用于激光脉冲整形的电脉冲产生技术  

Electrical pulse generation technology for laser pulse shaping

作　　者：缑永胜[1,2] 刘百玉[1] 张伟[1,2] 白永林[1] 白晓红[1] 杨文正[1] 秦君军[1] 王博[1] 

机构地区：[1]中国科学院西安光学精密机械研究所中国科学院超快诊断国防重点实验室,陕西西安710119 [2]中国科学院研究生院,北京100049

出　　处：《红外与激光工程》2011年第11期2191-2194,共4页Infrared and Laser Engineering

基　　金：中国科学院创新基金(10390161)

摘　　要：介绍了一种用于激光脉冲整形的超宽带脉冲产生方法。电路中利用阶跃恢复二极管(SRD)载流子可控、截止速度快的特点,采用对阶跃恢复二极管进行串并联相结合的方法设计了超宽带脉冲产生电路。给出了实际电路的测试结果,并且对实验结果在物理层面上进行了理论分析,实验结果与理论分析结果吻合。此脉冲产生电路可输出幅度约10 V,脉冲宽度约150 ps的超宽带脉冲。输出脉冲的触发抖动小于3 ps,幅度稳定性优于3%,满足脉冲整形的要求。A new circuit to generate ultra-wide-band pulse for laser pulse shaping used in ＂Shen Guang 11I＂ device was presented in this paper. This circuit was based on the characteristics of the step recovery diode （SRD） that the quantity of the carders in the middle layer was controllable, the SRD had little parasitical capacitor and it would cut off rapidly. The pulse generation circuit was designed by combining the SRD in series and parallel. The ultra-wide-band pulse was tested specifically and test results of the practical circuit were given and analyzed in physical level. They were tallied with the theoretical results. This pulse generation circuit could output a pulse with amplitude about 10 V and pulse width about 150 ps. The trigger jitter of the pulse was less than 3 ps, amplitude stability was better than 3%. Thus, this circuit can meet the requirement of the pulse shaping.

关 键 词：激光脉冲整形 皮秒脉冲 超宽带 阶跃恢复二极管 

分 类 号：TN78[电子电信—电路与系统]