An intelligent high repetition rate femtosecond pulse real-time full-field measurement method and system

A high repetition rate, femtosecond pulse technology, applied in the direction of instruments, etc., can solve the problems of high repetition frequency pulse overlap and unusable measurement technology

Active Publication Date: 2021-05-14
SOUTH CHINA UNIV OF TECH
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to realize the method and system for real-time full-field measurement of intelligent high repetition frequency femtosecond pulses, to break through the limitation that high repetition frequency pulses are prone to pulse overlap, which leads to the unusability of existing measurement technologies, and to realize full-field information measurement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An intelligent high repetition rate femtosecond pulse real-time full-field measurement method and system
  • An intelligent high repetition rate femtosecond pulse real-time full-field measurement method and system
  • An intelligent high repetition rate femtosecond pulse real-time full-field measurement method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0038] Such as figure 1 and figure 2 An intelligent high-repetition frequency femtosecond pulse real-time full-field measurement system is shown, which includes an optical branching component 1, an arbitrary waveform generator 2, 4 high-speed photoelectric amplitude modulators 3, and 4 second optical couplers 4 , 4 small dispersion components 5, 4 large dispersion components 6, high-speed signal acquisition components 7, and data processing components 8.

[0039] The optical branching component 1 includes three first optical couplers, wherein two first optical couplers are connected to the output end of one first optical coupler, and the signal 1 to be tested is divided into 4 pulses;

[0040] The high-speed signal acquisition component 7 includes a high-speed photodetector...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an intelligent high repetition frequency femtosecond pulse real-time full-field measurement method and system. The method includes the following steps: 1. dividing the signal to be measured into n channels; 2. each channel is decoded by a high-speed photoelectric amplitude modulator Multiplexing frequency reduction separation; 3. After frequency reduction, each time-domain demultiplexing signal is divided into two signals, one of which is stretched in the time domain through a small dispersion component, and the other signal is passed through a large dispersion The component performs time-frequency conversion; 4. Through the high-speed signal acquisition component, the time-domain intensity information of the signal to be tested after stretching the small dispersion component and the frequency domain envelope information of the test signal after the time-frequency conversion of the large dispersion component are collected in real time; 5. For the collected time-domain strength information of the signal to be tested and the frequency-domain envelope information of the signal to be tested, the Gerchberg-Saxton algorithm is used to iterate continuously to achieve convergence, and the strength and phase of the signal to be tested are obtained in the time domain and frequency domain. information.

Description

technical field [0001] The invention relates to the field of ultrafast signal measurement, in particular to an intelligent high repetition frequency femtosecond pulse real-time full-field measurement method and system. Background technique [0002] Due to its short duration, high peak power, and wide spectrum, ultrafast pulse lasers are widely used in various disciplines, and high repetition rate ultrafast pulses occupy an important stage. How to realize the real-time measurement of high repetition rate ultrafast pulse full-field information has become a major research content of scientific researchers. [0003] Ultra-fast measurement methods have been developed so far and there are many options: autocorrelation measurement method can measure time-domain intensity, but cannot give important information such as the original waveform and phase of the pulse; time-lens time-domain measurement method has high repetition frequency signal pulse overlap problem (IEEE J.Quantum Elec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01J11/00
CPCG01J11/00H04B10/079
Inventor 杨中民文晓晓孙悦怡韦小明
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap