大功率激光脉冲二极管触发高增益光导开关实验研究

发布时间：2018-07-13 14:25

【摘要】：研究了一种新型大功率激光脉冲二极管的输出特性,该激光二极管主要用于触发工作在高增益模式下的砷化镓光导开关。研制了基于射频金属-氧化物半导体场效应管的激光二极管驱动电路,可以为激光二极管提供上升沿、半高宽和峰值电流分别为4ns,20ns和130A的脉冲驱动电流。研究了激光二极管输出的激光脉冲波形、能量、功率、光场分布等特性,并在Blumlein传输线结构中,研究了该大功率激光脉冲二极管的输出特性对工作于高增益模式下的光导开关的导通电阻、开关抖动等主要导通性能参数的影响规律。实验结果表明,激光脉冲的能量和功率越大,光斑面积越大、分布越均匀,在相同偏置电压条件下,光导开关的导通性能越好。
[Abstract]:The output characteristics of a new type of high power laser pulse diode are studied. The laser diode is mainly used to trigger GaAs photoconductive switch which works in high gain mode. A laser diode driving circuit based on RF metal-oxide semiconductor field effect transistor has been developed, which can provide the laser diode with a rise edge, a half maximum width of 4 ns and a peak current of 20 ns and a peak current of 130A, respectively. The characteristics of laser pulse waveform, energy, power, optical field distribution and so on are studied, and in the Blumlein transmission line structure, the characteristics of laser pulse waveform, energy, power and light field distribution are studied. The influence of the output characteristics of the high power laser pulse diode on the on-resistance, switch jitter and other main on-performance parameters of the photoconductive switch working in high gain mode is studied. The experimental results show that the larger the energy and power of the laser pulse, the larger the spot area and the more uniform the distribution, and the better the on-off performance of the photoconductive switch is under the condition of the same bias voltage.
【作者单位】：中国工程物理研究院流体物理研究所;
【基金】：国家自然科学基金项目(11035004,51407169) 中国工程物理研究院科学技术发展基金项目(2015B04020781,2013A0402018) 西南科技大学实验室开放基金项目(15xnkf21) 中国科学院无机功能材料与器件重点实验室开放课题(KLIFMD-2014-01)
【分类号】：TN31;TN24

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