Fibre laser source repair

Typical faults

• Output power drops gradually or fluctuates during cutting
• Source alarms, e.g. temperature, back-reflection or supply faults
• Failure of individual pump modules or driver electronics
• Damaged fibre connector (e.g. QBH) from contamination or back-reflection
• Damage from condensation due to unsuitable cooling water temperature

Our approach

1. Pre-assessment – from rating plate, alarm history and fault description.
2. Incoming inspection – visual check, power and supply measurement, reading fault memories.
3. Fault isolation – testing pump diodes, drivers, power supplies and beam path down to module level.
4. Findings & quote – repair or replacement, with costs, before we continue.
5. Repair & test – repair, power and stability test, test report.

Sources we work on

IPG

Fibre cables and diode modules – IPG repair in detail

MAX

Diodes, combiners, optics, modules (documented repair of a 20 kW source)

Raycus

Combiners, pump diodes, pilot laser (documented repair of a 6 kW source)

JPT, GW

Fibre laser sources

Laser Experts is not an authorised service partner of the manufacturers named. A third-party repair may affect an existing manufacturer warranty – please check this in advance.

Prevent rather than repair

Many failures originate outside the source: wrong cooling water temperature, dirty protective windows or back-reflection when cutting highly reflective metals. As part of maintenance we check these points regularly.