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Laser amplification system

A laser amplification and laser medium technology, applied in the direction of lasers, laser parts, laser parts, etc., can solve the problems of inability to make large-sized slatted media, limit the size of slatted media, and limit the output laser energy, etc. Improve output beam quality, small thickness and low thermal effect

Active Publication Date: 2021-08-13
四川光天下激光科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Crystal growth generally adopts the pulling method. This crystal growth process limits the size of the slab medium, and it is impossible to make a large-sized slab medium, which limits the output laser energy.

Method used

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  • Laser amplification system
  • Laser amplification system

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Embodiment 1

[0027] This embodiment proposes a laser amplification system with a structure such as figure 1 As shown, it includes: seed source 1, pump source 2, gain medium group 3 composed of 16 gain medium units, heat sink 4, first dichroic mirror 5-1, second dichroic mirror 5-2, polarizer 6 , total reflection mirror 7 and 1 / 2 wave plate 8.

[0028] The 16 gain medium units are symmetrically arranged on both sides of the heat sink 4 in turn, the 8 gain medium units on the upper side of the heat sink 4 are numbered from 001 to 008, and the 8 gain medium units on the lower side are the same as the 001 on the upper side There is a one-to-one correspondence between No. 008 and No. 008 gain medium units, and they are numbered sequentially from No. 016 to No. 009;

[0029] The gain medium unit is composed of a thin sheet gain medium bottom doped with active ions and a pure matrix laser medium top undoped with active ions, and the bottom of the thin sheet gain medium connects with the heat sin...

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Abstract

The invention provides a laser amplification system, and belongs to the field of solid lasers. The system comprises a seed source, a pumping source, a gain medium group consisting of a plurality of gain medium units, a pumping light coupling system and a heat sink, the gain medium units are sequentially distributed on two side surfaces of the heat sink symmetrically, each gain medium unit is composed of a thin-sheet gain medium bottom doped with active ions and a triangular-prism-shaped laser medium top which is not doped with active ions and has an isosceles-triangle-shaped bottom surface, the interior of the heat sink is of a columnar array structure, and cooling liquid flows in gaps of the columnar array structure; seed light emitted by the seed source enters the end gain medium unit within the range of + / -2 degrees of the Brewster angle, enters the next gain medium unit within the range of + / -2 degrees of the Brewster angle after being emitted, and is periodically propagated in the gain medium group in sequence; and pumping light emitted by the pumping source pumps the gain medium group through a pumping light coupling system. While the size of the gain medium is enlarged, the bending-resistant effect is achieved, and high-energy laser output with high light beam quality is achieved.

Description

technical field [0001] The invention belongs to the field of solid-state lasers, and in particular relates to a laser amplification system. Background technique [0002] High-energy solid-state lasers are more and more widely used in industrial applications, scientific research, national defense, medical and other fields. The laser amplification system is the key to obtaining high-energy laser output. A high-energy pump source will inevitably cause the gain medium to generate a lot of waste heat during operation, which requires effective thermal management of the gain medium to ensure the stability of the beam quality and laser efficiency. The study found that high-energy laser amplifiers can use multi-chip dispersed energy storage to reduce the impact of large-size gain media and high material emission cross-sections on energy storage efficiency, and at the same time meet the thermal management requirements for energy storage density at repetition frequencies. [0003] Bot...

Claims

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Application Information

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IPC IPC(8): H01S3/06H01S3/07H01S3/04H01S3/042
CPCH01S3/0606H01S3/07H01S3/0407H01S3/042
Inventor 彭艳红杨毅
Owner 四川光天下激光科技有限公司
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