A surface gain lath medium with a high packing ratio and a manufacturing method thereof

A technology of filling ratio and surface layer, applied in active dielectric materials, laser components, electrical components, etc., can solve problems such as poor beam quality, achieve strong heat dissipation, high beam quality, and avoid impact

Inactive Publication Date: 2017-05-31
11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under high-power pumping of this laser, due to the wide working medium and relatively large thickness of the slab solid-state laser, there is still a certain thermal lens effect, and the beam quality in the width direction of the slab is poor.

Method used

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  • A surface gain lath medium with a high packing ratio and a manufacturing method thereof
  • A surface gain lath medium with a high packing ratio and a manufacturing method thereof
  • A surface gain lath medium with a high packing ratio and a manufacturing method thereof

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preparation example Construction

[0039] When the host material is a laser crystal, according to the method embodiment of the present invention, a method for preparing a surface layer gain slab medium with a high filling ratio is provided, Figure 4 It is a flowchart of a method for preparing a slatted medium with a high filling ratio surface layer gain according to a method embodiment of the present invention, such as Figure 4 As shown, according to the method embodiment of the present invention, the preparation method of the lath medium with high filling ratio surface layer gain includes the following treatments:

[0040] Step 401, cutting and polishing the doped single crystal plate to obtain an upper doped layer and a lower doped layer respectively, wherein the doped single crystal plate is a laser crystal doped with active ions;

[0041] Step 402, selecting a first non-doped single crystal plate, and bonding the horizontal plane of the upper doped layer to the horizontal plane of the first non-doped sing...

example 1

[0054] Taking Nd:YAG material as an example, the steps to realize the high filling ratio surface layer gain slab medium are as follows: using the method of single crystal diffusion bonding, first doping a finely polished Nd with a size of 96mm×26mm×1.2mm with 0.8at % Nd:YAG single crystal plate and a finely polished undoped YAG single crystal plate with a size of 96mm×26mm×3.5mm are bonded on a large surface of 96mm×26mm to obtain a YAG-Nd:YAG structure doped with Nd:YAG For the single crystal plate 1, the non-doped YAG single crystal part of the Nd:YAG single crystal plate 1 is thinned to 3 mm, and finely polished. Then another finely polished Nd-doped 0.8at% Nd:YAG single crystal plate with a size of 96mm×26mm×1.2mm and the non-doped YAG single crystal surface of Nd:YAG single crystal plate 1 were 96mm×26mm The large surface is bonded to obtain the Nd:YAG single crystal plate 2 of the Nd:YAG-YAG-Nd:YAG structure. The two ends of the Nd:YAG single crystal plate 2 are finely ...

example 2

[0056] The steps of adopting the ceramic sintering process to realize the high filling ratio surface layer gain slab medium are: first, prepare two YAG ceramic blanks with a size of 22mm×26mm×5.4mm, and one YAG ceramic blank with a size of 96mm×26mm×3mm, 96mm×26mm×1.2 mm of Nd doped with 1.2at% Nd: two pieces of YAG ceramic blanks, five blanks according to figure 1 Arrange and combine in the order shown and press them together directly, then sinter the blank according to the laser ceramic sintering process, after forming, cut the YAG—Nd:YAG—YAG ceramic part on both sides to 0.8mm, finely polish, and cut the end into cloth Ruster angle and required slat length, finely polished. The final Nd:YAG ceramic size is 136mm x 26mm x 4.6mm.

[0057] The innovatively designed high filling ratio surface gain slab medium of the present invention aims at the structural characteristics of the surface gain slab medium, and by rationally designing the doping area and cutting angle of the slab...

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Abstract

The invention discloses a surface gain lath medium with a high packing ratio and a manufacturing method thereof. The surface gain lath medium with the high packing ratio comprises a composite region and two non-doped regions respectively located at the left and right ends of the composite region. The composite region comprises three layers which are sequentially an upper doped layer, a non-doped layer and a lower doped layer sequentially from the top to the bottom. The non-doped regions and the non-doped layer are composed of matrix materials which are not doped with active ions. The upper and lower doped layers are composed of matrix materials doped with active ions. According to the invention, through reasonable design of the doped regions and the cutting angle of the lath laser medium, a gain region in a lath gets fully utilized to realize effective separating of pumping laser from oscillation laser and effectively avoid influences of a dichroic mirror on a laser system. Further, the surface gain lath medium with the high packing ratio of the invention has extremely strong heat radiation capability and facilitates realization of a highly-efficient, high-power and high-beam-quality laser output.

Description

technical field [0001] The invention relates to the field of all solid-state lasers, in particular to a surface layer gain slab medium with a high filling ratio and a preparation method thereof. Background technique [0002] The thermal effect of the all-solid-state laser is mainly produced by the laser medium, laser diode and other optical components, among which the thermal effect produced by the laser medium has the most obvious influence on the laser. In an all-solid-state laser, only part of the pumping energy input into the laser medium becomes the laser output, while the rest of the energy is converted into heat loss. The reasons for the heat loss mainly include the following three aspects: 1) Non-radiative transition of the pump energy band in the all-solid-state laser. The pump energy band of the laser medium and the metastable energy level undergo a non-radiative transition, and the energy is transferred to the laser medium; 2) Due to the fluorescence quantum effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16
CPCH01S3/1601H01S3/1685
Inventor 刘洋陈露唐晓军王超刘磊梁兴波赵鸿王文涛王钢
Owner 11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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