Common fault phenomena
1. The output power of the laser decreases or becomes unstable.
2. Laser frequency offset or frequency instability.
3. The quality of the laser beam deteriorates or spot distortion occurs.
4. Abnormal noise, vibration, or arcing phenomena occur in the laser.
Exclusion method
1. Decreased or unstable laser output power
(1) Check if the laser pump light source is normal, and replace or repair it if there is a problem.
(2) Check the laser cooling system and clean or replace the coolant if there is any blockage or leakage.
(3) Check the optical components of the laser, and replace or clean them if they are damaged or contaminated.
2. Laser frequency offset or frequency instability
(1) Check if the laser optical cavity is normal, and repair it promptly if it is loose or damaged.
(2) Check the temperature and vibration of the laser environment. If there is any impact, adjust the installation position of the laser or take earthquake prevention measures.
(3) Check the electronic control system of the laser, and repair or replace it if there is any malfunction.
3. Decreased laser beam quality or occurrence of spot distortion
(1) Check if the optical components of the laser are functioning properly. If there is any damage or contamination, clean or replace them.
(2) Check if the laser optical cavity is normal, and repair it promptly if it is loose or damaged.
(3) Check the temperature and vibration of the laser environment. If there is any impact, adjust the installation position of the laser or take earthquake prevention measures.
4. Abnormal noise, vibration or arc phenomenon in the laser
(1) Check whether the laser cooling system and power supply are normal, and promptly eliminate any problems.
(2) Check whether the laser optical cavity and components are damaged or loose, and repair them in a timely manner if there are any problems.
(3) Check the temperature and vibration of the laser environment, and if there is any impact, take earthquake prevention measures or adjust the installation position of the laser.
Preventive measures
1. Regularly check the laser cooling system, clean or replace the coolant.
2. Ensure that the space around the laser is clean and tidy, and prevent dust and dirt from entering the interior of the laser.
3. Regularly maintain the laser optical components, clean or replace contaminated or damaged optical components.
4. Avoid overloading the laser and avoid frequently turning it on and off in a short period of time.
