Rotary disc type solid-state laser and water cooling method thereof

Abstract

The invention discloses a rotary disc type solid-state laser. The solid-state laser comprises a pump source (80), a coupling system (81), a gain medium (10) and a water cooling mechanism (101), wherein the pump source (80), the coupling system (81) and the gain medium (10) are in optical path connection in sequence, the pump light of the pump source (80) shoots into a gain region (104) at the edgeof the gain medium (10), the gain medium (10) rotates around the center of the gain region (104), and the direction of the gain medium (10) is kept unchanged at the same time; and the side surface ofthe gain medium (10) is sealed in the water cooling mechanism (101) and directly contacted with a cooling liquid in the water cooling mechanism (101) so as to take away heat in the gain medium (10).The invention further discloses a water cooling method of the laser. According to the solid-state laser of the invention, a water-cooled disc replaces a fixed gain medium of the general end-pumped laser, so that the injection pump power is greatly improved. Meanwhile, the thermal effect bottleneck of the solid-state laser is avoided, and the output power of the laser and the amplification rate ofa laser amplifier are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of solid-state lasers, and more specifically relates to a turntable solid-state laser and a water cooling method thereof. Background technique [0002] Solid-state lasers are divided into fiber optics, round rods, slabs, disks, and microchips according to the shape of the solid gain medium. These different types of lasers have different cooling structures. For solid-state lasers, the pump light brings energy to the gain medium while also bringing waste heat to the gain medium. How to cool the solid-state laser has become an urgent problem in the field of solid-state lasers. [0003] In order to solve the cooling problem of solid-state lasers, some scholars have proposed a gain medium rotating solid-state laser, which is characterized in that the solid-state laser gain medium in this type of solid-state laser is in a state of continuous rotation during operation. The gain medium of this type of solid-state l...

AI Technical Summary

Problems solved by technology

However, when the solid gain medium rotates, the water-cooling mechanism must also rotate synchronously, which will inevitably cause the inlet and outlet pipes of the water-cooling mechanism to rotate together, and the inlet and outlet pipes are easily entangled, making it difficult to achieve effective cooling of the solid gain medium.

Therefore, the technical bottleneck of the rotating gain medium solid-state laser is that the rotating solid gain medium is difficult to achieve water cooling

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