8-shaped femtosecond fiber laser

A femtosecond optical fiber and laser technology, which is applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problem of single function and achieve the effect of short pulse width

Pending Publication Date: 2022-06-03
LASER RES INST OF SHANDONG ACAD OF SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The double-pass grating pair can adjust the dispersion, but its role in

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
  • 8-shaped femtosecond fiber laser
  • 8-shaped femtosecond fiber laser
  • 8-shaped femtosecond fiber laser

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] The nonlinear fiber loop 2 includes a second gain fiber 21 and a second wavelength division multiplexer 22 arranged in sequence, and the second pump semiconductor laser 23 passes through the second pump protector 24 and the second wavelength division multiplexer 22. The second gain fiber 21 and the second wavelength division multiplexer 22 are respectively connected to the port b and the port c of the four-port fiber coupler 3 through the fiber.

[0029]The second fiber collimator 14 , the output fiber coupler 15 , the first wavelength division multiplexer 16 , the first ytterbium-doped fiber 19 and the isolator 10 are all connected by optical fibers. The first pumping semiconductor laser 17 , the first The pump protector 18 and the first wavelength division multiplexer 16 are connected by optical fibers, the second gain fiber 21 and the second wavelength division multiplexer 22 are connected by optical fibers, and the second pump semiconductor laser 23, the first The s...

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

PropertyMeasurementUnit
Core diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Lengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to the field of femtosecond optical fiber lasers, and discloses an 8-shaped femtosecond optical fiber laser which comprises a main optical fiber loop and a nonlinear optical fiber loop which are connected through a four-port optical fiber coupler. The main optical fiber loop comprises a first optical fiber collimator, a first transmission grating, a second transmission grating, a second optical fiber collimator, an output optical fiber coupler, a first wavelength division multiplexer, a first ytterbium-doped optical fiber and an isolator which are arranged in sequence; the first pumping semiconductor laser is connected with the first wavelength division multiplexer through the first pumping protector; the nonlinear optical fiber loop comprises a second gain optical fiber and a second wavelength division multiplexer which are arranged in sequence; the second pumping semiconductor laser is connected with the second wavelength division multiplexer through a second pumping protector; the one-way grating pair is additionally arranged in a main optical fiber loop of the laser and is combined with the collimator, so that the effects of adjusting dispersion, limiting spectral bandwidth and adjusting central wavelength are achieved, output femtosecond laser has shorter pulse width, and the central wavelength is tunable.

Description

technical field [0001] The invention relates to the field of femtosecond fiber lasers, in particular to a figure-eight femtosecond fiber laser. Background technique [0002] Femtosecond laser refers to the pulse width in femtoseconds (10 -15 s) order of pulsed lasers. Compared with traditional continuous laser and long-pulse laser, femtosecond laser has the characteristics of extremely short pulse width, high peak power, and wide coherent spectrum. Research fields, as well as national production fields such as material precision processing, are being widely used. [0003] Femtosecond lasers are mainly generated by mode-locked lasers. Mode-locked lasers are mainly divided into mode-locked solid-state lasers and mode-locked fiber lasers. Compared with femtosecond mode-locked solid-state lasers, femtosecond mode-locked fiber lasers have become a powerful way to achieve large-scale applications of femtosecond lasers due to their compact size, high stability, easy control of ...

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
IPC IPC(8): H01S3/08H01S3/11H01S3/067H01S3/07
CPCH01S3/06791H01S3/0675H01S3/08086H01S3/11H01S3/08004H01S3/07
Inventor 赵坤张振振蒋丽媛刘嘉
Owner LASER RES INST OF SHANDONG ACAD OF SCI
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