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

An automatic alignment method of the optical path of an off-axis eight-pass amplified laser system

An automatic collimation and laser system technology, applied in the directions of lasers, laser parts, circuits, etc., can solve the problems of beam deviation from the design path, affecting the quality of the output beam, and the position of the filter cannot pass through holes smoothly, and achieves high collimation accuracy. , the effect of convenient operation

Active Publication Date: 2020-12-18
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the multi-pass laser system is transferred to actual operation after offline debugging, due to the influence of environmental temperature changes, mirror mechanical structure creep, foundation and support frame micro-vibration, pointing drift of injected pulse laser and other random factors, the Causes the beam to deviate from the design path, cannot pass through the hole smoothly at the filter position, and seriously affects the quality of the output beam

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
  • An automatic alignment method of the optical path of an off-axis eight-pass amplified laser system
  • An automatic alignment method of the optical path of an off-axis eight-pass amplified laser system
  • An automatic alignment method of the optical path of an off-axis eight-pass amplified laser system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, an optical path automatic collimation method of an off-axis eight-pass amplifying laser system includes the following steps:

[0038] S1: Push in and push out the negative lens at different positions in the optical path, collect the image of the small hole in the spatial filter, and adjust the plane mirror at different positions in the optical path according to the position deviation of the hole image, and realize the eight-pass laser amplification system segment by segment. Optical far-field automatic collimation.

[0039] S2: Push in and push out the near-field collimation mark 43 at the reflection cavity mirror, and configure a near-field photodetector 42 at the output end of the eight-pass amplifying laser system, and adjust the plane mirrors at different positions in the optical path to make the near-field The collimation mark coincides with the central pixel coordinates of the near-field image of the light beam to realize near-field aut...

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 relates to an optical path automatic collimation method of an off-axis eight-pass amplification laser system. The invention belongs to the technical field of optical path collimation. Anegative lens is pushed in and out of a light path; a far-field photoelectric detector is adopted to obtain a hole image corresponding to a corresponding small hole of a first spatial filter in the light path; planar mirrors at different positions in the light path are fed back and adjusted; the far-field collimation of the light path can be realized; meanwhile, a near-field collimation mark is pushed in and out from a reflection cavity mirror; by adjusting the plane mirrors at different positions in the light path, the near-field collimation mark coincides with the center pixel coordinate ofa light beam near-field image, the near-field automatic collimation of the light path is achieved, the method has the advantages of being high in collimation precision and convenient to operate, and an important technical guarantee can be provided for long-term stable operation of the off-axis eight-pass amplification laser system.

Description

technical field [0001] The invention belongs to the technical field of optical path alignment, and in particular relates to an optical path automatic alignment method of an off-axis eight-pass amplifying laser system. Background technique [0002] Multi-pass amplification technology has been widely used in the energy amplification process of laser pulses, which greatly simplifies the structure of the amplification optical path. Patent application: an off-axis eight-pass laser amplifier (application number: 201710589818.5, application publication number: CN107196182A), and Off-axis eight-pass neodymium glass laser amplifier with high efficiency and excellent energy stability (Applied Optics, Vol.57, 2018, 8727-8732) disclosed an off-axis eight-pass amplified laser system, which can achieve high energy extraction efficiency, high energy output stability, and excellent pulse signal-to-noise ratio characteristics. However, when the multi-pass laser system is transferred to actu...

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): H01S3/10H01S3/106
CPCH01S3/10023H01S3/106
Inventor 代万俊曾发张晓璐薛峤谢旭东高松姚珂唐军范琛田晓琳梁樾李森
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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