Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for accurately adjusting and stabilizing repetition frequency of mode-locked fiber laser

A fiber laser and repetition frequency technology, applied in the laser field, can solve the problems of low efficiency, limited application objects, and complicated repetition frequency adjustment methods, so as to achieve the effect of improving efficiency and reducing difficulty.

Active Publication Date: 2021-07-27
NAT UNIV OF DEFENSE TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems of complex repetition rate adjustment methods in the prior art, low efficiency, and limited application objects, thereby providing a method for accurately adjusting and stabilizing the repetition rate of a mode-locked fiber laser

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
  • Method for accurately adjusting and stabilizing repetition frequency of mode-locked fiber laser
  • Method for accurately adjusting and stabilizing repetition frequency of mode-locked fiber laser
  • Method for accurately adjusting and stabilizing repetition frequency of mode-locked fiber laser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Embodiments of the present invention provide a method for accurately adjusting and stabilizing the repetition frequency of a mode-locked fiber laser, please refer to figure 1 , including the following steps:

[0026] S1: The first step: build and start a mode-locked fiber laser, the resonator of the mode-locked fiber laser has an optical fiber;

[0027] S2: second step: detecting the repetition frequency of the laser pulse output by the mode-locked fiber laser, and judging whether the difference between the detected repetition frequency and the target repetition frequency is within the first preset threshold range;

[0028] S3: The third step: if the difference between the detected repetition frequency and the target repetition frequency exceeds the first preset threshold range, the optical fiber is subjected to shearing and fusion processing, and the shearing and fusion processing includes: cutting off part of the optical fiber and then fusion splicing and shearing en...

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

According to a method for accurately adjusting and stabilizing the repetition frequency of the mode-locked fiber laser, the repetition frequency of the mode-locked fiber laser can be accurately adjusted and stabilized to a target repetition frequency through the combination of fiber shearing, fiber tapering and the control of a control module. According to the method, the repetition frequency of the mode-locked fiber laser can be accurately adjusted with high efficiency, and the applicable object limit is low.

Description

technical field [0001] The invention belongs to the technical field of lasers, in particular to a method for accurately adjusting and stabilizing the repetition frequency of a mode-locked fiber laser. Background technique [0002] A fiber laser is a laser in which a fiber doped with rare earth elements is used as a gain medium. With the help of passive mode-locking technology, a saturable absorber is added to the fiber laser, and the mode-locked fiber laser constructed can obtain ultrashort pulse output in the order of picoseconds and femtoseconds. As the technology of mode-locked fiber lasers becomes more and more mature, mode-locked fiber lasers have been applied in many fields. Among them, in the field of precision metrology such as dual-comb spectroscopy technology, optical frequency divider, and molecular transition spectral line measurement, higher requirements are put forward for the precise adjustment of the repetition frequency of the mode-locked fiber laser. [0...

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 Applications(China)
IPC IPC(8): H01S3/067H01S3/098
CPCH01S3/067H01S3/1109H01S3/1112
Inventor 江天邓清辉殷科张馨宋登辉许中杰
Owner NAT UNIV OF DEFENSE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com