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

A Kerr lens self-mode-locked Ti:sapphire laser based on blue laser diode pumping

A technology of laser diodes and gem lasers, applied in lasers, laser parts, phonon exciters, etc., can solve the problem of poor beam quality, difficult high power output, and comprehensive output indicators such as pulse width and average power that do not reach full solid-state times. frequency laser pump output indicators and other issues, to achieve the effects of low cost, simple and compact structure, broad application prospects and commercial value

Active Publication Date: 2021-03-19
XIDIAN UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the comprehensive output indicators such as pulse width and average power have not reached the output indicators of the Ti:Sapphire laser pumped by the all-solid-state frequency doubling laser, so there is still a lot of room for development of the LD pumped Ti:Sapphire laser.
[0003] In summary, the existing technical problems are: the maximum output power of a single multi-mode blue LD is 3.5 W, and the maximum output power of a multi-mode green LD is 1.5 W. It is difficult to achieve high power output by pumping Ti:Sapphire with a single LD, so Need to use LD double-sided pumping or combine multiple LDs spatially
Secondly, the quality of the LD beam is poor, and it is necessary to reshape the beam and focus it into the crystal, so that the pump light and the intracavity laser have a better mode matching, in order to realize the self-mode-locked operation of the Kerr lens

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 Kerr lens self-mode-locked Ti:sapphire laser based on blue laser diode pumping
  • A Kerr lens self-mode-locked Ti:sapphire laser based on blue laser diode pumping
  • A Kerr lens self-mode-locked Ti:sapphire laser based on blue laser diode pumping

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0055] exist figure 1 Among them, the beam of the first 450 nm blue laser diode 1 passes through the aspheric lens 4 to make the fast and slow axes collimated; then the collimated beam passes through the first plano-concave cylindrical lens 5 and the first plano-convex cylindrical lens 8 in turn to make The slow axis of the beam is expanded and collimated; the collimated beam is reflected by the first 450 nm high mirror 9 to the third 450 nm high mirror 11; the second 450 nm blue laser diode 2 beam passes through the second aspheric lens 3 The fast and slow axes are collimated; then the collimated beam passes through the second plano-concave cylindrical lens 6 and the second plano-convex cylindrical lens 7 in turn to expand and collimate the slow axis of the beam; the collimated beam passes through The first 450 nm high-reflection mirror 10 reflects to the third 450-nm high-reflection mirror 11, which is spatially coincident with the beam reflected by the first 450 nm high-ref...

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
widthaaaaaaaaaa
wavelengthaaaaaaaaaa
poweraaaaaaaaaa
Login to View More

Abstract

The invention discloses a Kerr lens self-mode-locked titanium sapphire laser based on novel blue laser diode pumping, Its structural features are: The novel blue laser diode-pumped Kerr lens self-mode-locked titanium sapphire laser comprises a blue laser diode, an aspherical lens, a cylindrical concave lens, a cylindrical convex lens, a 450 nm high-reflector, a plano-convex focusing mirror, a concave mirror, a titanium sapphire crystal, a coupling output mirror, a fused silica triprism and a laser high-reflector. The laser diode has the advantages of small volume, simple structure, high stability, low cost and the like, and is used for replacing the pump source of the traditional titanium sapphire femtosecond oscillator-all-solid-state frequency doubling laser. Therefore, the novel blue laser diode-pumped Kerr lens self-mode-locked Ti: sapphire laser provided by the invention has the advantages of compact, simple structure, stable operation, low cost and the like.

Description

technical field [0001] The invention belongs to the technical field of ultrafast lasers, and in particular relates to a Kerr lens self-mode-locked titanium sapphire laser based on blue-light laser diode pumping. Background technique [0002] Shorter pulse widths have been pursued and hoped for since the inception of lasers. Fast time resolution is possible thanks to ultra-short pulse widths. Similar to how high-speed cameras capture high-speed motion, ultra-short-pulse lasers can "freeze" ultra-fast motions like molecules or electrons at a certain moment, so they can be detected Electro-optical sampling of chemical reaction kinetics and high-speed moving electrons, and other femtosecond kinetic processes. The kinetics of molecular decomposition and more complex chemical reaction kinetics can be indirectly probed using ultrashort pulsed lasers. Harnessing ultra-intense lasers offers a whole new range of extreme physical conditions that can only be found in nature in the int...

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): H01S3/094H01S3/0941H01S3/098
CPCH01S3/094049H01S3/0941H01S3/1118
Inventor 朱江峰刘寒张大成田文龙王阁阳魏志义
Owner XIDIAN UNIV
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