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Side pump conductive cooling rectangle film laser

A thin-sheet laser and side-pumped technology, applied in the laser field

Inactive Publication Date: 2009-07-29
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, circular thin-chip solid-state lasers have certain limitations in terms of power upgrades

Method used

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  • Side pump conductive cooling rectangle film laser
  • Side pump conductive cooling rectangle film laser
  • Side pump conductive cooling rectangle film laser

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with drawings and embodiments.

[0018] 1. Use a rectangular sheet gain medium 7 with a size of 0.3mm×5mm×50mm, and adjust the resonant cavity mirror 8 to such as figure 2 location shown. The side (5mm×50mm) in contact with the heat sink 1 is coated with a high reflection film for oscillating light, which can be obtained as figure 2 A hybrid cavity side-pumped rectangular sheet laser is shown.

[0019] 2. Use a rectangular sheet gain medium 7 with a size of 0.3mm×5mm×50mm, and adjust the cavity mirror 8 to image 3 location shown. The side (5mm×50mm) in contact with the heat sink 1 is coated with a high reflection film for oscillating light, which can be obtained as image 3 A hybrid cavity side-pumped rectangular sheet laser is shown.

[0020] 3. Combining the rectangular sheet with the stable cavity, adopting the excitation method of side pumping, the schematic diagram of its structure is show...

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Abstract

The invention relates to a side-pumped thermal conduction cooling rectangular thin slice all-solid-state laser, which belongs to the technical field of lasers. The laser of the invention uses a rectangular sheet as the gain medium, the thickness of the gain medium is 0.1-5mm, the width is 3-50mm, and the length is 5-500mm. The side pumping method is adopted, and the heat conduction method is used for cooling. The resonant cavity can be a stable cavity or a stable-unstable hybrid cavity. By using a rectangular sheet gain medium, the purpose of increasing the gain volume can be achieved by expanding the size of the gain medium in the length direction of the gain medium. At the same time, the unstable resonant cavity structure is adopted in this direction, and the output power can be improved by increasing the length of the gain medium without increasing the volume of the laser and ensuring the quality of the beam. Therefore, the power upgrade of the laser device can be effectively realized.

Description

technical field [0001] The invention is an all-solid-state laser that uses a rectangular sheet as a gain medium, adopts a side pumping mode, and uses heat conduction for cooling. It belongs to the field of laser technology. Background technique [0002] Thin-chip all-solid-state laser is an all-solid-state laser device capable of outputting high-power, high-efficiency, high-beam-quality laser beams, and occupies an important position in the field of high-power solid-state lasers. This kind of laser generally uses a laser crystal with a diameter of several millimeters and a thickness of 100-500 microns as the working substance, and fixes it on the heat sink by metal welding or optical glue to achieve a good cooling effect. The pump light is obliquely incident on the working substance, and the schematic diagram of its structure is shown in figure 1 shown. At present, the continuous output power of a single sheet has exceeded 5KW. At present, the shape of the sheet gain med...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/08H01S3/042H01S3/0941H01S3/16
Inventor 张恒利闫莹王艳华辛建国
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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