Check patentability & draft patents in minutes with Patsnap Eureka AI!

A Subclock Ultrashort Pulse Generator

A technology of ultra-short pulse and generator, which is applied in the direction of electric pulse generator circuit, pulse generation, pulse technology, etc. It can solve the problems of complex system structure and pulse width cannot be arbitrarily modulated, and achieve strong detection ability and high consistency performance and reproducibility, high practical value

Active Publication Date: 2019-01-29
NANJING RAYCAN INFORMATION TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The photoelectric ultrashort pulse generated by the ultrashort optical pulse through the optoelectronic device requires an ultrashort laser and a photoelectric converter. The system architecture is relatively complex, and the pulse width cannot be modulated arbitrarily.

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
  • A Subclock Ultrashort Pulse Generator
  • A Subclock Ultrashort Pulse Generator

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0038] Example 1: Electrical pulse at 200Mhz repetition rate with a pulse duration of 1 / 90

[0039] List the parameters of this embodiment 1 processing data here:

[0040] The clock module 100 adopts a 200Mhz active clock;

[0041] The phase-shifting module 200 adopts the digital clock manager of the FPGA to generate a phase-shifted clock of 90 degrees and a constant clock frequency;

[0042] The carry chain module 300 adopts a 90-order effective length carry chain (the actual length is 105 steps), and each stage of the carry chain is 5000 / 90 ps;

[0043] The combinatorial logic module 400 adopts the direct-connected buffer output for the carry chain fanout at the 1-45th order and the 47-90th order, and adopts the XOR logic of the 45th order and the 46th order at the 46th order fanout;

[0044] The coarse clock gating module 500 gates all pulses in a direct connection manner, that is, without adding any effective sequential logic.

example 2

[0045] Example 2: A 200Mhz clock source with a pulse duration of 1 / 90 Electrical pulses repeated at 10 ns intervals and 30 ns intervals

[0046] The parameters for processing data in this application instance 2 are listed here:

[0047] The clock module 100 adopts a 200Mhz active clock;

[0048] The phase-shifting module 200 adopts the digital clock manager of the FPGA to generate a phase-shifted clock of 90 degrees and a constant clock frequency;

[0049] The carry chain module 300 adopts a 90-order effective length carry chain (the actual length is 105 steps), and each stage of the carry chain is 5000 / 90 ps;

[0050]The combinatorial logic module 400 adopts the fan-out of the carry chain at the 1-45th order, the 47-65th order and the 67-90th order to adopt the direct connection buffer output, and adopts the XOR logic of the 45th order and the 46th order at the 46th order fan-out , the XOR logic of the 65th and 66th order carry chains is used in the 66th order fanout;

[0...

example 3

[0052] Example 3: A 200Mhz clock source with a pulse duration of 1 / 90 Electrical pulses repeated at 10 ns intervals and 30 ns intervals

[0053] The parameters for processing data in this application instance 2 are listed here:

[0054] The clock module 100 adopts a 200Mhz active clock;

[0055] The phase-shifting module 200 adopts the digital clock manager of the FPGA to generate a phase-shifted clock of 90 degrees and a constant clock frequency;

[0056] The carry chain module 300 adopts a 90-order effective length carry chain (the actual length is 105 steps), and each stage of the carry chain is 5000 / 90 ps;

[0057] The combinatorial logic module 400 adopts the fan-out of the carry chain at the 1-45th order, the 47-65th order and the 67-90th order and adopts the direct connection buffer output, and the 46th-order combinatorial logic fan-out adopts the 45th-order and 46th-order different Or logic, the XOR logic of the 65th and 66th-order carry chains is used for the 66th-o...

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 relates to a sub-clock ultra-short pulse generator which comprises a clock module, a phase shifting module, a carry chain module, a combinatorial logic module and a rough clock gating module. By adopting the sub-clock ultra-short pulse generator disclosed by the invention, the clock frequency requirements of a digital pulse generator can be effectively reduced, cost of generating a pulse is greatly reduced, and drifting of an analog circuit and inconsistency of circuit parameters are avoided. The sub-clock ultra-short pulse generator is particularly suitable for application places of an ultra-short laser, pulse width modulation communication, biomedical detection and metrology, high energy physical experiments and the like.

Description

technical field [0001] The invention relates to the fields of high-energy physics and particle physics applications, optoelectronic devices, electronic science and technology, and more particularly to a method and device for generating ultrashort pulses. Background technique [0002] Sub-clock ultrashort pulse refers to the electrical pulse whose pulse duration is less than the clock period, especially much less than one-half of the clock period. The electrical pulse may contain a certain repeating pattern, for example, the pulse appears once or multiple times at any position in the cycle , the repetition period can be any number that changes with time, or it can be a superposition of two or more periods. [0003] The existing ultrashort electrical pulse generation methods mainly include: self-excited oscillation / chopper combination analog circuit sub-clock ultrashort pulse generator, high clock frequency driven digital pulse generator, ultrashort optical pulse generated by ...

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): H03K3/013H03K3/017H03K3/02G06F1/08
CPCG06F1/08H03K3/013H03K3/017H03K3/02
Inventor 邓贞宙谢庆国
Owner NANJING RAYCAN INFORMATION TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com