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2025
-
05
Precautions for using laser crystals
Precautions for using laser crystals include the following aspects:
Avoid excessively high environmental humidity
Laser crystals are prone to condensation in high-humidity environments, which can lead to decreased power or damage to the laser system. Therefore, it is recommended to ensure that the environmental humidity is less than 60% when using and storing laser crystals. In addition, condensation of the laser crystal should also be avoided when the temperature difference between the environment and the laser crystal is too large (greater than 10℃).
Prevent contamination and damage
The surface of laser crystals is easily contaminated, such as laser-induced contamination (LIC), which is a deposit formed by the interaction of lasers with gaseous organic molecules, and will reduce the transmittance of the device and damage the crystal. Therefore, during operation, methods that may damage the crystal surface, such as ultrasonic cleaning, should be avoided.
Avoid mechanical pressure and physical damage
Crystals are usually slender and easily breakable, so pressure should be avoided during loading or handling to prevent the crystal from breaking. At the same time, avoid touching the crystal surface directly with your hands to prevent fingerprint or grease contamination.
Cooling system management
Laser crystals require continuous cooling during operation, and the temperature of the cooling water should be adjusted according to the ambient temperature. For example, in summer, the cooling water temperature should not be lower than 3 degrees Celsius above room temperature, and in winter, it should not be lower than 5 degrees Celsius. In addition, the cooling system should be regularly maintained, such as changing the cooling water every three months.
Avoid direct laser irradiation to the eyes
When the laser is operating, the laser output mirror and the crystal coating surface may become damp, so measures should be taken to prevent direct laser irradiation to the eyes. Operators should wear protective glasses to protect their eyesight.
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