应用于光子调制的Pockels Cell前馈驱动源 驱动脉冲传输时延的研究

doi:10.3969/j.issn.0253-2778.2014.04.004

中国科学技术大学学报 ›› 2014, Vol. 44 ›› Issue (4): 278-284.DOI: 10.3969/j.issn.0253-2778.2014.04.004

• 论著 • 上一篇

应用于光子调制的Pockels Cell前馈驱动源驱动脉冲传输时延的研究

郎佳红，蒋顺利，冯德仁，徐波，王世祥，梁昊，陈伟，雍海林

1.安徽工业大学电气与信息工程学院，安徽马鞍山243032；2.中国科学技术大学物理学院，安徽合肥230029

收稿日期:2013-10-18 修回日期:2013-12-27 接受日期:2013-12-27 出版日期:2013-12-27 发布日期:2013-12-27
通讯作者: 郎佳红
作者简介:郎佳红（通讯作者），男，1972年生，副教授. 研究方向：电磁脉冲技术. E-mail：jhlang@ahut.edu.cn

Study on pulse transmission delay of Pockels Cell feedforward driving source applied to photon modulation

LANG Jiahong, JANG Shunli, FENG Deren, XU Bo, WANG Shixiang, LIANG Hao, CHEN Wei, YONG Hailin

1.Institute of Electrical and Information, Anhui University of Technology， Maanshan 243032， China； 2.School of Physical Science， University of Science and Technology of China， Hefei 230029， China

Received:2013-10-18 Revised:2013-12-27 Accepted:2013-12-27 Online:2013-12-27 Published:2013-12-27

摘要/Abstract

摘要： 研制了一种基于直流调制技术应用于光子调制的Pockels Cell前馈驱动源，针对线路中分布参数对行波传播的散射作用, 建立了驱动脉冲信号在电路中传输的等值电路模型,分析了分布参数散射作用对功率开关器件触发导通延时的影响.分析得出因电路分布参数对开关驱动信号的散射，造成驱动脉冲信号前沿变缓，进而导致功率开关器件触发导通延时以及功率脉冲波前沿上升时间增加，从而在一定程度上增加了脉冲传输的时延的结论.通过改进驱动电路、优化电路布线、添加LC网络匹配电路等措施，改善了驱动脉冲传输时延的问题.实验结果表明，经综合改进后电路的驱动脉冲传输时延下降至100 ns，相比未改进前300 ns左右时延改进效果显著.

关键词: Pockels Cell前馈驱动源, 电光开关, 脉冲传输延时, 分布参数

Abstract: A Pockels Cell feedforward driving source based on DC modulation was proposed, which was applied to photon modulation. Aiming at the scattering effect of distribution parameters on wave propagation in circuit, an equivalent model circuit was built to simulate the pulse wave transmission in circuit and the influence of the scattering effect of distributed parameters on the triggered flow of the power switching device was analyzed. It was found that the scattering effect of distributed parameters on the switching drive signal resulted in a slower front edge of the drive pulse, which prolonged the triggered flow delay of the power switching device and increased the rising edge of the power pulse, thus increasing the delay time of pulse transmission. Some methods, including driving circuit improvement, circuit wiring optimization, and augment of an LC network matching circuit, were adopted to improve drive pulse transmission time delay. Experiment results indicate the pulse transmission delay of the improved circuit dropped remarkably from 300 ns to 100 ns in comparison with the original circuit.

Key words: Pockels Cell feedforward drivers, electro-optic switch, driving pulse transmission delay, distributed parameter

中图分类号:

TN709

郎佳红，蒋顺利，冯德仁，徐波，王世祥，梁昊，陈伟，雍海林. 应用于光子调制的Pockels Cell前馈驱动源驱动脉冲传输时延的研究[J]. 中国科学技术大学学报, 2014, 44(4): 278-284.

LANG Jiahong, JANG Shunli, FENG Deren, XU Bo, WANG Shixiang, LIANG Hao, CHEN Wei, YONG Hailin. Study on pulse transmission delay of Pockels Cell feedforward driving source applied to photon modulation[J]. Journal of University of Science and Technology of China, 2014, 44(4): 278-284.

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应用于光子调制的Pockels Cell前馈驱动源驱动脉冲传输时延的研究

Study on pulse transmission delay of Pockels Cell feedforward driving source applied to photon modulation

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应用于光子调制的Pockels Cell前馈驱动源 驱动脉冲传输时延的研究

Study on pulse transmission delay of Pockels Cell feedforward driving source applied to photon modulation

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应用于光子调制的Pockels Cell前馈驱动源驱动脉冲传输时延的研究