Complete temporal characterization of short optical pulses by simplified chronocyclic tomography.
Complete temporal characterization of short optical pulses by simplified chronocyclic tomography.
复制标题
通过简化的时间循环断层扫描对短光脉冲进行完整的时间表征。
作者：
C. Dorrer;I. Kang
提出了一种表征短光脉冲时域电场的自参考技术。脉冲的群延迟直接由脉冲在时间循环空间中旋转后Wigner-Ville函数的两个投影得到。该技术的实现只需要二次相位调制和两次频谱测量，就可以在没有任何假设的情况下直接和明确地重建电场。一个基于这些原理的装置被用来表征2ps光脉冲的电场。
A new self-referencing technique to characterize the temporal electric field of a short optical pulse is presented. The group delay of the pulse is directly obtained from two projections of the Wigner-Ville function after rotation of the pulse in chronocyclic space. Implementation of the technique requires only quadratic temporal phase modulation and two spectrum measurements, from which the electric field is directly and unambiguously reconstructed without any assumption. A device based on these principles is used to characterize the electric field of a 2-ps optical pulse.