Coherent Introduces the Industry’s First Commercially Available 50W Pump Laser Diodes for Fiber Lasers
PITTSBURGH, Jan. 17, 2023– COHERENT, a leader in high-power semiconductor lasers, announced the introduction of its next-generation pump laser diodes that achieve an industry-record high output power of 50W from a single chip.
The deployment of fiber lasers for materials processing applications such as cutting, welding, marking, and additive manufacturing is accelerating, driving the demand for key components that lower the cost per watt of output power. The new laser diodes from Coherent achieve 50 W of output power, 40% more than that of the existing product, enabling high-power industrial fiber laser designs with fewer pump laser diodes.
“We believe that this is the first commercially available pump laser diode in the industry to achieve 50W of output power,” said Dr. Karlheinz Gulden, Senior Vice President of, Laser Components and Subsystems Business Unit. “We continue to break new industry records in semiconductor laser diode output power, based on our gallium arsenide technology platform that has decades of field-proven reliability. These are strong differentiators that continue to accelerate our market leadership.”
The new 50W laser diodes are available at 915nm and 976nm. The output facet width of the laser chips is available from 150µm to 350µm, enabling optimal coupling efficiency and output powers for a wide range of fiber laser designs. The chips include Coherent’s proprietary E2 front mirror passivation that prevents catastrophic damage to the laser, even at extremely high output powers.
Coherent offers pump laser diodes as bare dies, chips on ceramic sub mounts, and fiber-coupled multi-emitter modules. Coherent’s broad portfolio of components for fiber lasers includes seed lasers, acoustic-optic modulators, fiber Bragg gratings, kilowatt pumps, and signal combiners, as well as IBS-coated laser optics and micro-optics for high-power isolators.
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