飞秒脉冲光谱全息记录和再现

Recording and Readout of Femtosecond Spectral Holography

结合飞秒脉冲光谱全息的记录和再现结构,对其物理过程进行详细的描述,给出再现后输出脉冲在不同波矢方向上的光场表达式.详细讨论记录、读出时对信号、参考和探测脉冲入射角的要求,分析各脉冲在频谱面上的光场分布图像,以及信号、参考及探测脉冲宽度不同对结果的影响.研究结果对超短时间脉冲的整形、再现和存储等信号处理有一定的参考价值.

Based on the recording and readout structures of femtosecond spectral holography,the entire physical procedures is depicted,and the mathematical expressions for the output pulse field distribution in different directions is given.The choices of the angles of signal,reference and test pulses,and distributions of the signal,reference and test pulses on the spectral plane are discussed.Then the influence of signal,reference and test pulses＇ duration on the output pulses is discussed.The results are useful to the ultrashort pulse signal processing including shaping,storage and reconstruction.