Single-emitter diode lasers are among the key light sources in modern laser technology and are used both directly in industrial applications and as pump sources for solid-state and fiber lasers. They combine high electro-optical efficiency with compact designs and a precisely adjustable wavelength.

Single-emitter diode lasers are characterized by a highly elliptical beam profile with significantly different divergences along the fast axis and slow axis. To achieve efficient beam guidance, high focusability, and stable system performance, precisely tuned micro-optical collimation and beam shaping are essential. In applications such as welding, soldering, surface treatment, or additive manufacturing, single-emitter diode lasers thus serve as an efficient and precise energy source.