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Recent progress on high-brightness kW-class direct diode lasers

TeraDiode is manufacturing multi-kW-class ultra-high brightness fiber-coupled direct diode lasers for industrial applications. Our TeraBlade industrial platform achieves world-record brightness levels for direct diode lasers. The laser output has a Beam Parameter Product (BPP) of 4 mm-mrad. This 4-kW fiber-coupled direct diode laser has a comparable BPP to industrial fiber and solid state lasers used for cutting and welding processes.

Next generation of ultra high brightness direct diode lasers

Direct diode lasers have some of the most attractive features of any laser. They are very efficient, compact, wavelength versatile, low cost, and highly reliable. However, the full utilization of direct diode lasers has yet to be realized. This is mainly due their poor output beam quality. Because of this, direct diode lasers are typically used to pump other lasers such as bulk solid-state (rod and thin disk) and fiber lasers. In other words these other lasers are primarily used as brightness converters. Thus, currently industrial lasers for high brightness applications such as cutting and welding are dominated by CO2, fiber, and bulk solid-state lasers.