Ремонт волоконного лазера Coherent Excimer CO₂

As a representative brand of high-end industrial laser equipment in the world, Coherent lasers have high-complexity optical systems and precision control modules that place strict demands on maintenance technology. In the face of typical problems encountered by customers, such as laser power attenuation, wavelength drift, and cooling system failure, GEEKVALUE Technology has successfully completed multiple Coherent CO₂/RF/semiconductor laser repairs with its full-link diagnostic capabilities and original factory-level maintenance standards, helping customers reduce operation and maintenance costs by more than 50%.

1. Analysis of typical Coherent laser failure cases

1. Case 1: Coherent Diamond J series CO₂ laser power drop

Failure phenomenon: The output power dropped from 300W to 80W, accompanied by abnormal glow of the discharge tube.

Diagnostic process:

Spectral analysis: Eliminate gas ratio imbalance (He/N₂/CO₂ contamination).

High-voltage module detection: It was found that the RF power supply resonant capacitor was aging (capacitance attenuated by 35%).

Repair plan:

Replace the customized high-voltage capacitor group and reorganize the gas filling formula (original factory process standard).

Calibrate the optical path collimation and restore the power to 295W±2%.

2. Case 2: Coherent HighLight series semiconductor laser wavelength deviation

Fault phenomenon: The central wavelength drifts from 915nm to 905nm, resulting in a decrease in the material absorption rate.

Core technology:

Use a high-resolution spectrometer (Yokogawa AQ6375) to lock the failure of the temperature control module (TEC).

Reconstruct the FBG (fiber grating) feedback circuit, and the wavelength stability reaches ±0.2nm.

2. GEEKVALUE Technology's core maintenance technology barriers

1. Original factory-level testing equipment

Optical diagnosis: equipped with Coherent dedicated beam analyzer (BeamMaster) and M² factor test module.

Electrical system: High-precision oscilloscope (Keysight InfiniiVision) captures RF drive signal distortion.

2. Modular maintenance strategy

Fault module Self-repair capability Alternative solution

RF power supply (RF) Reconstruct PCB circuit, replace IGBT module Domestic customized power supply (cost reduction of 60%)

Optical resonant cavity Collimator mirror coating repair, gas filling regeneration technology Original cavity replacement (delivery time shortened by 70%)

Control system Crack encrypted firmware, rewrite FPGA logic Compatible controller transplantation

3. In-depth preventive maintenance (case value-added service)

Customized Coherent GEM series laser health monitoring system for a certain automobile welding production line:

Real-time monitoring of discharge tube impedance and coolant conductivity.

Predictive maintenance prompts, reducing failure rate by 80%.

3. Service commitment and industry coverage

Quick response: Coherent's full range of lasers will issue a test report within 48 hours.

Industry cases:

Semiconductor: Energy stability repair of excimer laser for lithography.

New energy: Optimization of pulsed laser optical path for power battery pole cutting.

Contact us: GEEKVALUE Technology Laser Repair Center redefines high-end laser aftermarket services with "precise laser diagnosis + ecological spare parts". We have an expert team of engineers and implement 24-hour day and night shifts all year round. We are always by your side whenever you have technical problems.