构中,通过提供优化的偏置电压和激光参数,实现了15个并联GaAs PCSS的同步传导。给出了同步计算方法,测得15个并联GaAs PCSS的同步率为775 ps。进一步分析了偏置电压、激光器参数对同步的影响。在输出端,由15条Blumlein传输线的输出电压叠加,总输出电压高达328kV,这是迄今为止报道的GaAs PCSS的最高输出电压。
The synchronization of 15 parallel high gain gallium arsenide photoconductive semiconductor switches (GaAs PCSS) has been researched aiming to get higher output voltage. Each PCSS is triggered independently by a high power pulse laser diode. The pulse width, energy, peak power, and central wavelength of the laser pulse are approximately 18 ns, 360 μJ, 20 kW, and 905 nm, respectively. In the stacked Blumlein transmission lines structure, the synchronous conduction of 15 parallel GaAs PCSSs has been achieved by offering optimized bias voltage and laser parameters. The method of synchronization calculation is given, and the synchronization of the 15 parallel GaAs PCSSs is measured as 775 ps. Furthermore, influences of the bias voltage, laser parameters on the synchronization are analyzed. In the output terminal, superimposed by the output voltages of 15 Blumlein transmission lines, the total output voltage reaches up to 328 kV, which is the highest output voltage of GaAs PCSSs that has been reported so far.
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