Supercharge Your Innovation With Domain-Expert AI Agents!

Laser resonator for outputting flattop beam through forward and backward Gaussian oscillation

A technology of laser resonator and laser beam, which is applied in the field of laser resonator and can solve problems such as not being able to obtain the best effect

Inactive Publication Date: 2010-11-24
宁国斌
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the uneven spatial distribution of light intensity, the best results cannot be obtained in the fields of laser irradiation, laser drilling, and laser medical treatment.

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
  • Laser resonator for outputting flattop beam through forward and backward Gaussian oscillation
  • Laser resonator for outputting flattop beam through forward and backward Gaussian oscillation
  • Laser resonator for outputting flattop beam through forward and backward Gaussian oscillation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention is specifically realized like this, see figure 1 or figure 2 As shown, the components of the resonator include a total reflection mirror 1 , a laser gain medium 2 , and an output coupling mirror 3 . The laser gain medium 2 is located between the total reflection mirror 1 and the output coupling mirror 3, and the three are coaxial. Total reflection mirror 1 is made of K8 or K9 optical glass, the reflective surface OO' is a plane or a concave spherical surface with a radius of curvature of 8-10m, diameter Φ10-15mm, thickness 3-5mm, and reflective surface OO' is coated with a 1.06μm high-reflection dielectric film . The laser gain medium 2 is a Nd:YAG crystal rod, Φ5-6mm, length 70-80mm, both ends are plane, coated with 1.06μm anti-reflection coating. The output coupling mirror 3 is an average mirror, which is a flat mirror made of K8 or K9 glass, with a diameter of Φ10-15mm, a thickness of 3-5mm, and a reflective surface coated with 1.06μm. The r...

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 discloses a laser resonator for outputting a flattop beam through forward and backward Gaussian oscillation, which belongs to the technical field of laser devices. It is difficult to generate stable flattop laser beams by the prior art for generating light intensity flattop spatial distribution by light beam homogenization; in addition, an adopted super Gaussian reflector is a soft-edge diaphragm and can modulate the light intensity distribution of the flattop laser beam and destruct the flattop performance of the flattop laser beam. The laser resonator of the invention consists of a total reflector, a laser gain medium and an output coupling reflector, wherein the laser gain medium is positioned between the total reflector and the output coupling reflector and the laser gain medium, the total reflector and the output coupling reflector are coaxial; the output coupling reflector is a mean reflector; an orthopyramid mirror is coaxially arranged on a light path between the total reflector and the laser gain medium; and the reflection surface OO' of the total reflector is positioned at the narrowest part of a zeroth-order Bessel diffraction beam-free area of the orthopyramid mirror. The laser resonator can output a laser beam with flattop spatial distribution light intensity.

Description

technical field [0001] The invention relates to a laser resonator for outputting flat-topped laser beams with positive and negative Gaussian oscillations, capable of outputting laser beams with light intensity in a flat-topped spatial distribution, and belongs to the technical field of laser devices. Background technique [0002] Existing lasers such as solid-state lasers have Gaussian oscillations in their resonator, and the output laser beam is in the direction perpendicular to the beam axis, and the light intensity is Gaussian in spatial distribution. The laser beam is a Gaussian laser beam. The so-called Gaussian spatial distribution is characterized by the strongest light intensity on the beam axis and the weakest edge. Due to the uneven spatial distribution of light intensity, the best results cannot be obtained in the fields of laser irradiation, laser drilling, and laser medical treatment. In order to change this situation, beam homogenization technology, or beam sh...

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 Applications(China)
IPC IPC(8): H01S3/08H01S3/139H01S3/136
Inventor 宁国斌张喜和
Owner 宁国斌
Features
  • R&D
  • 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