Versatile Fiber Lasers for Welding


Integrated plug-and-play fibers for flexible metal processing solutions

The all-new nLIGHT® WFL-15000 integrates an optional fiber coupler or 2- or 4-channel beam switch with a high-power fiber laser. Durable and versatile, this laser was designed with trusted and durable components for high productivity solutions in welding, cladding, heat treating, brazing and other materials processing applications. Based on nearly two decades of high-power laser innovation, this fiber laser features the latest in optical technology, allowing for exceptional process range and, consistent part quality. Ergonomically designed to be simple and easy to use for quick fiber replacements and increased uptime.


3-15 kW: Wide range of power options to ensure the right solution for each application.

Optional Fiber Coupler or Switch: Integrated fiber-to-fiber coupler or 2- or 4-channel beam switch increases system capability.

Unparalleled Serviceability: Modular design simplifies repairs maximizing uptime.

Designed for Rugged Durability: Ensures continuous operation in harsh manufacturing environments.

Plug-and-Play Process Fibers: Optional process fibers with output sizes from 100um to 1mm with QD and QBH connectors.

Ergonomic Design: Designed based on input from users to support increased productivity.


Mode of Operation: CW/Modulated

Polarization: Random

Maximum Average Power, CW: 3 ~ 15 kW

Power Tunability: 5 – 100 %

Power Variation, 8-Hour: ≤ 1 %

Modulation Frequency: ≤ 20 kHz

Rise and Fall Times: ≤ 10 μs

Beam Quality: ≤ 2 mm-mrad (3 ~ 5 kW) ,≤ 5 mm-mrad (6 ~ 15 kW)

Wavelength: 1070 ± 10 nm