公开(公告)号：US12095501B2

公开(公告)日：2024-09-17

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

CPC classification number: 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：US11768113B2

公开(公告)日：2023-09-26

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 ,  G02F1/35 ,  G02B27/14

CPC classification number: G01J11/00 ,  G02B27/14 ,  G02F1/353 ,  G02F1/3503

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.