A high-power solid-state laser resonator system with automatic output power optimization

A solid-state laser, laser resonator technology, applied in the structure/shape of lasers, laser parts, optical resonators, etc., to achieve the effect of increasing complexity, improving output power, and reducing the difficulty of optical path adjustment

Active Publication Date: 2018-03-02
UNIV OF SCI & TECH OF CHINA
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the existing solid-state laser intracavity aberration correction technology, and to provide an improved laser device for correcting wavefront distortion in the resonator, which can be used without changing the complexity of the laser resonator Under the premise of correcting the distortion of the laser cavity to improve the output power of the laser

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 high-power solid-state laser resonator system with automatic output power optimization
  • A high-power solid-state laser resonator system with automatic output power optimization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 As shown, the present invention includes a laser resonator 5 composed of a deformable mirror 1, a gain medium 2, a pump 3 and an output cavity mirror 4. The laser resonator 5 outputs an unstable or partially unstable laser beam under the influence of thermal effects, and the power The meter 7 measures the output power of the laser resonator as a feedback signal, and the A / D conversion data acquisition card 8 collects the measurement data and inputs them into the main control computer 9. The maximum output power is used as the objective function of the control algorithm optimization, and the mountain climbing method based on the Zernike mode is adopted. The algorithm optimizes the electrode voltage matrix of the deformable mirror, and the optimized electrode voltage signal is amplified by the multi-channel high-voltage am...

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 high-power solid-state laser resonator system that automatically optimizes the output power, including a deformable mirror, a gain medium, an output cavity mirror, a beam splitter, a power meter, a spot detector, a data acquisition card, a high-voltage amplifier, and a main controller. computer. In the present invention, the rear cavity full reflection mirror of the solid-state laser is replaced by a deformable mirror coated with a high-reflectivity dielectric film, and the surface shape change of the deformable mirror is controlled by a mountain-climbing algorithm based on the Zernike mode through the closed-loop feedback of the power meter, and the correction Various high- and low-order aberrations caused by thermal effects can solve the problem of output power drop caused by thermal lens effects in high-power lasers. The invention does not use any beam expansion and contraction system, does not increase the complexity of the laser resonant cavity, and has the advantages of simple structure and convenient control.

Description

technical field [0001] The invention relates to a solid-state laser resonator system, in particular to a high-power solid-state laser resonator system that automatically optimizes the output power. The self-adaptive optics technology in the resonator is used to correct the wavefront distortion caused by thermal effects in the resonator to improve the performance of the laser. output power of the system. Background technique [0002] High-power solid-state lasers are widely used in scientific research, material processing, laser fusion and other fields. The increase of laser power depends on the increase of pump power, and the increase of pump power will lead to serious thermal effects. The distortion caused by the thermal effect causes the output power and beam quality to drop significantly and multi-mode output appears. What is more serious is that when the thermal effect increases to a certain extent, the laser resonator will change from a stable cavity to an unstable cav...

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): H01S3/105H01S3/08
Inventor 褚家如陈俊杰李保庆马剑强刘莹毛宇昕
Owner UNIV OF SCI & TECH OF CHINA
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