A new thin-sheet laser structure with high pump absorption and high power output

Abstract

The invention relates to a novel thin disk laser structure with high pump absorption and high power output. The technical scheme adopted by the invention is that the pump cascade thin disk laser structure comprises two ceramic frames, a pump source, two thin disks with different gain media by bonding or welding and a straight-through cooling liquid, wherein the ceramic frames are vertically placed, the two thin disks are respectively a thin disk A and a thin disk B, and the thin disk A and the thin disk B are embedded in the ceramic frames in parallel; the area between a connecting surface andthe upper surface of the thin disk A is an area D; and the area between the lower surface of the thin disk A and the upper surface of the thin disk B is an area E. The structure adopts intracavity pumping, and applies a method of pump cascading while improving the pump absorption efficiency, so that the wavelength of secondary pump light is closer to the output wavelength, the quantum loss in thelaser process is greatly reduced, the thermal load in the gain media is further alleviated, the thermal management is effectively carried out, the efficiency of the laser is improved, and the servicelife of the laser is prolonged.

Description

technical field [0001] The present invention relates to a novel thin-chip laser structure with high pump absorption and high power output. This structure realizes high-efficiency absorption of pump light by using methods such as intracavity pumping, pump cascading, and large-surface cooling, and The invention relates to obtaining high-power laser output, belonging to the field of laser manufacturing. Background technique [0002] High-energy solid-state lasers have broad application prospects in advanced industrial manufacturing, high-power physics research, military defense and other fields. Therefore, the technology to achieve high-efficiency absorption, high-power, and high-beam quality laser output is the focus of current solid-state laser research at home and abroad. one. [0003] All high-power solid-state lasers have a critical problem that needs to be solved, namely thermal effects. Research institutions at home and abroad have designed and studied lasers with diff...

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Problems solved by technology

[0008] In view of the deficiencies of existing thin-chip lasers, combined with the method of intracavity pumping and pump cascade, the purpose of the present invention is to design a new-type thin-chip laser, which makes up for the fact that current thin-chip lasers cannot solve the problem of single-block miniaturization. High-power, high-beam-quality laser output blanks, large-scale cooling of a single thin-sheet laser, efficient absorption of pump light, high-power, high-beam quality laser output

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