nLIGHT 12kW High-Power Corona Fiber Lasers


The all-new nLIGHT® Corona CFX-12000 the first high power fiber lasers on the market that give users the ability to tune the beam profiles in the fiber based on their application.

With a single Corona fiber laser, users can rapidly select from high-intensity, small-spot-size beams to large, donut-shaped beams, and everything in between. This dramatic advance enables optimal thick and thin metal cutting, higher cutting speed, superior edge quality, and improved piercing time with a single tool.

End users get the best of all worlds—the speed of high-power fiber lasers for thin sheet, the quality of CO2 lasers for thick mild steel, and the high uptime and lower operating costs of a fiber laser solution.


12kW: Delivers excellent productivity for advanced cutting and welding applications

Optimized Tuning of Beam Size and Shape: Maintains fiber laser performance, stability, efficiency, and reliability with spot sizes and beam shapes from small top-hat to large donut mode

Rapid Beam Switching: Beam adjustments in less than 30 ms allows for real-time optimization of each process step while maintaining full-power operation

Back-Reflection Protection: Hardware-based back-reflection protection allows processing of even the most reflective metals with no interruptions or damage to the laser

Innovative All-Fiber Beam Shaping: All-fiber technology does not use complex, performance limiting hardware such as; free-space optics, zoom process heads, and external fiber-to-fiber couplers

Unparalleled Serviceability: Modular design simplifies repairs maximizing uptime


Mode of Operation: CW/Modulated

Polarization: Random

Maximum Average Power, CW: 12 kW

Power Tunability: 5 – 100 %

Power Variation, 8-Hour: ≤ 1 %

Modulation Frequency: ≤ 50 kHz

Rise and Fall Times: ≤ 10 μs

Beam Quality: Programmable (please refer to the datasheet)

Wavelength: 1070 ± 10 nm