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

Laser regenerative amplifier based on disc gain medium

A regenerative amplifier, gain medium technology, applied in lasers, laser parts, structure/shape of active medium, etc., can solve the problems of inconsistent divergence angle and beam quality, difficulty in high average power output, and low laser beam quality, etc. Achieve the effect of linearization and high pulse stability, reducing thermal lens effect, and high beam quality

Pending Publication Date: 2021-06-01
苏州中辉激光科技有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal lens effect of the rod-shaped gain medium regenerative amplification resonator is very serious at high power, it is difficult to achieve high average power output and the quality of the laser beam is not high due to the influence of thermal distortion
Although the slab gain medium regenerative amplification resonator can also achieve high power and large single pulse energy amplification, because of the elongated shape of the slab gain medium itself, its output spot is also elongated, and its divergence angle in the XY direction and The beam quality is inconsistent, requiring complex shaping optical path to achieve circular spot output

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 regenerative amplifier based on disc gain medium
  • Laser regenerative amplifier based on disc gain medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0028] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0029] attached figure 1 It is a structural schematic diagram of a laser regenerative amplifier based on a disk gain medium in the present invention, including a seed light source 9 , a fiber-coupled collimation module 10 , a regenerative amplifier resonant cavity, a pump...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a laser regenerative amplifier based on a disc gain medium. The laser regenerative amplifier comprises a seed light source, an optical fiber coupling collimation module, a regenerative amplification resonant cavity, a pumping module and an optical isolator, wherein the regenerative amplification resonant cavity comprises a first polaroid, a Faraday rotator, a 1 / 2 wave plate, a second polaroid, a Pockels cell, a 1 / 4 wave plate, a first cavity mirror, a third cavity mirror, a fourth cavity mirror, a fifth cavity mirror, a disc gain medium, a seventh cavity mirror and an eighth cavity mirror, the first cavity mirror, the third cavity mirror and the fifth cavity mirror are concave mirrors, and the fourth cavity mirror, the seventh cavity mirror and the eighth cavity mirror are plane mirrors. Seed light oscillates in the regenerative amplification resonant cavity in a reciprocating mode, energy is amplified after the seed light passes through the disc gain medium every time, the lower thermal lens effect is achieved, the amplification efficiency linearization degree and the pulse stability are high, and extremely high light beam quality can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of laser pulse amplification, in particular to a laser regenerative amplifier based on a disk gain medium. Background technique [0002] Due to the increasing demand for laser fine processing, ultrafast (picosecond / femtosecond) lasers are an indispensable tool. At present, ultrafast laser pulses are mainly realized by mode-locking technology. The average power is generally in milliwatts, and the single pulse energy is in the order of nanojoules, which limits its application in the field of industrial processing. In order to obtain a higher power ultrafast laser, it is necessary to amplify the seed laser output from the mode-locked oscillator cavity. At present, there are two methods of ultrafast laser pulses generated by mode-locking technology: traveling wave amplification and regenerative amplification. Traveling wave amplification means that the seed laser passes through the laser gain medium in a single...

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): H01S3/06H01S3/042
CPCH01S3/042H01S3/0604
Inventor 颜永振
Owner 苏州中辉激光科技有限公司
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