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

Light source suitable for sodium laser guide star

A laser guide star and light source technology, applied in the field of lasers, can solve problems such as complex frequency and line width control systems, and achieve high output power, avoid gas emissions, and good beam quality

Inactive Publication Date: 2013-09-25
NAT UNIV OF DEFENSE TECH
View PDF4 Cites 3 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 provide a light source suitable for sodium laser guide stars, which solves the shortcomings of the prior art light source requiring complex frequency and line width control systems, and the system structure is simple, convenient and efficient

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
  • Light source suitable for sodium laser guide star
  • Light source suitable for sodium laser guide star

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, a light source suitable for a sodium laser guide star according to the present invention includes a pump source 1, a resonant cavity 2 and a gas working chamber 3 containing a gain medium.

[0028] In the present invention, the gain medium is composed of sodium atom gas 33 and inert gas 34, and the inert gas can be helium, neon, argon, krypton or xenon. The inert gas in this embodiment is xenon. Xenon 3 content is 10 18 per cubic centimeter; sodium atom content is 10 12 per cubic centimeter. The mixed gas composed of sodium atom gas and xenon gas has an absorption peak at 566nm. The line width of the absorption companion peak is on the order of nm.

[0029] The pumping source in the present invention can select a suitable laser according to different inert gases in the gain medium and pumping intensity re...

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

The invention belongs to the technical field of a laser and discloses a light source suitable for sodium laser guide star. The light source comprises a pump source used for generating pump light, a gas workroom containing a gain medium and a resonant cavity. The gain medium is a mixed gas formed by a sodium atomic gas and an inert gas together. An excimer formed by the mixed gas is provided with a resonance absorption peak at 589nm and an absorption satellite peak with a wavelength less than 589nm. The wavelength of the pump light is aligned with the absorption satellite peak and pumps the sodium atom and inert gases to a high energy state, and then a sodium atom with the high energy state is generated through decomposition. Under the effect of the resonant cavity, when the sodium atom with high energy state jumps to a ground state, 589nm laser is irradiated. The laser is aligned with a resonant absorption peak of the atomic sodium, and a light source is provided for the sodium laser guide star. According to the light source, there is no complex frequency locking and linewidth control systems, the structure is simple, and the working medium has the advantages of long service life and recycling.

Description

technical field [0001] The invention belongs to the technical field of lasers, in particular to a guide star light source suitable for sodium lasers. Background technique [0002] When the light beam is transmitted in the atmosphere, due to the influence of atmospheric turbulence, the wavefront of the light beam will be distorted, and the impact on astronomical observation is manifested in the decrease of image resolution and the blurring of the observation target. At present, in order to improve the resolution of space target observation, adaptive optics based on artificial guide star technology has been paid more and more attention by researchers. The working principle of the sodium laser guide star adaptive optics system is: use the light emitted by the sodium laser guide star light source to pump the sodium atoms in the sodium layer at a distance of 80 to 120 kilometers from the ground to an excited state, and then emit the sodium atoms spontaneously. The light is the b...

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): H01S5/04H01S5/024H01S5/06H01S5/30
Inventor 王红岩李礼航宁禹岳德胜杨子宁华卫红李文煜许晓军
Owner NAT UNIV OF DEFENSE TECH
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com