A high-purity semiconductor laser water cooling device

Abstract

A high purity water cooling device of a semiconductor laser unit is characterized in that a conductivity meter is arranged on a water tank, the water tank is connected with the input end of a water pump, the output end of the water pump is both connected with a first electromagnetic valve and a water filter through a tee joint, a high precision PP folding filter element is arranged in the water filter, the first electromagnetic valve is connected with a resin filter and is connected with a water return tank through the resin filter, the output end of the water filter, used as a cooling water outlet of a water cooling system, is a reserved port connected with the laser unit, cooling water flowing through the laser unit uses an inlet of the water cooling system as a starting point of the cooling water return tank, the inlet of the water cooling system is both connected with a second electromagnetic valve and a flow temperature gauge through a tee joint, then the cooling water returns to the water tank through a third electromagnetic valve, and a one-way valve is connected with the second electromagnetic valve to be used as a blowback air water return port. The high purity water cooling device of the semiconductor laser unit has the function of high purity filtration, the function of rapid ion purification, the function of a blowback air water return loop, and the function of being in communication with an upper computer and controlling the upper computer, and is applied to semiconductor laser unit water cooling systems.

Description

technical field [0001] The invention relates to a semiconductor laser, in particular to a high-purity semiconductor laser water cooling device. The high-purity semiconductor laser water-cooling device has the functions of high-purity filtration, fast ion purification, back-blowing gas return circuit, and communication and control with the host computer, and is applied in the semiconductor laser water-cooling system. Background technique [0002] In semiconductor lasers, a water cooling system is an essential device for cooling the semiconductor stack. However, the current semiconductor lasers use conventional water-cooled control devices, and conventional water-cooled control devices only have simple filtering and basic temperature control means. Semiconductor laser is a kind of equipment that requires high cooling water, and the quality of its cooling water will directly affect its service life. At present, there is no dedicated water cooling system specially developed fo...

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Problems solved by technology

At present, there is no dedicated water cooling system specially developed for semiconductor lasers in the market

However, none of the water-cooling systems sold on the market can meet the needs of semiconductor lasers for water-cooling systems, and the following problems generally exist

[0003] First, the filtration accuracy is low, which cannot meet the microchannel waterway design adopted by the semiconductor laser, and the microchannel will be blocked due to the excessive particle size in the water, which will lead to the life of the semiconductor laser.

[0004] Second, the conventional water-cooling system lacks the control of the conductivity of the cooling water. The semiconductor laser has strict requirements on the conductivity of the cooling water, that is, it cannot be too low or too high. Therefore, even if the conventional water-cooling system has a conductivity detection It is also impossible to control the conductivity, so that the water is replaced frequently during use, which brings a lot of trouble to the user, and the high conductivity may cause fatal damage to the semiconductor laser.

[0005] Third, the current water-cooling system does not have the function of reverse air blowing and returning water, which has brought a lot of unnecessary troubles to users to a certain extent

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