Radiating device of laser

Abstract

The invention discloses a radiating device of a laser. The radiating device comprises a fan, wherein the fan is arranged on a fan seat; the fan seat is a concave groove structural plate II of which one end is provided with a comb-shaped structure; the fan seat is arranged on a base plate; the base plate is a concave groove structural plate I of which one end is provided with a hollow structure; the base plate is further provided with an outer shell body which is a concave groove structural plate III in a long U-shaped structure; a front end cover and a back end cover are respectively arranged at the two ends of the outer shell body; a circular hole for regulating the output of laser is formed in the front end cover; and an air hole is formed in the back end cover. The radiating device of the laser of the invention has the characteristics of large convection area, high speed, good convection effect, large heat-conductive area, obvious radiation, simple and compact structure, low manufacturing cost and easy popularization and use.

Description

technical field [0001] The invention relates to a heat dissipation device, in particular to a heat dissipation device for a laser. Background technique [0002] During the working process of the all-solid-state laser, the pump light is focused in the laser crystal to provide energy for the laser oscillation, but factors such as quantum defects and non-radiative transitions in the crystal cause a large amount of heat to be generated, that is, part of the energy of the pump light Instead of being converted to laser output, it becomes waste heat in the crystal, resulting in thermal effects of the crystal. [0003] The thermal effects of laser crystals mainly include thermally induced birefringence, thermal depolarization and thermal lensing. The temperature tolerance range of nonlinear crystal phase matching is limited, and the temperature requirement is high, so the heat generated in the laser seriously affects the output power, polarization state and beam quality of the lase...

AI Technical Summary

Problems solved by technology

[0004] Most of the current laser cooling devices install a heat sink at the tail of the laser, and then install a fan at the back. The airflow output by the fan blows to the heat sink and flows out. The convection area is not large enough and the convection speed is not fast enough.

Therefore, the heat dissipation effect is not good, which affects the improvement of the beam quality and power of the laser and the development of laser miniaturization.

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