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GaAs-PCSS多通道同步导通条件实验研究

刘毅 谌怡 夏连胜 王卫 叶茂 张篁

刘毅, 谌怡, 夏连胜, 等. GaAs-PCSS多通道同步导通条件实验研究[J]. 强激光与粒子束, 2020, 32: 025005. doi: 10.11884/HPLPB202032.190328
引用本文: 刘毅, 谌怡, 夏连胜, 等. GaAs-PCSS多通道同步导通条件实验研究[J]. 强激光与粒子束, 2020, 32: 025005. doi: 10.11884/HPLPB202032.190328
Liu Yi, Shen Yi, Xia Liansheng, et al. Experimental study on multi-channel synchronous conduction conditions of GaAs-PCSS[J]. High Power Laser and Particle Beams, 2020, 32: 025005. doi: 10.11884/HPLPB202032.190328
Citation: Liu Yi, Shen Yi, Xia Liansheng, et al. Experimental study on multi-channel synchronous conduction conditions of GaAs-PCSS[J]. High Power Laser and Particle Beams, 2020, 32: 025005. doi: 10.11884/HPLPB202032.190328

GaAs-PCSS多通道同步导通条件实验研究

doi: 10.11884/HPLPB202032.190328
基金项目: 国家自然科学基金项目(51507162,51407169,51607166);国家自然科学基金委员会与中国工程物理研究院联合基金项目(U1530156)
详细信息
    作者简介:

    刘 毅(1987-),男,硕士,助理研究员,从事脉冲功率技术及加速器技术研究;109854434@163.com

  • 中图分类号: TM834

Experimental study on multi-channel synchronous conduction conditions of GaAs-PCSS

  • 摘要: 砷化镓光导开关(GaAs-PCSS)是具有快响应、高重频、低抖动、高功率容量的半导体光电导开关,多通道设计能够有效降低GaAs-PCSS非线性大电流导通时的损伤,提高开关寿命。为探究GaAs-PCSS多通道同步导通的必要条件,在基于固态脉冲形成线的实验平台上,通过特殊设计的夹具,将多枚GaAs-PCSS并联连接以作为脉冲形成电路的开关,以对各GaAs-PCSS施以不同的触发信号进行测试。实验结果证明:相同触发信号下,开关导通电流被成功地均分到4个GaAs-PCSS通道中;不同触发信号下,为获得较好的电流均分效果,各通道触发延迟时差须小于1 ns,触发能量差须小于20 μJ。设计了分体式、单体式两种结构的多通道GaAs-PCSS,其中基于刻蚀工艺的单体式20通道GaAs-PCSS在7 000余次大电流工作后仅发生轻微损伤。
  • 图  1  实验平台电路示意图

    Figure  1.  Schematic of experimental circuit

    图  2  四GaAs-PCSS并联同步导通触发与测试平台

    Figure  2.  Experimental platform for 4 parallel GaAs-PCSS triggering test

    图  3  各开关中导通电流测试结果

    Figure  3.  Conducting current of each PCSS when 1, 2, 3 or 4 PCSSs are triggered

    图  4  各开关中导通电流百分比与触发能量或触发延迟时间差之间的关系

    Figure  4.  Percentage of conducting current of each PCSS when triggered at different laser energy or trigger time

    图  5  分体式和单体式多通道GaAs-PCSS设计与照片

    Figure  5.  Designs and pictures of split and integrated multi-channel GaAs-PCSS

    图  6  单体式20通道GaAs-PCSS的7 000余次导通波形累积图

    Figure  6.  Cumulative graph of load output waveforms (up) and bias voltage (down) of the integrated multi-channel GaAs-PCSS during 7 000 shots

    图  7  单体式20通道GaAs-PCSS的7 000余次导通前(a)、后(b)对比照,及普通GaAs-PCSS损伤照片(c)

    Figure  7.  Photos of the integrated 20-channel GaAs-PCSS before (a) and after (b) 7 000 shots, and a photo of a damaged normal GaAs-PCSS (c)

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    [2] Shi W, Tian L, Liu Z, et al. Accurate measurement of the jitter time of GaAs photoconductive semiconductor switches triggered by a one-to-two optical fiber[J]. Appl Phys Lett, 2013, 102: 154106. doi: 10.1063/1.4802755
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出版历程
  • 收稿日期:  2019-09-02
  • 修回日期:  2019-10-12
  • 刊出日期:  2019-12-26

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