基于全光纤光谱干涉的多路超短脉冲时间同步单次测量技术

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提出一种基于全光纤光谱干涉的多路超短脉冲大动态范围时间同步单次测量方法,弥补了非线性相关法测量同步状态时测量范围小和示波器测量时分辨率差的不足,解决了同步测量中空间光路的复杂性和单次实时测量的难题.首先对多路光纤阵列干涉测量进行仿真计算,然后设计四路脉冲传输的光路并在实验中验证多路同步单次测量方法的可行性,最后详细分析测量误差的来源和影响.该测量方法的最小同步时间精度为5.3 fs,测量范围为1.055~14.751 ps,与仿真结果有较好的一致性.该测量方法具有光纤链路易于集成、光谱干涉数据处理速度快、测量信号能量需求低等优势,在多路超短脉冲激光相干合束系统中有重要应用前景.
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