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

Side surface pumped thin disk laser and method for making same

A thin-sheet laser and side-pumped technology, which is applied in lasers, laser components, phonon exciters, etc., can solve the problems of low edge pumping efficiency and low laser efficiency, and achieve simple structure, low cost, and mechanical stability Good results

Inactive Publication Date: 2005-09-21
BEIJING UNIV OF TECH
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the YAG crystal sheet 13 doped with Yb only absorbs part of the pump light, and the pump light and the oscillation laser in the YAG crystal sheet 13 doped with Yb only partially match, the efficiency of the laser is not high, and the efficiency of edge pumping is higher than that of end pumping. Low

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
  • Side surface pumped thin disk laser and method for making same
  • Side surface pumped thin disk laser and method for making same
  • Side surface pumped thin disk laser and method for making same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The design drawing of the present invention is as follows image 3 shown. The center is a doped gain medium circular thin crystal, the outside is a regular hexagonal non-doped irregular structure crystal, there is a cylindrical hole in the center, the outer regular hexagon is thick, and the middle cylindrical hole is thin, and its symmetrical section is a symmetrical isosceles trapezoid. Yb:YAG crystal is selected as the cylindrical flake crystal of doped gain medium. YAG is selected for the undoped irregular structure crystal. The doped gain medium wafer crystal (with a doping concentration of 3 at%) and the undoped irregular structure crystal are tightly bonded by thermal bonding.

[0039] The preparation method of the doped gain medium wafer crystal and the non-doped irregular structure crystal is as follows: the first step, the two bottom surfaces (thickness 1.0mm) of the doped gain medium wafer crystal and the side surface (diameter 5mm positive) of the wafer cry...

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

A solid laser contains LD array, heat sink adhered crystal chip, coupling output mirror, wherein the crystal chip has gain medium doped column shape thin crystal in center and regular n-polygon non-doped irregular structure crystal in outside, which has a column hole in center, n is not less than 6 and is even number, the surface of column shape thin crystal plated with oscillation all reflection film and adhered with micro-pass cooling heat sink, n number of LD arrays fixed on outside of non-doped irregular structure crystal. Said invention has high laser power output, simplified pumping optical structure, fine mechanical stability and radiation ability.

Description

Technical field: [0001] A side-pumped thin-film laser and a preparation method thereof belong to the technical field of solid-state lasers. Background technique: [0002] Semiconductor-pumped solid-state lasers are widely used in information processing, medical treatment, material processing and national defense. Semiconductor-pumped solid-state lasers include fiber lasers, rod lasers, slab lasers, and thin-film lasers. [0003] With the continuous progress of semiconductor technology and the reduction of cost, semiconductor-pumped solid-state lasers have developed rapidly, and the continuous output of both traditional round rod and slab lasers has reached 1000W. But in general high-power rod-shaped solid-state lasers, the thermal lensing effect and thermally induced stress birefringence produced by the laser crystal during pumping are serious problems. In order to reduce the thermal lensing effect, lasers with structures such as slabs and sheets have been developed. Howe...

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): H01S3/042H01S3/16
Inventor 李强房明星丁小艇
Owner BEIJING UNIV OF 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