Neodymium and yttrium doped calcium fluoride laser amplifier of laser diode pumping helium cooling

A laser diode, neodymium yttrium calcium fluoride technology, applied in the field of neodymium yttrium calcium fluoride laser amplifiers, can solve the problems of uneven pump power density, restricted laser power, large temperature gradient, etc., and achieve scattering loss and optical distortion. Small, ensure uniformity and consistency, and improve efficiency

Inactive Publication Date: 2014-04-16
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in terms of end-pumped laser amplifiers, the crystal structure with a single doping concentration is mainly used at home and abroad. While improving the absorption efficiency of pump light, it also has the problem of

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
  • Neodymium and yttrium doped calcium fluoride laser amplifier of laser diode pumping helium cooling
  • Neodymium and yttrium doped calcium fluoride laser amplifier of laser diode pumping helium cooling
  • Neodymium and yttrium doped calcium fluoride laser amplifier of laser diode pumping helium cooling

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] The present invention will be further described below in conjunction with the embodiments and drawings, but the protection scope of the present invention should not be limited by this.

[0026] See first figure 1 , figure 1 It is a block diagram of the overall structure of an embodiment of the laser diode pumped helium-cooled neodymium-doped calcium fluoride mixed crystal laser amplifier of the present invention. It can be seen from the figure that the laser diode-pumped helium-cooled neodymium-doped calcium fluoride mixed crystal laser amplifier of the present invention is composed of a pump source, a coupling lens group, a beam splitter and an amplification gain medium. The amplification gain medium is The combined laser gain medium 3; the combined laser gain medium 3 is placed perpendicular to the direction orthogonal to the laser light, and the pump source includes a second laser beam placed on the left and right sides of the combined laser gain medium 3. An area array...

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 neodymium and yttrium doped calcium fluoride laser amplifier of laser diode pumping helium cooling is composed of a pumping source, a coupling lens set, a spectroscope and an amplification gain medium. The amplification gain medium is actively cooled through high-speed helium, the temperature distribution evenness of the amplification gain medium is improved, the largest thermal stress is reduced, and the thermal management effect is improved; meanwhile, spontaneous emission amplification is reduced, energy storage efficiency is improved, lasers with high average power, high repetition frequency and high beam quality can be outputted, and the neodymium and yttrium doped calcium fluoride laser amplifier has the advantages of being compact in structure, good in reliability and high in efficiency.

Description

technical field [0001] The invention relates to repetition frequency and high power laser amplifiers, in particular to a laser diode pumped helium gas cooled Nd-doped yttrium calcium fluoride laser amplifier. Background technique [0002] Future energy has always been a major issue of common concern to all countries in the world, and fusion power plants are a solution that can be considered. On the one hand, fusion does not produce chemical pollution or greenhouse gases, and is inherently safe and clean. On the other hand, fusion power plants also produce hydrogen, which can be used for transportation in petrochemical and fuel cell functions, thereby reducing dependence on imported oil , so fusion research has always been a hot topic in the field of scientific research. From the "Janus" laser system in the mid-1970s. Large neodymium glass laser systems pumped by flash lamps have come a long way from what is now the National Ignition Facility (NIF). However, their overall ...

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): H01S3/16H01S3/0941H01S3/042
Inventor 黄文发李学春王江峰徐鹏翔张玉奇彭宇杰
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE 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