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Multiple crystal bar paralleled laser amplifier gain medium

A laser amplifier and gain medium technology, applied in the direction of lasers, laser components, and the structure/shape of active media, can solve the problems of poor optical uniformity and high cost, and achieve low maintenance costs, uniform pumping, and good optical uniformity Effect

Inactive Publication Date: 2011-07-13
ELECTRONICS ENG COLLEGE PLA
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  • Summary
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-crystal rod parallel-connected laser amplifier gain medium to solve the problems of high cost and poor optical uniformity of large-scale laser crystal rod gain medium and tubular laser gain medium in the prior art

Method used

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  • Multiple crystal bar paralleled laser amplifier gain medium
  • Multiple crystal bar paralleled laser amplifier gain medium
  • Multiple crystal bar paralleled laser amplifier gain medium

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Embodiment Construction

[0011] Such as figure 1 , figure 2 shown. The multi-crystal rods are connected to the gain medium of the laser amplifier, including multiple laser crystal rods 1. The laser crystal rods 1 are parallel to each other. The rod ends are 1-1 coplanar.

[0012] A plurality of laser crystal rods 1 are parallel to each other, and are evenly arranged in space to form a ring structure. There is a certain gap between adjacent laser crystal rods 1, and there is a ring structure formed by a single pump lamp 2-1 along the laser crystal rod 1. Central axis placement.

[0013] A plurality of laser crystal rods 1 are parallel to each other, adjacent laser crystal rods 1 are in contact with each other and are tangent to each other, and a plurality of pump lamps 2-2 parallel to the laser crystal rods 1 surround the plurality of laser crystal rods 1 .

[0014] In the present invention, multiple laser crystal rods are connected in parallel to increase the cross-sectional area of ​​the laser g...

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Abstract

The invention discloses a multiple crystal bar paralleled laser amplifier gain medium. A plurality of laser crystal bars are paralleled to amplify the area of the cross section of a laser grain medium, and the cooling and heat dissipation can be carried out through a central channel and slots among the plurality of laser crystal bars. The invention has the characteristics of good optical homogeneity, low cost and good heat dissipation performance in respect to a large-diameter solid round bar laser crystal; and the invention has the advantages of low cost and changeability of local damage in respect to a tubular laser gain medium formed by hollowing out the center of the large-diameter solid round bar laser crystal.

Description

technical field [0001] The invention relates to the field of laser amplifiers, in particular to a gain medium of a polycrystalline rod paralleled to a laser amplifier. Background technique [0002] Achieving high power output is one of the important research directions of solid-state lasers. To increase the output power of solid-state lasers, at present, multi-stage laser amplification technology is generally used. For the Q-switched pulsed laser, with the amplification process, the increase of the laser energy density will lead to various nonlinear effects of the laser medium and transmission medium, such as atmospheric breakdown, self-focusing of the laser crystal, etc., which hinder the further amplification of the laser. The solution to this problem is to expand the beam while zooming in, and keep the power density of the laser within a safe range. Large-sized laser crystal rods are required to amplify and expand the laser beam. On the one hand, large-sized crystal rod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/07H01S3/092
Inventor 聂劲松秦树军
Owner ELECTRONICS ENG COLLEGE PLA
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