光学学报, 2013, 33 (6): 0614001, 网络出版: 2013-05-14   

相位调制合束产生高重复频率短脉冲技术研究

Phase-Modulation-Combination Method for Generation of High Repetition Short Pulses
作者单位
上海交通大学激光等离子体教育部重点实验室, 上海 200240
摘要
对相位调制合束技术产生高重复频率短脉冲技术进行了研究,利用两个电光开关的错位削波技术对连续种子激光进行斩波、分束,并分别用相同的相位调制器调制,通过相干合束产生窄带脉冲。对多种相位调制信号调制光脉冲的过程进行了数值仿真,研究了不同相位调制函数调制引起的光脉冲特性变化规律,通过实验验证了本方法产生高重复频率短脉冲的科学性。利用2.5 GHz带宽的实验仪器压缩出了脉宽为60 ps、重复频率为1 GHz的高重复频率短脉冲。
Abstract
Phase-modulation-combination (PMC) method is researched for generation of high repetition short pulses. The method is simple and compact consisting of two photoelectric switches and two modulators, where two sub-pulses from the switches are modulated and combined interferentially, giving rise to a narrower pulse. The processes of PMC methods with different phase modulation functions are simulated numerically, and optimizations among different compression results induced by various phase function are given. Furthermore, the experimental verification for the system function is supplied, and short pulse train with 1 GHz repetition rate and 60-ps pulse duration is generated.
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王世伟, 郑君, 薛莉, 徐剑秋. 相位调制合束产生高重复频率短脉冲技术研究[J]. 光学学报, 2013, 33(6): 0614001. Wang Shiwei, Zheng Jun, Xue Li, Xu Jianqiu. Phase-Modulation-Combination Method for Generation of High Repetition Short Pulses[J]. Acta Optica Sinica, 2013, 33(6): 0614001.

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