High-Brightness by Design

Brightness is a measurement of light power “concentration.” Beam parameter product (BPP) is a laser specification indicating the beam “spread.” For a given output power, the brightness is maximum when the BPP is smallest.

The trick, then, is to design a system that has both high power and a small BPP. High power blue lasers combine outputs of many individual diodes. It takes some clever engineering to do this without making the BPP larger. That’s important, because once the BPP gets larger, it can’t be made smaller.

To optimize beam quality, the output of each of the many diodes needs to be circularized and collimated. NUBURU does this with individual actively aligned micro-optics for each diode. The individual beamlets are then spatially brought together. That preserves the BPP while creating a high-power beam.

As an alternative, consider diodes in a linear array — a bar. Even if circularized, the beams are spread out. When collimated and combined with a single lens, the angular divergence gets very large. The BPP is then dominated by the angular spread. And, once lost, the BPP can’t be recovered. Larger BPP means smaller brightness, and that leads to lower power density and consequently longer processing times.

NUBURU’s approach maintains a small BPP, and that means higher brightness and higher power density. For welding that means faster processing speed, deeper weld penetration, or both.

You may not need to know the design details, but you need the end result: higher power density and improved performance.

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Copper, Aluminum, Silver, Nickel and Dissimilar Metals

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High-Power Blue Lasers

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The Future of 3D Printing is Blue

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Solutions

High Power Blue Lasers

Welding

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The industrial blue laser: spatter-free™ and defect-free copper, aluminum, and dissimilar metal welding

Additive Manufacturing

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The industrial blue laser allows high-precision 3D printing with novel materials

INDUSTRIES

ENERGY STORAGE

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Blue Laser Welding for Increased Quality & Productivity

E-MOBILITY

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Defect-free Blue Laser Welds – Lower Fatigue – Low Loss Joints

AEROSPACE

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High Density 3D Printing with the Blue Industrial Laser

HEALTHCARE

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Higher Quality Welded and 3D-printed Prosthetics

ELECTRONICS PACKAGING

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Stronger, More Conductive Joints with Blue Laser Welding

RESEARCH

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igh-Power Blue Lasers Open Research Frontiers

PRODUCTS

NUBURU’s Unique Solutions for Mass Production

Blue light interacts with Copper, Aluminum, Silver, Nickel and other metals more efficiently than other lasers, enabling higher production yields with a simpler process. NUBURU’s blue lasers uniquely deliver kW-class power with galvo scanner compatibility, enabling high speed welding with a large process window and micron-scale depth control.

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