Applicable Systems
YLS-2000
Symptoms
The fiber laser reports a beam mode anomaly. The output beam mode or quality is abnormal.
Possible Causes
- Fiber Bragg grating degradation
- Mode field distortion from fiber stress
- Optical path contamination affecting beam quality
Troubleshooting Steps
- Step 1: Check the beam profile with a beam analyzer
Profile matches the expected mode - Step 2: Inspect the fiber for stress or bend
Fiber is routed without excessive stress - Step 3: Inspect optical components for contamination
Components are clean
How to Reset
To reset: Resolve the beam mode anomaly, then clear the alarm.
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Source: IPG Fiber Laser User Manual, IPG Photonics Corporation
Category: Laser
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