Solid-state laser device internal device temperature control system

Abstract

The invention discloses a temperature control system for an internal device of a solid-state laser device. According to the system, temperature control is performed on a laser crystal and other crystals separately based on a solid-state laser; the system comprises an LD laser diode, a first crystal, a second crystal, heat sinks, a heat insulation layer, a refrigeration sheet, cooling fins and a cooling fan, wherein the first crystal is a laser crystal of a laser device, the second crystal is another crystal in the laser device, the four side surfaces of each crystal are wrapped with the heat sinks, heat is isolated between the heat sinks of the two crystals by the heat insulation layer, and the cooling fins are arranged on the upper bottom surfaces and the lower bottom surfaces of the heatsinks. According to the invention, the heat sinks of the first crystal and the second crystal are respectively controlled at different cooling temperatures through the cooling fins, and then heat generated by the crystals is conducted to a laser base through the cooling fins and is transmitted to a working environment through the cooling fan, so that the matching degree of the laser crystal and other crystals is improved while the laser transmission efficiency and the laser output power are also improved.

Description

technical field [0001] The invention belongs to the field of laser technology and temperature control, and in particular relates to a temperature control system for a solid-state laser. Background technique [0002] With the continuous development of laser technology, the application range of lasers is also expanding, and new requirements are put forward for the wavelength, frequency selection, frequency doubling, and Q-switching of lasers. In order to meet these requirements, two lasers are often used inside the laser. Or two or more different crystals cooperate to achieve laser output that meets the requirements. The internal devices of these lasers are closely arranged, and the heat dissipation problem of high heat flux generated by it also needs to be paid attention to. [0003] At present, there are many temperature control devices for solid-state lasers, but most of them only control the heat dissipation and temperature of the laser crystal or the overall resonator, i...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many temperature control devices for solid-state lasers, but most of them only control the heat dissipation and temperature of the laser crystal or the overall resonator, ignoring the temperature matching problem caused by the difference in heat production and heat conduction speed between the laser crystal and other crystals behind , which will cause a mismatch problem in the laser with multiple crystals inside, and reduce the transmission efficiency of the laser. Therefore, it is urgent to provide a temperature control system that can control the temperature of the laser crystal and other crystals inside the laser.

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