Laser Testing: 5 Key Indicators Determine Equipment Life

Stability testing of lasers is a core element in ensuring the long-term reliability of the equipment, and mastering five key indicators can effectively extend the lifespan of the equipment.The book provides a detailed explanation of laser stability testing, factors affecting the life of the equipment, and daily maintenance, to help users accurately assess the condition of their equipment and optimize its use.No matter whether you are a technician or a manager, this practical information will provide you with important references.

Why is stability testing so important to lasers?

The stability of the laser directly affects its lifespan and its output performance.If the machine's power supply fluctuates or the temperature becomes abnormal while it is working, it will not only affect the precision of the work, but will also significantly reduce the life of the core components.Through scientific testing of five key indicators, we can detect problems in advance, prevent equipment from going into service with 'health problems,' thereby lowering maintenance costs and extending the service life.

The most important indicator of quality is the stability of the power output.

How can power fluctuations be tested?

The power fluctuations are the "heartbeats" of the laser.When testing, it is suggested that the equipment run continuously for eight hours or more, with the power meter recording data changes every minute.When the deviation exceeds ± 3 %, we have to be concerned about aging of the power supply module or the resonant cavity.In daily use, you can combine it with a voltage stabilizer to reduce the interference from the power grid.

M2 Factor: The second key indicator is the beam quality parameter.

What does an abnormal M2 mean?

The M2 factor is like a laser's "ID card." The closer the number is to 1, the better the beam quality.If the M2 value rises during testing, this could be a sign of contamination of the lens or of a shift in the path of the laser beam.Regular cleaning of the optical components and calibration of the light path can keep the beam quality in a stable state.

Indicator # 3: Air conditioning efficiency.

How do you control the range of temperature fluctuations?

Lasers are most afraid of "sudden changes in temperature.Tests focus on the response rate of the cooling system, and ideally the temperature should be kept within ± 0.5 ° C.If the cooling fan gets noisy or the temperature frequently goes beyond the limit, it may be time to change the coolant.

Key indicator four: frequency stability.

How does frequency drift affect the processing effect?

The stability of the laser's pulse frequency directly determines the precision of the work.It is suggested that when testing, you simulate actual workloads and observe whether the drift is within ± 0.1 % of the nominal value.If the frequency is unstable, first check to see if the capacitors in the drive circuit are old and tired.

Key indicator # 5: Startup repeatability.

How can a cold start test be made effective?

The most revealing time is when the computer is first turned on.The researchers recorded the startup times for a week, and compared them to the time needed for the laser output to stabilize.If the time it takes is increasing, it may be a signal that the laser medium's performance is declining, and maintenance needs to be planned.

Some practical advice on day-to-day maintenance.

In addition to regular tests, it is suggested that all the indicators be recalibrated every three months, and that historical data be preserved so that comparisons can be made.If an indicator is abnormal, don't rush to replace an expensive component. First check environmental factors, such as the quality of the power supply or the temperature and humidity in the workshop.Remember, the cost of preventative maintenance is often 70 % less than the cost of repairs after a breakdown.

Finally, it is important to note that different brands of laser may require special tests, and it is important to read the manual carefully before using the machine.If you incorporate these key indicators into your daily management, your equipment will be able to work at least three to five more years.