公开(公告)号：US20220326087A1

公开(公告)日：2022-10-13

申请号：US17436789

申请日：2020-04-30

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Zhongmin YANG ,  Xiaoxiao WEN ,  Wei LIN ,  Xiaoming WEI

IPC: G01J11/00 ,  G02B27/14 ,  G02F1/35

Abstract: The present application relates to a light pulse signal processing system. A to-be-measured signal light source generates a to-be-measured signal light pulse, and the to-be-measured signal light pulse is transmitted to a cylindrical lens. The to-be-measured signal light pulse is converted into a to-be-measured signal light pulse having a spatial angle chirp by the cylindrical lens, and is outputted and is incident into a pair of long mirrors at different angles. The to-be-measured signal light pulse incident at different incident angles is delayed by the pair of long mirrors. A cluster of to-be-measured signal light pulses with a corresponding repetition rate is outputted to a beam combining mirror, and is combined with a cluster of reference light pulses by the beam combining mirror. A light signal analysis device analyzes the combined cluster of light pulses.

公开(公告)号：US20230011819A1

公开(公告)日：2023-01-12

申请号：US17946054

申请日：2022-09-16

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Zhongmin YANG ,  Xiaoxiao WEN ,  Yueyi SUN ,  Xiaoming WEI

IPC: H04B10/079

Abstract: The present invention discloses an intelligent real-time full-field measurement method and system for a high-repetition-rate femtosecond pulse. The method includes: splitting a to-be-tested signal into n channels; performing a frequency reduction separation on each of the channels; splitting each channel of frequency-reduced time-domain demultiplexed signals into two signals, where a small dispersion component performs time-domain stretching on one signal, and a big dispersion component performs a time-frequency conversion on the other signal; acquiring time-domain intensity information of the to-be-tested signal after the stretching by the small dispersion component and frequency-domain envelope information of the to-be-tested signal after the time-frequency conversion by the big dispersion component; and continuously iterating the acquired time-domain intensity information and frequency-domain envelope information according to a Gerchberg-Saxton algorithm until a convergence is achieved, to obtain information about intensity and phase of the to-be-tested signal in a time domain and a frequency domain.

公开(公告)号：US20220299374A1

公开(公告)日：2022-09-22

申请号：US16964095

申请日：2019-06-21

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY

Inventor： Zhongmin YANG ,  Wei LIN ,  Chao MENG ,  Xiaoxiao WEN ,  Tian QIAO

IPC: G01J11/00 ,  G01J9/04

Abstract: Disclosed are a method and a system for acquiring three-domain information of ultrafast light field. The method includes: acquiring time-domain information at positions of respective spatial points in a first signal to be measured; acquiring first frequency-domain information of continuous light portions at positions of respective spatial points in a second signal to be measured; acquiring second frequency-domain information of pulse light portions at positions of respective spatial points in a third signal to be measured; and fusing the time-domain information, the first frequency-domain information, and the second frequency-domain information, and determining three-domain information of an ultrafast light field signal according to information obtained by the fusion; wherein, the first signal to be measured, the second signal to be measured and the third signal to be measured are three signals obtained by splitting the ultrafast light field signal to be measured.